From 5589c21862f49f682d55c321389cd6f631972564 Mon Sep 17 00:00:00 2001 From: Huaxin Lu Date: Tue, 18 Oct 2022 12:50:09 +0800 Subject: [PATCH] shim support sm verify Co-authored-by: Yusong Gao Signed-off-by: Huaxin Lu --- Cryptlib/Hash/CryptSm3.c | 231 ++++ Cryptlib/Include/openssl/crypto.h | 10 + Cryptlib/Include/openssl/ec.h | 20 + Cryptlib/Include/openssl/ecdsa.h | 7 + Cryptlib/Include/openssl/err.h | 6 + Cryptlib/Include/openssl/evp.h | 25 + Cryptlib/Include/openssl/obj_mac.h | 33 + Cryptlib/Include/openssl/opensslconf.h | 8 +- Cryptlib/Include/openssl/sm2.h | 79 ++ Cryptlib/Include/openssl/sm2err.h | 65 + Cryptlib/Include/openssl/sm3.h | 39 + Cryptlib/Include/openssl/x509.h | 7 + Cryptlib/Library/BaseCryptLib.h | 111 ++ Cryptlib/Makefile | 6 + Cryptlib/OpenSSL/Makefile | 38 +- Cryptlib/OpenSSL/crypto/asn1/a_sign.c | 11 +- Cryptlib/OpenSSL/crypto/asn1/ameth_lib.c | 8 +- Cryptlib/OpenSSL/crypto/asn1/x_req.c | 13 + Cryptlib/OpenSSL/crypto/asn1/x_x509.c | 6 + Cryptlib/OpenSSL/crypto/bn/bn_lib.c | 3 - Cryptlib/OpenSSL/crypto/ec/ec_ameth.c | 646 +++++++++ Cryptlib/OpenSSL/crypto/ec/ec_asn1.c | 1278 ++++++++++++++++++ Cryptlib/OpenSSL/crypto/ec/ec_check.c | 120 ++ Cryptlib/OpenSSL/crypto/ec/ec_curve.c | 343 +++++ Cryptlib/OpenSSL/crypto/ec/ec_cvt.c | 154 +++ Cryptlib/OpenSSL/crypto/ec/ec_err.c | 332 +++++ Cryptlib/OpenSSL/crypto/ec/ec_key.c | 564 ++++++++ Cryptlib/OpenSSL/crypto/ec/ec_lcl.h | 470 +++++++ Cryptlib/OpenSSL/crypto/ec/ec_lib.c | 1077 +++++++++++++++ Cryptlib/OpenSSL/crypto/ec/ec_mult.c | 913 +++++++++++++ Cryptlib/OpenSSL/crypto/ec/ec_oct.c | 163 +++ Cryptlib/OpenSSL/crypto/ec/ec_pmeth.c | 410 ++++++ Cryptlib/OpenSSL/crypto/ec/ec_print.c | 179 +++ Cryptlib/OpenSSL/crypto/ec/eck_prn.c | 330 +++++ Cryptlib/OpenSSL/crypto/ec/ecp_mont.c | 308 +++++ Cryptlib/OpenSSL/crypto/ec/ecp_nist.c | 220 +++ Cryptlib/OpenSSL/crypto/ec/ecp_oct.c | 428 ++++++ Cryptlib/OpenSSL/crypto/ec/ecp_smpl.c | 1418 ++++++++++++++++++++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_asn1.c | 75 ++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_err.c | 107 ++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_lib.c | 354 +++++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_locl.h | 120 ++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_ossl.c | 464 +++++++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_sign.c | 106 ++ Cryptlib/OpenSSL/crypto/ecdsa/ecs_vrf.c | 112 ++ Cryptlib/OpenSSL/crypto/err/err.c | 1 + Cryptlib/OpenSSL/crypto/evp/c_alld.c | 3 + Cryptlib/OpenSSL/crypto/evp/digest.c | 62 +- Cryptlib/OpenSSL/crypto/evp/evp_lib.c | 5 + Cryptlib/OpenSSL/crypto/evp/evp_locl.h | 10 + Cryptlib/OpenSSL/crypto/evp/m_sigver.c | 17 + Cryptlib/OpenSSL/crypto/evp/p_lib.c | 44 + Cryptlib/OpenSSL/crypto/evp/pmeth_lib.c | 16 +- Cryptlib/OpenSSL/crypto/mem.c | 18 + Cryptlib/OpenSSL/crypto/o_str.c | 87 ++ Cryptlib/OpenSSL/crypto/objects/obj_dat.h | 46 +- Cryptlib/OpenSSL/crypto/objects/obj_xref.h | 2 + Cryptlib/OpenSSL/crypto/pkcs7/pk7_doit.c | 34 +- Cryptlib/OpenSSL/crypto/sm2/sm2_err.c | 71 + Cryptlib/OpenSSL/crypto/sm2/sm2_pmeth.c | 292 ++++ Cryptlib/OpenSSL/crypto/sm2/sm2_sign.c | 325 +++++ Cryptlib/OpenSSL/crypto/sm3/m_sm3.c | 52 + Cryptlib/OpenSSL/crypto/sm3/sm3.c | 196 +++ Cryptlib/OpenSSL/crypto/sm3/sm3_local.h | 79 ++ Cryptlib/OpenSSL/crypto/x509/x_all.c | 142 ++ Cryptlib/Pk/CryptPkcs7Verify.c | 5 + Makefile | 2 +- MokManager.c | 8 + include/pe.h | 7 + include/peimage.h | 3 + pe.c | 100 ++ shim.c | 73 +- shim.h | 20 + 73 files changed, 13094 insertions(+), 43 deletions(-) create mode 100644 Cryptlib/Hash/CryptSm3.c create mode 100644 Cryptlib/Include/openssl/sm2.h create mode 100644 Cryptlib/Include/openssl/sm2err.h create mode 100644 Cryptlib/Include/openssl/sm3.h create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_ameth.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_asn1.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_check.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_curve.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_cvt.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_err.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_key.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_lcl.h create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_lib.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_mult.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_oct.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_pmeth.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ec_print.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/eck_prn.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ecp_mont.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ecp_nist.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ecp_oct.c create mode 100644 Cryptlib/OpenSSL/crypto/ec/ecp_smpl.c create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_asn1.c create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_err.c create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_lib.c create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_locl.h create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_ossl.c create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_sign.c create mode 100644 Cryptlib/OpenSSL/crypto/ecdsa/ecs_vrf.c create mode 100644 Cryptlib/OpenSSL/crypto/sm2/sm2_err.c create mode 100644 Cryptlib/OpenSSL/crypto/sm2/sm2_pmeth.c create mode 100644 Cryptlib/OpenSSL/crypto/sm2/sm2_sign.c create mode 100644 Cryptlib/OpenSSL/crypto/sm3/m_sm3.c create mode 100644 Cryptlib/OpenSSL/crypto/sm3/sm3.c create mode 100644 Cryptlib/OpenSSL/crypto/sm3/sm3_local.h diff --git a/Cryptlib/Hash/CryptSm3.c b/Cryptlib/Hash/CryptSm3.c new file mode 100644 index 0000000..c522365 --- /dev/null +++ b/Cryptlib/Hash/CryptSm3.c @@ -0,0 +1,231 @@ +/** @file + SM3 Digest Wrapper Implementation over OpenSSL. + +Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include "InternalCryptLib.h" +#include + +/** + Retrieves the size, in bytes, of the context buffer required for SM3 hash operations. + + @return The size, in bytes, of the context buffer required for SM3 hash operations. + +**/ +UINTN +EFIAPI +Sm3GetContextSize ( + VOID + ) +{ + // + // Retrieves OpenSSL SM3 Context Size + // + return (UINTN) (sizeof (SM3_CTX)); +} + +/** + Initializes user-supplied memory pointed by Sm3Context as SM3 hash context for + subsequent use. + + If Sm3Context is NULL, then return FALSE. + + @param[out] Sm3Context Pointer to SM3 context being initialized. + + @retval TRUE SM3 context initialization succeeded. + @retval FALSE SM3 context initialization failed. + +**/ +BOOLEAN +EFIAPI +Sm3Init ( + OUT VOID *Sm3Context + ) +{ + // + // Check input parameters. + // + if (Sm3Context == NULL) { + return FALSE; + } + + // + // OpenSSL SM3 Context Initialization + // + return (BOOLEAN) (sm3_init ((SM3_CTX *) Sm3Context)); +} + +/** + Makes a copy of an existing SM3 context. + + If Sm3Context is NULL, then return FALSE. + If NewSm3Context is NULL, then return FALSE. + + @param[in] Sm3Context Pointer to SM3 context being copied. + @param[out] NewSm3Context Pointer to new SM3 context. + + @retval TRUE SM3 context copy succeeded. + @retval FALSE SM3 context copy failed. + +**/ +BOOLEAN +EFIAPI +Sm3Duplicate ( + IN CONST VOID *Sm3Context, + OUT VOID *NewSm3Context + ) +{ + // + // Check input parameters. + // + if (Sm3Context == NULL || NewSm3Context == NULL) { + return FALSE; + } + + CopyMem (NewSm3Context, (void *)Sm3Context, sizeof (SM3_CTX)); + + return TRUE; +} + +/** + Digests the input data and updates SM3 context. + + This function performs SM3 digest on a data buffer of the specified size. + It can be called multiple times to compute the digest of long or discontinuous data streams. + SM3 context should be already correctly initialized by Sm3Init(), and should not be finalized + by Sm3Final(). Behavior with invalid context is undefined. + + If Sm3Context is NULL, then return FALSE. + + @param[in, out] Sm3Context Pointer to the SM3 context. + @param[in] Data Pointer to the buffer containing the data to be hashed. + @param[in] DataSize Size of Data buffer in bytes. + + @retval TRUE SM3 data digest succeeded. + @retval FALSE SM3 data digest failed. + +**/ +BOOLEAN +EFIAPI +Sm3Update ( + IN OUT VOID *Sm3Context, + IN CONST VOID *Data, + IN UINTN DataSize + ) +{ + // + // Check input parameters. + // + if (Sm3Context == NULL) { + return FALSE; + } + + // + // Check invalid parameters, in case that only DataLength was checked in OpenSSL + // + if (Data == NULL && DataSize != 0) { + return FALSE; + } + + // + // OpenSSL SM3 Hash Update + // + return (BOOLEAN) (sm3_update ((SM3_CTX *) Sm3Context, Data, DataSize)); +} + +/** + Completes computation of the SM3 digest value. + + This function completes SM3 hash computation and retrieves the digest value into + the specified memory. After this function has been called, the SM3 context cannot + be used again. + SM3 context should be already correctly initialized by Sm3Init(), and should not be + finalized by Sm3Final(). Behavior with invalid SM3 context is undefined. + + If Sm3Context is NULL, then return FALSE. + If HashValue is NULL, then return FALSE. + + @param[in, out] Sm3Context Pointer to the SM3 context. + @param[out] HashValue Pointer to a buffer that receives the SM3 digest + value (32 bytes). + + @retval TRUE SM3 digest computation succeeded. + @retval FALSE SM3 digest computation failed. + +**/ +BOOLEAN +EFIAPI +Sm3Final ( + IN OUT VOID *Sm3Context, + OUT UINT8 *HashValue + ) +{ + // + // Check input parameters. + // + if (Sm3Context == NULL || HashValue == NULL) { + return FALSE; + } + + // + // OpenSSL SM3 Hash Finalization + // + return (BOOLEAN) (sm3_final (HashValue, (SM3_CTX *) Sm3Context)); +} + +/** + Computes the SM3 message digest of a input data buffer. + + This function performs the SM3 message digest of a given data buffer, and places + the digest value into the specified memory. + + If this interface is not supported, then return FALSE. + + @param[in] Data Pointer to the buffer containing the data to be hashed. + @param[in] DataSize Size of Data buffer in bytes. + @param[out] HashValue Pointer to a buffer that receives the SM3 digest + value (32 bytes). + + @retval TRUE SM3 digest computation succeeded. + @retval FALSE SM3 digest computation failed. + @retval FALSE This interface is not supported. + +**/ +BOOLEAN +EFIAPI +Sm3HashAll ( + IN CONST VOID *Data, + IN UINTN DataSize, + OUT UINT8 *HashValue + ) +{ + // + // Check input parameters. + // + if (HashValue == NULL) { + return FALSE; + } + if (Data == NULL && DataSize != 0) { + return FALSE; + } + + // + // OpenSSL SM3 Hash Computation. + // + + SM3_CTX c; + sm3_init(&c); + sm3_update(&c, Data, DataSize); + sm3_final(HashValue, &c); + + return TRUE; +} diff --git a/Cryptlib/Include/openssl/crypto.h b/Cryptlib/Include/openssl/crypto.h index e201a12..b0fbe1c 100644 --- a/Cryptlib/Include/openssl/crypto.h +++ b/Cryptlib/Include/openssl/crypto.h @@ -380,6 +380,7 @@ int CRYPTO_is_mem_check_on(void); # define is_MemCheck_on() CRYPTO_is_mem_check_on() # define OPENSSL_malloc(num) CRYPTO_malloc((int)num,OPENSSL_FILE,OPENSSL_LINE) +# define OPENSSL_zalloc(num) CRYPTO_zalloc((int)num,OPENSSL_FILE,OPENSSL_LINE) # define OPENSSL_strdup(str) CRYPTO_strdup((str),OPENSSL_FILE,OPENSSL_LINE) # define OPENSSL_realloc(addr,num) \ CRYPTO_realloc((char *)addr,(int)num,OPENSSL_FILE,OPENSSL_LINE) @@ -389,6 +390,8 @@ int CRYPTO_is_mem_check_on(void); CRYPTO_remalloc((char **)addr,(int)num,OPENSSL_FILE,OPENSSL_LINE) # define OPENSSL_freeFunc CRYPTO_free # define OPENSSL_free(addr) CRYPTO_free(addr) +# define OPENSSL_clear_free(addr, num) \ + CRYPTO_clear_free(addr,num,OPENSSL_FILE,OPENSSL_LINE) # define OPENSSL_malloc_locked(num) \ CRYPTO_malloc_locked((int)num,OPENSSL_FILE,OPENSSL_LINE) @@ -399,6 +402,8 @@ unsigned long SSLeay(void); int OPENSSL_issetugid(void); +unsigned char *OPENSSL_hexstr2buf(const char *str, long *len); + /* An opaque type representing an implementation of "ex_data" support */ typedef struct st_CRYPTO_EX_DATA_IMPL CRYPTO_EX_DATA_IMPL; /* Return an opaque pointer to the current "ex_data" implementation */ @@ -533,12 +538,14 @@ void CRYPTO_get_mem_debug_functions(void (**m) void *CRYPTO_malloc_locked(int num, const char *file, int line); void CRYPTO_free_locked(void *ptr); void *CRYPTO_malloc(int num, const char *file, int line); +void *CRYPTO_zalloc(int num, const char *file, int line); char *CRYPTO_strdup(const char *str, const char *file, int line); void CRYPTO_free(void *ptr); void *CRYPTO_realloc(void *addr, int num, const char *file, int line); void *CRYPTO_realloc_clean(void *addr, int old_num, int num, const char *file, int line); void *CRYPTO_remalloc(void *addr, int num, const char *file, int line); +void CRYPTO_clear_free(void *ptr, int num, const char *file, int line); void OPENSSL_cleanse(void *ptr, size_t len); @@ -651,10 +658,13 @@ void ERR_load_CRYPTO_strings(void); # define CRYPTO_F_INT_DUP_EX_DATA 106 # define CRYPTO_F_INT_FREE_EX_DATA 107 # define CRYPTO_F_INT_NEW_EX_DATA 108 +# define CRYPTO_F_OPENSSL_HEXSTR2BUF 118 /* Reason codes. */ # define CRYPTO_R_FIPS_MODE_NOT_SUPPORTED 101 # define CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK 100 +# define CRYPTO_R_ILLEGAL_HEX_DIGIT 102 +# define CRYPTO_R_ODD_NUMBER_OF_DIGITS 103 #ifdef __cplusplus } diff --git a/Cryptlib/Include/openssl/ec.h b/Cryptlib/Include/openssl/ec.h index 81e6faf..e315025 100644 --- a/Cryptlib/Include/openssl/ec.h +++ b/Cryptlib/Include/openssl/ec.h @@ -254,6 +254,12 @@ BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group); */ int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); +/** Gets the order of an EC_GROUP + * \param group EC_GROUP object + * \return the group order + */ +const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); + /** Gets the cofactor of a EC_GROUP * \param group EC_GROUP object * \param cofactor BIGNUM to which the cofactor is copied @@ -1053,6 +1059,17 @@ int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ EVP_PKEY_OP_DERIVE, \ EVP_PKEY_CTRL_GET_EC_KDF_UKM, 0, (void *)p) +# define EVP_PKEY_CTX_set1_id(ctx, id, id_len) \ + EVP_PKEY_CTX_ctrl(ctx, -1, -1, \ + EVP_PKEY_CTRL_SET1_ID, (int)id_len, (void*)(id)) + +# define EVP_PKEY_CTX_get1_id(ctx, id) \ + EVP_PKEY_CTX_ctrl(ctx, -1, -1, \ + EVP_PKEY_CTRL_GET1_ID, 0, (void*)(id)) + +# define EVP_PKEY_CTX_get1_id_len(ctx, id_len) \ + EVP_PKEY_CTX_ctrl(ctx, -1, -1, \ + EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)(id_len)) # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) # define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2) @@ -1064,6 +1081,9 @@ int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); # define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8) # define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9) # define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10) +# define EVP_PKEY_CTRL_SET1_ID (EVP_PKEY_ALG_CTRL + 11) +# define EVP_PKEY_CTRL_GET1_ID (EVP_PKEY_ALG_CTRL + 12) +# define EVP_PKEY_CTRL_GET1_ID_LEN (EVP_PKEY_ALG_CTRL + 13) /* KDF types */ # define EVP_PKEY_ECDH_KDF_NONE 1 # define EVP_PKEY_ECDH_KDF_X9_62 2 diff --git a/Cryptlib/Include/openssl/ecdsa.h b/Cryptlib/Include/openssl/ecdsa.h index a6f0930..e51d924 100644 --- a/Cryptlib/Include/openssl/ecdsa.h +++ b/Cryptlib/Include/openssl/ecdsa.h @@ -90,6 +90,13 @@ ECDSA_SIG *ECDSA_SIG_new(void); */ void ECDSA_SIG_free(ECDSA_SIG *sig); +/** Accessor for r and s fields of ECDSA_SIG + * \param sig pointer to ECDSA_SIG structure + * \param pr pointer to BIGNUM pointer for r (may be NULL) + * \param ps pointer to BIGNUM pointer for s (may be NULL) + */ +void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); + /** DER encode content of ECDSA_SIG object (note: this function modifies *pp * (*pp += length of the DER encoded signature)). * \param sig pointer to the ECDSA_SIG object diff --git a/Cryptlib/Include/openssl/err.h b/Cryptlib/Include/openssl/err.h index 5a01980..c8286e1 100644 --- a/Cryptlib/Include/openssl/err.h +++ b/Cryptlib/Include/openssl/err.h @@ -197,6 +197,8 @@ typedef struct err_state_st { # define ERR_LIB_TS 47 # define ERR_LIB_HMAC 48 # define ERR_LIB_JPAKE 49 +# define ERR_LIB_SM2 53 + # define ERR_LIB_USER 128 @@ -233,6 +235,7 @@ typedef struct err_state_st { # define TSerr(f,r) ERR_PUT_error(ERR_LIB_TS,(f),(r),OPENSSL_FILE,OPENSSL_LINE) # define HMACerr(f,r) ERR_PUT_error(ERR_LIB_HMAC,(f),(r),OPENSSL_FILE,OPENSSL_LINE) # define JPAKEerr(f,r) ERR_PUT_error(ERR_LIB_JPAKE,(f),(r),OPENSSL_FILE,OPENSSL_LINE) +# define SM2err(f,r) ERR_PUT_error(ERR_LIB_SM2,(f),(r),OPENSSL_FILE,OPENSSL_LINE) /* * Borland C seems too stupid to be able to shift and do longs in the @@ -304,6 +307,9 @@ typedef struct err_state_st { # define ERR_R_PASSED_NULL_PARAMETER (3|ERR_R_FATAL) # define ERR_R_INTERNAL_ERROR (4|ERR_R_FATAL) # define ERR_R_DISABLED (5|ERR_R_FATAL) +# define ERR_R_INIT_FAIL (6|ERR_R_FATAL) +# define ERR_R_PASSED_INVALID_ARGUMENT (7) +# define ERR_R_OPERATION_FAIL (8|ERR_R_FATAL) /* * 99 is the maximum possible ERR_R_... code, higher values are reserved for diff --git a/Cryptlib/Include/openssl/evp.h b/Cryptlib/Include/openssl/evp.h index 376f260..4e1d9bb 100644 --- a/Cryptlib/Include/openssl/evp.h +++ b/Cryptlib/Include/openssl/evp.h @@ -115,6 +115,7 @@ # define EVP_PKEY_DH NID_dhKeyAgreement # define EVP_PKEY_DHX NID_dhpublicnumber # define EVP_PKEY_EC NID_X9_62_id_ecPublicKey +# define EVP_PKEY_SM2 NID_sm2 # define EVP_PKEY_HMAC NID_hmac # define EVP_PKEY_CMAC NID_cmac @@ -122,6 +123,12 @@ extern "C" { #endif +/* + * Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag + * values in evp.h + */ +#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400 + /* * Type needs to be a bit field Sub-type needs to be for variations on the * method, as in, can it do arbitrary encryption.... @@ -526,6 +533,8 @@ const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx); # define EVP_MD_CTX_block_size(e) EVP_MD_block_size(EVP_MD_CTX_md(e)) # define EVP_MD_CTX_type(e) EVP_MD_type(EVP_MD_CTX_md(e)) +void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx); + int EVP_CIPHER_nid(const EVP_CIPHER *cipher); # define EVP_CIPHER_name(e) OBJ_nid2sn(EVP_CIPHER_nid(e)) int EVP_CIPHER_block_size(const EVP_CIPHER *cipher); @@ -583,6 +592,9 @@ int EVP_Cipher(EVP_CIPHER_CTX *c, # define EVP_delete_digest_alias(alias) \ OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS); +EVP_MD_CTX *EVP_MD_CTX_new(void); +int EVP_MD_CTX_reset(EVP_MD_CTX *ctx); +void EVP_MD_CTX_free(EVP_MD_CTX *ctx); void EVP_MD_CTX_init(EVP_MD_CTX *ctx); int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx); EVP_MD_CTX *EVP_MD_CTX_create(void); @@ -666,6 +678,10 @@ int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx, int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig, size_t siglen); +int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret, + size_t siglen, const unsigned char *tbs, + size_t tbslen); + int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, const unsigned char *ek, int ekl, const unsigned char *iv, EVP_PKEY *priv); @@ -741,6 +757,9 @@ const EVP_MD *EVP_ripemd160(void); # ifndef OPENSSL_NO_WHIRLPOOL const EVP_MD *EVP_whirlpool(void); # endif +# ifndef OPENSSL_NO_SM3 +const EVP_MD *EVP_sm3(void); +# endif const EVP_CIPHER *EVP_enc_null(void); /* does nothing :-) */ # ifndef OPENSSL_NO_DES const EVP_CIPHER *EVP_des_ecb(void); @@ -954,10 +973,15 @@ int EVP_PKEY_base_id(const EVP_PKEY *pkey); int EVP_PKEY_bits(EVP_PKEY *pkey); int EVP_PKEY_size(EVP_PKEY *pkey); int EVP_PKEY_set_type(EVP_PKEY *pkey, int type); +int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type); int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len); int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key); void *EVP_PKEY_get0(EVP_PKEY *pkey); +# ifndef OPENSSL_NO_SM2 +int EVP_PKEY_is_sm2(EVP_PKEY *pkey); +# endif + # ifndef OPENSSL_NO_RSA struct rsa_st; int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key); @@ -976,6 +1000,7 @@ struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey); # ifndef OPENSSL_NO_EC struct ec_key_st; int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, struct ec_key_st *key); +struct ec_key_st *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey); struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey); # endif diff --git a/Cryptlib/Include/openssl/obj_mac.h b/Cryptlib/Include/openssl/obj_mac.h index 779c309..91b75e0 100644 --- a/Cryptlib/Include/openssl/obj_mac.h +++ b/Cryptlib/Include/openssl/obj_mac.h @@ -4192,3 +4192,36 @@ #define LN_jurisdictionCountryName "jurisdictionCountryName" #define NID_jurisdictionCountryName 957 #define OBJ_jurisdictionCountryName 1L,3L,6L,1L,4L,1L,311L,60L,2L,1L,3L + +#define SN_ISO_CN "ISO-CN" +#define LN_ISO_CN "ISO CN Member Body" +#define NID_ISO_CN 958 +#define OBJ_ISO_CN OBJ_member_body,156L + +#define SN_oscca "oscca" +#define NID_oscca 959 +#define OBJ_oscca OBJ_ISO_CN,10197L + +#define SN_sm_scheme "sm-scheme" +#define NID_sm_scheme 960 +#define OBJ_sm_scheme OBJ_oscca,1L + +#define SN_sm2 "SM2" +#define LN_sm2 "sm2" +#define NID_sm2 961 +#define OBJ_sm2 OBJ_sm_scheme,301L + +#define SN_sm3 "SM3" +#define LN_sm3 "sm3" +#define NID_sm3 962 +#define OBJ_sm3 OBJ_sm_scheme,401L + +#define SN_sm3WithRSAEncryption "RSA-SM3" +#define LN_sm3WithRSAEncryption "sm3WithRSAEncryption" +#define NID_sm3WithRSAEncryption 963 +#define OBJ_sm3WithRSAEncryption OBJ_sm_scheme,504L + +#define SN_SM2_with_SM3 "SM2-SM3" +#define LN_SM2_with_SM3 "SM2-with-SM3" +#define NID_SM2_with_SM3 964 +#define OBJ_SM2_with_SM3 OBJ_sm_scheme,501L diff --git a/Cryptlib/Include/openssl/opensslconf.h b/Cryptlib/Include/openssl/opensslconf.h index 4a36e9f..6f19ce6 100644 --- a/Cryptlib/Include/openssl/opensslconf.h +++ b/Cryptlib/Include/openssl/opensslconf.h @@ -10,7 +10,6 @@ extern "C" { #endif #ifndef OPENSSL_DOING_MAKEDEPEND - #ifndef OPENSSL_NO_BF # define OPENSSL_NO_BF #endif @@ -41,8 +40,8 @@ extern "C" { #ifndef OPENSSL_NO_DYNAMIC_ENGINE # define OPENSSL_NO_DYNAMIC_ENGINE #endif -#ifndef OPENSSL_NO_EC -# define OPENSSL_NO_EC +#ifndef OPENSSL_NO_EC2M +# define OPENSSL_NO_EC2M #endif #ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 # define OPENSSL_NO_EC_NISTP_64_GCC_128 @@ -50,9 +49,6 @@ extern "C" { #ifndef OPENSSL_NO_ECDH # define OPENSSL_NO_ECDH #endif -#ifndef OPENSSL_NO_ECDSA -# define OPENSSL_NO_ECDSA -#endif #ifndef OPENSSL_NO_ENGINE # define OPENSSL_NO_ENGINE #endif diff --git a/Cryptlib/Include/openssl/sm2.h b/Cryptlib/Include/openssl/sm2.h new file mode 100644 index 0000000..37c67a3 --- /dev/null +++ b/Cryptlib/Include/openssl/sm2.h @@ -0,0 +1,79 @@ +/* + * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017 Ribose Inc. All Rights Reserved. + * Ported from Ribose contributions from Botan. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#ifndef OSSL_CRYPTO_SM2_H +# define OSSL_CRYPTO_SM2_H +# include + +# ifndef OPENSSL_NO_SM2 + +# include +# include + +/* The default user id as specified in GM/T 0009-2012 */ +# define SM2_DEFAULT_USERID "1234567812345678" +# define SM2_DEFAULT_USERID_LEN 16 + +int sm2_compute_z_digest(uint8_t *out, + const EVP_MD *digest, + const uint8_t *id, + const size_t id_len, + const EC_KEY *key); + +/* + * SM2 signature operation. Computes Z and then signs H(Z || msg) using SM2 + */ +ECDSA_SIG *sm2_do_sign(const EC_KEY *key, + const EVP_MD *digest, + const uint8_t *id, + const size_t id_len, + const uint8_t *msg, size_t msg_len); + +int sm2_do_verify(const EC_KEY *key, + const EVP_MD *digest, + const ECDSA_SIG *signature, + const uint8_t *id, + const size_t id_len, + const uint8_t *msg, size_t msg_len); + +/* + * SM2 signature generation. + */ +int sm2_sign(const unsigned char *dgst, int dgstlen, + unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); + +/* + * SM2 signature verification. + */ +int sm2_verify(const unsigned char *dgst, int dgstlen, + const unsigned char *sig, int siglen, EC_KEY *eckey); + +/* + * SM2 encryption + */ +int sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len, + size_t *ct_size); + +int sm2_plaintext_size(const unsigned char *ct, size_t ct_size, size_t *pt_size); + +int sm2_encrypt(const EC_KEY *key, + const EVP_MD *digest, + const uint8_t *msg, + size_t msg_len, + uint8_t *ciphertext_buf, size_t *ciphertext_len); + +int sm2_decrypt(const EC_KEY *key, + const EVP_MD *digest, + const uint8_t *ciphertext, + size_t ciphertext_len, uint8_t *ptext_buf, size_t *ptext_len); + +# endif /* OPENSSL_NO_SM2 */ +#endif diff --git a/Cryptlib/Include/openssl/sm2err.h b/Cryptlib/Include/openssl/sm2err.h new file mode 100644 index 0000000..251c4f9 --- /dev/null +++ b/Cryptlib/Include/openssl/sm2err.h @@ -0,0 +1,65 @@ +/* + * Generated by util/mkerr.pl DO NOT EDIT + * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#ifndef HEADER_SM2ERR_H +# define HEADER_SM2ERR_H + +# include + +# include + +# ifndef OPENSSL_NO_SM2 + +# ifdef __cplusplus +extern "C" +# endif +int ERR_load_SM2_strings(void); + +/* + * SM2 function codes. + */ +# define SM2_F_PKEY_SM2_COPY 115 +# define SM2_F_PKEY_SM2_CTRL 109 +# define SM2_F_PKEY_SM2_CTRL_STR 110 +# define SM2_F_PKEY_SM2_DIGEST_CUSTOM 114 +# define SM2_F_PKEY_SM2_INIT 111 +# define SM2_F_PKEY_SM2_SIGN 112 +# define SM2_F_SM2_COMPUTE_KEY 116 +# define SM2_F_SM2_COMPUTE_MSG_HASH 100 +# define SM2_F_SM2_COMPUTE_USERID_DIGEST 101 +# define SM2_F_SM2_COMPUTE_Z_DIGEST 113 +# define SM2_F_SM2_DECRYPT 102 +# define SM2_F_SM2_ENCRYPT 103 +# define SM2_F_SM2_PLAINTEXT_SIZE 104 +# define SM2_F_SM2_SIGN 105 +# define SM2_F_SM2_SIG_GEN 106 +# define SM2_F_SM2_SIG_VERIFY 107 +# define SM2_F_SM2_VERIFY 108 + +/* + * SM2 reason codes. + */ +# define SM2_R_ASN1_ERROR 100 +# define SM2_R_BAD_SIGNATURE 101 +# define SM2_R_BUFFER_TOO_SMALL 107 +# define SM2_R_DIST_ID_TOO_LARGE 110 +# define SM2_R_ID_NOT_SET 112 +# define SM2_R_ID_TOO_LARGE 111 +# define SM2_R_INVALID_CURVE 108 +# define SM2_R_INVALID_DIGEST 102 +# define SM2_R_INVALID_DIGEST_TYPE 103 +# define SM2_R_INVALID_ENCODING 104 +# define SM2_R_INVALID_FIELD 105 +# define SM2_R_NO_PARAMETERS_SET 109 +# define SM2_R_NO_PRIVATE_VALUE 113 +# define SM2_R_USER_ID_TOO_LARGE 106 + +# endif +#endif diff --git a/Cryptlib/Include/openssl/sm3.h b/Cryptlib/Include/openssl/sm3.h new file mode 100644 index 0000000..97e7460 --- /dev/null +++ b/Cryptlib/Include/openssl/sm3.h @@ -0,0 +1,39 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017 Ribose Inc. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#ifndef OSSL_CRYPTO_SM3_H +# define OSSL_CRYPTO_SM3_H + +# include + +# ifdef OPENSSL_NO_SM3 +# error SM3 is disabled. +# endif + +# define SM3_DIGEST_LENGTH 32 +# define SM3_WORD unsigned int + +# define SM3_CBLOCK 64 +# define SM3_LBLOCK (SM3_CBLOCK/4) + +typedef struct SM3state_st { + SM3_WORD A, B, C, D, E, F, G, H; + SM3_WORD Nl, Nh; + SM3_WORD data[SM3_LBLOCK]; + unsigned int num; +} SM3_CTX; + +int sm3_init(SM3_CTX *c); +int sm3_update(SM3_CTX *c, const void *data, size_t len); +int sm3_final(unsigned char *md, SM3_CTX *c); + +void sm3_block_data_order(SM3_CTX *c, const void *p, size_t num); + +#endif diff --git a/Cryptlib/Include/openssl/x509.h b/Cryptlib/Include/openssl/x509.h index 6fa28eb..eda456b 100644 --- a/Cryptlib/Include/openssl/x509.h +++ b/Cryptlib/Include/openssl/x509.h @@ -237,6 +237,9 @@ typedef struct X509_req_st { X509_ALGOR *sig_alg; ASN1_BIT_STRING *signature; int references; +# ifndef OPENSSL_NO_SM2 + ASN1_OCTET_STRING *sm2_id; +# endif } X509_REQ; typedef struct x509_cinf_st { @@ -296,6 +299,10 @@ struct x509_st { unsigned char sha1_hash[SHA_DIGEST_LENGTH]; # endif X509_CERT_AUX *aux; + volatile int ex_cached; +# ifndef OPENSSL_NO_SM2 + ASN1_OCTET_STRING *sm2_id; +# endif } /* X509 */ ; DECLARE_STACK_OF(X509) diff --git a/Cryptlib/Library/BaseCryptLib.h b/Cryptlib/Library/BaseCryptLib.h index 2df8bd2..a7fea2c 100644 --- a/Cryptlib/Library/BaseCryptLib.h +++ b/Cryptlib/Library/BaseCryptLib.h @@ -52,6 +52,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. /// #define SHA512_DIGEST_SIZE 64 +/// +/// SM3 digest size in bytes +/// +#define SM3_DIGEST_SIZE 32 + /// /// TDES block size in bytes /// @@ -893,6 +898,112 @@ Sha512HashAll ( OUT UINT8 *HashValue ); +/** + Retrieves the size, in bytes, of the context buffer required for SM3 hash operations. + @return The size, in bytes, of the context buffer required for SM3 hash operations. +**/ +UINTN +EFIAPI +Sm3GetContextSize ( + VOID + ); + +/** + Initializes user-supplied memory pointed by Sm3Context as SM3 hash context for + subsequent use. + If Sm3Context is NULL, then return FALSE. + @param[out] Sm3Context Pointer to SM3 context being initialized. + @retval TRUE SM3 context initialization succeeded. + @retval FALSE SM3 context initialization failed. +**/ +BOOLEAN +EFIAPI +Sm3Init ( + OUT VOID *Sm3Context + ); + +/** + Makes a copy of an existing SM3 context. + If Sm3Context is NULL, then return FALSE. + If NewSm3Context is NULL, then return FALSE. + If this interface is not supported, then return FALSE. + @param[in] Sm3Context Pointer to SM3 context being copied. + @param[out] NewSm3Context Pointer to new SM3 context. + @retval TRUE SM3 context copy succeeded. + @retval FALSE SM3 context copy failed. + @retval FALSE This interface is not supported. +**/ +BOOLEAN +EFIAPI +Sm3Duplicate ( + IN CONST VOID *Sm3Context, + OUT VOID *NewSm3Context + ); + +/** + Digests the input data and updates SM3 context. + This function performs SM3 digest on a data buffer of the specified size. + It can be called multiple times to compute the digest of long or discontinuous data streams. + SM3 context should be already correctly initialized by Sm3Init(), and should not be finalied + by Sm3Final(). Behavior with invalid context is undefined. + If Sm3Context is NULL, then return FALSE. + @param[in, out] Sm3Context Pointer to the SM3 context. + @param[in] Data Pointer to the buffer containing the data to be hashed. + @param[in] DataSize Size of Data buffer in bytes. + @retval TRUE SM3 data digest succeeded. + @retval FALSE SM3 data digest failed. +**/ +BOOLEAN +EFIAPI +Sm3Update ( + IN OUT VOID *Sm3Context, + IN CONST VOID *Data, + IN UINTN DataSize + ); + +/** + Completes computation of the SM3 digest value. + This function completes SM3 hash computation and retrieves the digest value into + the specified memory. After this function has been called, the SM3 context cannot + be used again. + SM3 context should be already correctly initialized by Sm3Init(), and should not be + finalized by Sm3Final(). Behavior with invalid SM3 context is undefined. + If Sm3Context is NULL, then return FALSE. + If HashValue is NULL, then return FALSE. + @param[in, out] Sm3Context Pointer to the SM3 context. + @param[out] HashValue Pointer to a buffer that receives the SM3 digest + value (32 bytes). + @retval TRUE SM3 digest computation succeeded. + @retval FALSE SM3 digest computation failed. +**/ +BOOLEAN +EFIAPI +Sm3Final ( + IN OUT VOID *Sm3Context, + OUT UINT8 *HashValue + ); + +/** + Computes the SM3 message digest of a input data buffer. + This function performs the SM3 message digest of a given data buffer, and places + the digest value into the specified memory. + If this interface is not supported, then return FALSE. + @param[in] Data Pointer to the buffer containing the data to be hashed. + @param[in] DataSize Size of Data buffer in bytes. + @param[out] HashValue Pointer to a buffer that receives the SM3 digest + value (32 bytes). + @retval TRUE SM3 digest computation succeeded. + @retval FALSE SM3 digest computation failed. + @retval FALSE This interface is not supported. +**/ +BOOLEAN +EFIAPI +Sm3HashAll ( + IN CONST VOID *Data, + IN UINTN DataSize, + OUT UINT8 *HashValue + ); + //===================================================================================== // MAC (Message Authentication Code) Primitive //===================================================================================== diff --git a/Cryptlib/Makefile b/Cryptlib/Makefile index 89fd5cd..7885a1a 100644 --- a/Cryptlib/Makefile +++ b/Cryptlib/Makefile @@ -66,6 +66,12 @@ OBJS = Hash/CryptMd4Null.o \ SysCall/BaseMemAllocation.o \ SysCall/BaseStrings.o +ifdef SHIM_ENABLE_SM +OBJS += Hash/CryptSm3.o +else +DEFINES += -DOPENSSL_NO_SM3 +endif + all: $(TARGET) libcryptlib.a: $(OBJS) diff --git a/Cryptlib/OpenSSL/Makefile b/Cryptlib/OpenSSL/Makefile index 795f471..32fb235 100644 --- a/Cryptlib/OpenSSL/Makefile +++ b/Cryptlib/OpenSSL/Makefile @@ -459,7 +459,43 @@ OBJS = crypto/cryptlib.o \ crypto/ocsp/ocsp_err.o \ crypto/cmac/cmac.o \ crypto/cmac/cm_ameth.o \ - crypto/cmac/cm_pmeth.o \ + crypto/cmac/cm_pmeth.o + +ifdef SHIM_ENABLE_SM +OBJS +=crypto/ec/ec_ameth.o \ + crypto/ec/ec_cvt.o \ + crypto/ec/eck_prn.o \ + crypto/ec/ec_oct.o \ + crypto/ec/ecp_smpl.o \ + crypto/ec/ec_asn1.o \ + crypto/ec/ec_err.o \ + crypto/ec/ec_pmeth.o \ + crypto/ec/ec_check.o \ + crypto/ec/ec_lib.o \ + crypto/ec/ecp_mont.o \ + crypto/ec/ecp_oct.o \ + crypto/ec/ec_curve.o \ + crypto/ec/ec_key.o \ + crypto/ec/ec_mult.o \ + crypto/ec/ecp_nist.o \ + crypto/ec/ec_print.o \ + crypto/ecdsa/ecs_asn1.o \ + crypto/ecdsa/ecs_err.o \ + crypto/ecdsa/ecs_lib.o \ + crypto/ecdsa/ecs_ossl.o \ + crypto/ecdsa/ecs_sign.o \ + crypto/ecdsa/ecs_vrf.o \ + crypto/sm3/sm3.o \ + crypto/sm3/m_sm3.o \ + crypto/sm2/sm2_err.o \ + crypto/sm2/sm2_pmeth.o \ + crypto/sm2/sm2_sign.o +else +DEFINES +=-DOPENSSL_NO_EC \ + -DOPENSSL_NO_ECDSA \ + -DOPENSSL_NO_SM2 \ + -DOPENSSL_NO_SM3 +endif all: $(TARGET) diff --git a/Cryptlib/OpenSSL/crypto/asn1/a_sign.c b/Cryptlib/OpenSSL/crypto/asn1/a_sign.c index 51c6a0c..68a2ae6 100644 --- a/Cryptlib/OpenSSL/crypto/asn1/a_sign.c +++ b/Cryptlib/OpenSSL/crypto/asn1/a_sign.c @@ -238,7 +238,7 @@ int ASN1_item_sign_ctx(const ASN1_ITEM *it, unsigned char *buf_in = NULL, *buf_out = NULL; size_t inl = 0, outl = 0, outll = 0; int signid, paramtype; - int rv; + int rv, pkey_id; type = EVP_MD_CTX_md(ctx); pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx); @@ -268,10 +268,17 @@ int ASN1_item_sign_ctx(const ASN1_ITEM *it, if (rv == 2) { if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) { + + pkey_id = +#ifndef OPENSSL_NO_SM2 + EVP_PKEY_id(pkey) == NID_sm2 ? NID_sm2 : +#endif + pkey->ameth->pkey_id; + if (!pkey->ameth || !OBJ_find_sigid_by_algs(&signid, EVP_MD_nid(type), - pkey->ameth->pkey_id)) { + pkey_id)) { ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED); return 0; diff --git a/Cryptlib/OpenSSL/crypto/asn1/ameth_lib.c b/Cryptlib/OpenSSL/crypto/asn1/ameth_lib.c index 43ddebb..db3d27d 100644 --- a/Cryptlib/OpenSSL/crypto/asn1/ameth_lib.c +++ b/Cryptlib/OpenSSL/crypto/asn1/ameth_lib.c @@ -64,6 +64,7 @@ # include #endif #include "asn1_locl.h" +#include extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[]; extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[]; @@ -72,6 +73,8 @@ extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth; extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth; extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth; extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth; +extern const EVP_PKEY_ASN1_METHOD sm2_asn1_meth; + /* Keep this sorted in type order !! */ static const EVP_PKEY_ASN1_METHOD *standard_methods[] = { @@ -97,7 +100,10 @@ static const EVP_PKEY_ASN1_METHOD *standard_methods[] = { &cmac_asn1_meth, #endif #ifndef OPENSSL_NO_DH - &dhx_asn1_meth + &dhx_asn1_meth, +#endif +#ifndef OPENSSL_NO_SM2 + &sm2_asn1_meth, #endif }; diff --git a/Cryptlib/OpenSSL/crypto/asn1/x_req.c b/Cryptlib/OpenSSL/crypto/asn1/x_req.c index ae293aa..575564e 100644 --- a/Cryptlib/OpenSSL/crypto/asn1/x_req.c +++ b/Cryptlib/OpenSSL/crypto/asn1/x_req.c @@ -114,3 +114,16 @@ ASN1_SEQUENCE_ref(X509_REQ, 0, CRYPTO_LOCK_X509_REQ) = { IMPLEMENT_ASN1_FUNCTIONS(X509_REQ) IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ) + +#ifndef OPENSSL_NO_SM2 +void X509_REQ_set0_sm2_id(X509_REQ *x, ASN1_OCTET_STRING *sm2_id) +{ + ASN1_OCTET_STRING_free(x->sm2_id); + x->sm2_id = sm2_id; +} + +ASN1_OCTET_STRING *X509_REQ_get0_sm2_id(X509_REQ *x) +{ + return x->sm2_id; +} +#endif diff --git a/Cryptlib/OpenSSL/crypto/asn1/x_x509.c b/Cryptlib/OpenSSL/crypto/asn1/x_x509.c index aada4a8..8969918 100644 --- a/Cryptlib/OpenSSL/crypto/asn1/x_x509.c +++ b/Cryptlib/OpenSSL/crypto/asn1/x_x509.c @@ -98,6 +98,9 @@ static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, #ifndef OPENSSL_NO_RFC3779 ret->rfc3779_addr = NULL; ret->rfc3779_asid = NULL; +#endif +#ifndef OPENSSL_NO_SM2 + ret->sm2_id = NULL; #endif ret->aux = NULL; ret->crldp = NULL; @@ -123,6 +126,9 @@ static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free); ASIdentifiers_free(ret->rfc3779_asid); #endif +#ifndef OPENSSL_NO_SM2 + ASN1_OCTET_STRING_free(ret->sm2_id); +#endif if (ret->name != NULL) OPENSSL_free(ret->name); diff --git a/Cryptlib/OpenSSL/crypto/bn/bn_lib.c b/Cryptlib/OpenSSL/crypto/bn/bn_lib.c index 2671f35..10b78f5 100644 --- a/Cryptlib/OpenSSL/crypto/bn/bn_lib.c +++ b/Cryptlib/OpenSSL/crypto/bn/bn_lib.c @@ -496,9 +496,6 @@ BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b) if (bn_wexpand(a, b->top) == NULL) return (NULL); - if (!a || !b || !a->d || !b->d) - return (NULL); - #if 1 A = a->d; B = b->d; diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_ameth.c b/Cryptlib/OpenSSL/crypto/ec/ec_ameth.c new file mode 100644 index 0000000..d55dcca --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_ameth.c @@ -0,0 +1,646 @@ +/* + * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project + * 2006. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "cryptlib.h" +#include +#include +#include +#include +#include "asn1_locl.h" +#include "ec_lcl.h" + +#ifndef OPENSSL_NO_SM2 +const EVP_PKEY_ASN1_METHOD sm2_asn1_meth = { + EVP_PKEY_SM2, + EVP_PKEY_EC, + ASN1_PKEY_ALIAS +}; +#endif + +extern UINTN EFIAPI console_print(const CHAR16 *fmt, ...); + +static int eckey_param2type(int *pptype, void **ppval, EC_KEY *ec_key) +{ + const EC_GROUP *group; + int nid; + if (ec_key == NULL || (group = EC_KEY_get0_group(ec_key)) == NULL) { + ECerr(EC_F_ECKEY_PARAM2TYPE, EC_R_MISSING_PARAMETERS); + return 0; + } + if (EC_GROUP_get_asn1_flag(group) + && (nid = EC_GROUP_get_curve_name(group))) + /* we have a 'named curve' => just set the OID */ + { + *ppval = OBJ_nid2obj(nid); + *pptype = V_ASN1_OBJECT; + } else { /* explicit parameters */ + + ASN1_STRING *pstr = NULL; + pstr = ASN1_STRING_new(); + if (!pstr) + return 0; + pstr->length = i2d_ECParameters(ec_key, &pstr->data); + if (pstr->length <= 0) { + ASN1_STRING_free(pstr); + ECerr(EC_F_ECKEY_PARAM2TYPE, ERR_R_EC_LIB); + return 0; + } + *ppval = pstr; + *pptype = V_ASN1_SEQUENCE; + } + return 1; +} + +static int eckey_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) +{ + EC_KEY *ec_key = pkey->pkey.ec; + void *pval = NULL; + int ptype; + unsigned char *penc = NULL, *p; + int penclen; + + if (!eckey_param2type(&ptype, &pval, ec_key)) { + ECerr(EC_F_ECKEY_PUB_ENCODE, ERR_R_EC_LIB); + return 0; + } + penclen = i2o_ECPublicKey(ec_key, NULL); + if (penclen <= 0) + goto err; + penc = OPENSSL_malloc(penclen); + if (!penc) + goto err; + p = penc; + penclen = i2o_ECPublicKey(ec_key, &p); + if (penclen <= 0) + goto err; + if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_EC), + ptype, pval, penc, penclen)) + return 1; + err: + if (ptype == V_ASN1_OBJECT) + ASN1_OBJECT_free(pval); + else + ASN1_STRING_free(pval); + if (penc) + OPENSSL_free(penc); + return 0; +} + +static EC_KEY *eckey_type2param(int ptype, void *pval) +{ + EC_KEY *eckey = NULL; + if (ptype == V_ASN1_SEQUENCE) { + ASN1_STRING *pstr = pval; + const unsigned char *pm = NULL; + int pmlen; + pm = pstr->data; + pmlen = pstr->length; + if (!(eckey = d2i_ECParameters(NULL, &pm, pmlen))) { + ECerr(EC_F_ECKEY_TYPE2PARAM, EC_R_DECODE_ERROR); + goto ecerr; + } + } else if (ptype == V_ASN1_OBJECT) { + ASN1_OBJECT *poid = pval; + EC_GROUP *group; + + /* + * type == V_ASN1_OBJECT => the parameters are given by an asn1 OID + */ + if ((eckey = EC_KEY_new()) == NULL) { + ECerr(EC_F_ECKEY_TYPE2PARAM, ERR_R_MALLOC_FAILURE); + goto ecerr; + } + group = EC_GROUP_new_by_curve_name(OBJ_obj2nid(poid)); + if (group == NULL){ + goto ecerr;} + EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE); + if (EC_KEY_set_group(eckey, group) == 0) { + goto ecerr; + } + EC_GROUP_free(group); + } else { + ECerr(EC_F_ECKEY_TYPE2PARAM, EC_R_DECODE_ERROR); + goto ecerr; + } + + return eckey; + + ecerr: + if (eckey) + EC_KEY_free(eckey); + return NULL; +} + +static int eckey_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) +{ + const unsigned char *p = NULL; + void *pval; + int ptype, pklen; + EC_KEY *eckey = NULL; + X509_ALGOR *palg; + + if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey)) + return 0; + X509_ALGOR_get0(NULL, &ptype, &pval, palg); + + eckey = eckey_type2param(ptype, pval); + + if (!eckey) { + ECerr(EC_F_ECKEY_PUB_DECODE, ERR_R_EC_LIB); + return 0; + } + + /* We have parameters now set public key */ + if (!o2i_ECPublicKey(&eckey, &p, pklen)) { + ECerr(EC_F_ECKEY_PUB_DECODE, EC_R_DECODE_ERROR); + goto ecerr; + } + + EVP_PKEY_assign_EC_KEY(pkey, eckey); + return 1; + + ecerr: + if (eckey) + EC_KEY_free(eckey); + return 0; +} + +static int eckey_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) +{ + int r; + const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec); + const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec), + *pb = EC_KEY_get0_public_key(b->pkey.ec); + if (group == NULL || pa == NULL || pb == NULL) + return -2; + r = EC_POINT_cmp(group, pa, pb, NULL); + if (r == 0) + return 1; + if (r == 1) + return 0; + return -2; +} + +static int eckey_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) +{ + const unsigned char *p = NULL; + void *pval; + int ptype, pklen; + EC_KEY *eckey = NULL; + X509_ALGOR *palg; + + if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) + return 0; + X509_ALGOR_get0(NULL, &ptype, &pval, palg); + + eckey = eckey_type2param(ptype, pval); + + if (!eckey) + goto ecliberr; + + /* We have parameters now set private key */ + if (!d2i_ECPrivateKey(&eckey, &p, pklen)) { + ECerr(EC_F_ECKEY_PRIV_DECODE, EC_R_DECODE_ERROR); + goto ecerr; + } + + /* calculate public key (if necessary) */ + if (EC_KEY_get0_public_key(eckey) == NULL) { + const BIGNUM *priv_key; + const EC_GROUP *group; + EC_POINT *pub_key; + /* + * the public key was not included in the SEC1 private key => + * calculate the public key + */ + group = EC_KEY_get0_group(eckey); + pub_key = EC_POINT_new(group); + if (pub_key == NULL) { + ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB); + goto ecliberr; + } + if (!EC_POINT_copy(pub_key, EC_GROUP_get0_generator(group))) { + EC_POINT_free(pub_key); + ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB); + goto ecliberr; + } + priv_key = EC_KEY_get0_private_key(eckey); + if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, NULL)) { + EC_POINT_free(pub_key); + ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB); + goto ecliberr; + } + if (EC_KEY_set_public_key(eckey, pub_key) == 0) { + EC_POINT_free(pub_key); + ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB); + goto ecliberr; + } + EC_POINT_free(pub_key); + } + + EVP_PKEY_assign_EC_KEY(pkey, eckey); + return 1; + + ecliberr: + ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB); + ecerr: + if (eckey) + EC_KEY_free(eckey); + return 0; +} + +static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) +{ + EC_KEY ec_key = *(pkey->pkey.ec); + unsigned char *ep, *p; + int eplen, ptype; + void *pval; + unsigned int old_flags; + + if (!eckey_param2type(&ptype, &pval, &ec_key)) { + ECerr(EC_F_ECKEY_PRIV_ENCODE, EC_R_DECODE_ERROR); + return 0; + } + + /* set the private key */ + + /* + * do not include the parameters in the SEC1 private key see PKCS#11 + * 12.11 + */ + old_flags = EC_KEY_get_enc_flags(&ec_key); + EC_KEY_set_enc_flags(&ec_key, old_flags | EC_PKEY_NO_PARAMETERS); + + eplen = i2d_ECPrivateKey(&ec_key, NULL); + if (!eplen) { + ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB); + return 0; + } + ep = (unsigned char *)OPENSSL_malloc(eplen); + if (!ep) { + ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_MALLOC_FAILURE); + return 0; + } + p = ep; + if (!i2d_ECPrivateKey(&ec_key, &p)) { + OPENSSL_free(ep); + ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB); + return 0; + } + + if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_X9_62_id_ecPublicKey), 0, + ptype, pval, ep, eplen)) + return 0; + + return 1; +} + +static int int_ec_size(const EVP_PKEY *pkey) +{ + return ECDSA_size(pkey->pkey.ec); +} + +static int ec_bits(const EVP_PKEY *pkey) +{ + BIGNUM *order = BN_new(); + const EC_GROUP *group; + int ret; + + if (!order) { + ERR_clear_error(); + return 0; + } + group = EC_KEY_get0_group(pkey->pkey.ec); + if (!EC_GROUP_get_order(group, order, NULL)) { + ERR_clear_error(); + return 0; + } + + ret = BN_num_bits(order); + BN_free(order); + return ret; +} + +static int ec_missing_parameters(const EVP_PKEY *pkey) +{ + if (pkey->pkey.ec == NULL || EC_KEY_get0_group(pkey->pkey.ec) == NULL) + return 1; + return 0; +} + +static int ec_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) +{ + EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec)); + if (group == NULL) + return 0; + if (EC_KEY_set_group(to->pkey.ec, group) == 0) + return 0; + EC_GROUP_free(group); + return 1; +} + +static int ec_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) +{ + const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec), + *group_b = EC_KEY_get0_group(b->pkey.ec); + if (group_a == NULL || group_b == NULL) + return -2; + if (EC_GROUP_cmp(group_a, group_b, NULL)) + return 0; + else + return 1; +} + +static void int_ec_free(EVP_PKEY *pkey) +{ + EC_KEY_free(pkey->pkey.ec); +} + +static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype) +{ + unsigned char *buffer = NULL; + const char *ecstr; + size_t buf_len = 0, i; + int ret = 0, reason = ERR_R_BIO_LIB; + BIGNUM *pub_key = NULL, *order = NULL; + BN_CTX *ctx = NULL; + const EC_GROUP *group; + const EC_POINT *public_key; + const BIGNUM *priv_key; + + if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL) { + reason = ERR_R_PASSED_NULL_PARAMETER; + goto err; + } + + ctx = BN_CTX_new(); + if (ctx == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + + if (ktype > 0) { + public_key = EC_KEY_get0_public_key(x); + if (public_key != NULL) { + if ((pub_key = EC_POINT_point2bn(group, public_key, + EC_KEY_get_conv_form(x), NULL, + ctx)) == NULL) { + reason = ERR_R_EC_LIB; + goto err; + } + buf_len = (size_t)BN_num_bytes(pub_key); + } + } + + if (ktype == 2) { + priv_key = EC_KEY_get0_private_key(x); + if (priv_key && (i = (size_t)BN_num_bytes(priv_key)) > buf_len) + buf_len = i; + } else + priv_key = NULL; + + if (ktype > 0) { + buf_len += 10; + if ((buffer = OPENSSL_malloc(buf_len)) == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + } + if (ktype == 2) + ecstr = "Private-Key"; + else if (ktype == 1) + ecstr = "Public-Key"; + else + ecstr = "ECDSA-Parameters"; + + if (!BIO_indent(bp, off, 128)) + goto err; + if ((order = BN_new()) == NULL) + goto err; + if (!EC_GROUP_get_order(group, order, NULL)) + goto err; + if (BIO_printf(bp, "%s: (%d bit)\n", ecstr, BN_num_bits(order)) <= 0) + goto err; + + if ((priv_key != NULL) && !ASN1_bn_print(bp, "priv:", priv_key, + buffer, off)) + goto err; + if ((pub_key != NULL) && !ASN1_bn_print(bp, "pub: ", pub_key, + buffer, off)) + goto err; + if (!ECPKParameters_print(bp, group, off)) + goto err; + ret = 1; + err: + if (!ret) + ECerr(EC_F_DO_EC_KEY_PRINT, reason); + if (pub_key) + BN_free(pub_key); + if (order) + BN_free(order); + if (ctx) + BN_CTX_free(ctx); + if (buffer != NULL) + OPENSSL_free(buffer); + return (ret); +} + +static int eckey_param_decode(EVP_PKEY *pkey, + const unsigned char **pder, int derlen) +{ + EC_KEY *eckey; + if (!(eckey = d2i_ECParameters(NULL, pder, derlen))) { + ECerr(EC_F_ECKEY_PARAM_DECODE, ERR_R_EC_LIB); + return 0; + } + EVP_PKEY_assign_EC_KEY(pkey, eckey); + return 1; +} + +static int eckey_param_encode(const EVP_PKEY *pkey, unsigned char **pder) +{ + return i2d_ECParameters(pkey->pkey.ec, pder); +} + +static int eckey_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) +{ + return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 0); +} + +static int eckey_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) +{ + return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 1); +} + +static int eckey_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) +{ + return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 2); +} + +static int old_ec_priv_decode(EVP_PKEY *pkey, + const unsigned char **pder, int derlen) +{ + EC_KEY *ec; + if (!(ec = d2i_ECPrivateKey(NULL, pder, derlen))) { + ECerr(EC_F_OLD_EC_PRIV_DECODE, EC_R_DECODE_ERROR); + return 0; + } + EVP_PKEY_assign_EC_KEY(pkey, ec); + return 1; +} + +static int old_ec_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) +{ + return i2d_ECPrivateKey(pkey->pkey.ec, pder); +} + +static int ec_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) +{ + switch (op) { + case ASN1_PKEY_CTRL_PKCS7_SIGN: + if (arg1 == 0) { + int snid, hnid; + X509_ALGOR *alg1, *alg2; + PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2); + if (alg1 == NULL || alg1->algorithm == NULL) + return -1; + hnid = OBJ_obj2nid(alg1->algorithm); + if (hnid == NID_undef) + return -1; + if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey))) + return -1; + X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0); + } + return 1; +#ifndef OPENSSL_NO_CMS + case ASN1_PKEY_CTRL_CMS_SIGN: + if (arg1 == 0) { + int snid, hnid; + X509_ALGOR *alg1, *alg2; + CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2); + if (alg1 == NULL || alg1->algorithm == NULL) + return -1; + hnid = OBJ_obj2nid(alg1->algorithm); + if (hnid == NID_undef) + return -1; + if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey))) + return -1; + X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0); + } + return 1; + + case ASN1_PKEY_CTRL_CMS_ENVELOPE: + if (arg1 == 1) + return ecdh_cms_decrypt(arg2); + else if (arg1 == 0) + return ecdh_cms_encrypt(arg2); + return -2; + + case ASN1_PKEY_CTRL_CMS_RI_TYPE: + *(int *)arg2 = CMS_RECIPINFO_AGREE; + return 1; +#endif + + case ASN1_PKEY_CTRL_DEFAULT_MD_NID: + /* For SM2, the only valid digest-alg is SM3 */ + *(int *)arg2 = NID_sm3; + return 1; + + default: + return -2; + + } + +} + +const EVP_PKEY_ASN1_METHOD eckey_asn1_meth = { + EVP_PKEY_EC, + EVP_PKEY_EC, + 0, + "EC", + "OpenSSL EC algorithm", + + eckey_pub_decode, + eckey_pub_encode, + eckey_pub_cmp, + eckey_pub_print, + + eckey_priv_decode, + eckey_priv_encode, + eckey_priv_print, + + int_ec_size, + ec_bits, + + eckey_param_decode, + eckey_param_encode, + ec_missing_parameters, + ec_copy_parameters, + ec_cmp_parameters, + eckey_param_print, + 0, + + int_ec_free, + ec_pkey_ctrl, + old_ec_priv_decode, + old_ec_priv_encode +}; diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_asn1.c b/Cryptlib/OpenSSL/crypto/ec/ec_asn1.c new file mode 100644 index 0000000..cc0ce8e --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_asn1.c @@ -0,0 +1,1278 @@ +/* crypto/ec/ec_asn1.c */ +/* + * Written by Nils Larsch for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 2000-2003 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "ec_lcl.h" +#include +#include +#include + +int EC_GROUP_get_basis_type(const EC_GROUP *group) +{ + int i = 0; + + if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) != + NID_X9_62_characteristic_two_field) + /* everything else is currently not supported */ + return 0; + + while (group->poly[i] != 0) + i++; + + if (i == 4) + return NID_X9_62_ppBasis; + else if (i == 2) + return NID_X9_62_tpBasis; + else + /* everything else is currently not supported */ + return 0; +} + +/* some structures needed for the asn1 encoding */ +typedef struct x9_62_pentanomial_st { + long k1; + long k2; + long k3; +} X9_62_PENTANOMIAL; + +typedef struct x9_62_characteristic_two_st { + long m; + ASN1_OBJECT *type; + union { + char *ptr; + /* NID_X9_62_onBasis */ + ASN1_NULL *onBasis; + /* NID_X9_62_tpBasis */ + ASN1_INTEGER *tpBasis; + /* NID_X9_62_ppBasis */ + X9_62_PENTANOMIAL *ppBasis; + /* anything else */ + ASN1_TYPE *other; + } p; +} X9_62_CHARACTERISTIC_TWO; + +typedef struct x9_62_fieldid_st { + ASN1_OBJECT *fieldType; + union { + char *ptr; + /* NID_X9_62_prime_field */ + ASN1_INTEGER *prime; + /* NID_X9_62_characteristic_two_field */ + X9_62_CHARACTERISTIC_TWO *char_two; + /* anything else */ + ASN1_TYPE *other; + } p; +} X9_62_FIELDID; + +typedef struct x9_62_curve_st { + ASN1_OCTET_STRING *a; + ASN1_OCTET_STRING *b; + ASN1_BIT_STRING *seed; +} X9_62_CURVE; + +typedef struct ec_parameters_st { + long version; + X9_62_FIELDID *fieldID; + X9_62_CURVE *curve; + ASN1_OCTET_STRING *base; + ASN1_INTEGER *order; + ASN1_INTEGER *cofactor; +} ECPARAMETERS; + +struct ecpk_parameters_st { + int type; + union { + ASN1_OBJECT *named_curve; + ECPARAMETERS *parameters; + ASN1_NULL *implicitlyCA; + } value; +} /* ECPKPARAMETERS */ ; + +/* SEC1 ECPrivateKey */ +typedef struct ec_privatekey_st { + long version; + ASN1_OCTET_STRING *privateKey; + ECPKPARAMETERS *parameters; + ASN1_BIT_STRING *publicKey; +} EC_PRIVATEKEY; + +/* the OpenSSL ASN.1 definitions */ +ASN1_SEQUENCE(X9_62_PENTANOMIAL) = { + ASN1_SIMPLE(X9_62_PENTANOMIAL, k1, LONG), + ASN1_SIMPLE(X9_62_PENTANOMIAL, k2, LONG), + ASN1_SIMPLE(X9_62_PENTANOMIAL, k3, LONG) +} ASN1_SEQUENCE_END(X9_62_PENTANOMIAL) + +DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL) +IMPLEMENT_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL) + +ASN1_ADB_TEMPLATE(char_two_def) = ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.other, ASN1_ANY); + +ASN1_ADB(X9_62_CHARACTERISTIC_TWO) = { + ADB_ENTRY(NID_X9_62_onBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.onBasis, ASN1_NULL)), + ADB_ENTRY(NID_X9_62_tpBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.tpBasis, ASN1_INTEGER)), + ADB_ENTRY(NID_X9_62_ppBasis, ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, p.ppBasis, X9_62_PENTANOMIAL)) +} ASN1_ADB_END(X9_62_CHARACTERISTIC_TWO, 0, type, 0, &char_two_def_tt, NULL); + +ASN1_SEQUENCE(X9_62_CHARACTERISTIC_TWO) = { + ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, m, LONG), + ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, type, ASN1_OBJECT), + ASN1_ADB_OBJECT(X9_62_CHARACTERISTIC_TWO) +} ASN1_SEQUENCE_END(X9_62_CHARACTERISTIC_TWO) + +DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO) +IMPLEMENT_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO) + +ASN1_ADB_TEMPLATE(fieldID_def) = ASN1_SIMPLE(X9_62_FIELDID, p.other, ASN1_ANY); + +ASN1_ADB(X9_62_FIELDID) = { + ADB_ENTRY(NID_X9_62_prime_field, ASN1_SIMPLE(X9_62_FIELDID, p.prime, ASN1_INTEGER)), + ADB_ENTRY(NID_X9_62_characteristic_two_field, ASN1_SIMPLE(X9_62_FIELDID, p.char_two, X9_62_CHARACTERISTIC_TWO)) +} ASN1_ADB_END(X9_62_FIELDID, 0, fieldType, 0, &fieldID_def_tt, NULL); + +ASN1_SEQUENCE(X9_62_FIELDID) = { + ASN1_SIMPLE(X9_62_FIELDID, fieldType, ASN1_OBJECT), + ASN1_ADB_OBJECT(X9_62_FIELDID) +} ASN1_SEQUENCE_END(X9_62_FIELDID) + +ASN1_SEQUENCE(X9_62_CURVE) = { + ASN1_SIMPLE(X9_62_CURVE, a, ASN1_OCTET_STRING), + ASN1_SIMPLE(X9_62_CURVE, b, ASN1_OCTET_STRING), + ASN1_OPT(X9_62_CURVE, seed, ASN1_BIT_STRING) +} ASN1_SEQUENCE_END(X9_62_CURVE) + +ASN1_SEQUENCE(ECPARAMETERS) = { + ASN1_SIMPLE(ECPARAMETERS, version, LONG), + ASN1_SIMPLE(ECPARAMETERS, fieldID, X9_62_FIELDID), + ASN1_SIMPLE(ECPARAMETERS, curve, X9_62_CURVE), + ASN1_SIMPLE(ECPARAMETERS, base, ASN1_OCTET_STRING), + ASN1_SIMPLE(ECPARAMETERS, order, ASN1_INTEGER), + ASN1_OPT(ECPARAMETERS, cofactor, ASN1_INTEGER) +} ASN1_SEQUENCE_END(ECPARAMETERS) + +DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) +IMPLEMENT_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) + +ASN1_CHOICE(ECPKPARAMETERS) = { + ASN1_SIMPLE(ECPKPARAMETERS, value.named_curve, ASN1_OBJECT), + ASN1_SIMPLE(ECPKPARAMETERS, value.parameters, ECPARAMETERS), + ASN1_SIMPLE(ECPKPARAMETERS, value.implicitlyCA, ASN1_NULL) +} ASN1_CHOICE_END(ECPKPARAMETERS) + +DECLARE_ASN1_FUNCTIONS_const(ECPKPARAMETERS) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECPKPARAMETERS, ECPKPARAMETERS) +IMPLEMENT_ASN1_FUNCTIONS_const(ECPKPARAMETERS) + +ASN1_SEQUENCE(EC_PRIVATEKEY) = { + ASN1_SIMPLE(EC_PRIVATEKEY, version, LONG), + ASN1_SIMPLE(EC_PRIVATEKEY, privateKey, ASN1_OCTET_STRING), + ASN1_EXP_OPT(EC_PRIVATEKEY, parameters, ECPKPARAMETERS, 0), + ASN1_EXP_OPT(EC_PRIVATEKEY, publicKey, ASN1_BIT_STRING, 1) +} ASN1_SEQUENCE_END(EC_PRIVATEKEY) + +DECLARE_ASN1_FUNCTIONS_const(EC_PRIVATEKEY) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(EC_PRIVATEKEY, EC_PRIVATEKEY) +IMPLEMENT_ASN1_FUNCTIONS_const(EC_PRIVATEKEY) + +/* some declarations of internal function */ + +/* ec_asn1_group2field() sets the values in a X9_62_FIELDID object */ +static int ec_asn1_group2fieldid(const EC_GROUP *, X9_62_FIELDID *); +/* ec_asn1_group2curve() sets the values in a X9_62_CURVE object */ +static int ec_asn1_group2curve(const EC_GROUP *, X9_62_CURVE *); +/* + * ec_asn1_parameters2group() creates a EC_GROUP object from a ECPARAMETERS + * object + */ +static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *); +/* + * ec_asn1_group2parameters() creates a ECPARAMETERS object from a EC_GROUP + * object + */ +static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *, + ECPARAMETERS *); +/* + * ec_asn1_pkparameters2group() creates a EC_GROUP object from a + * ECPKPARAMETERS object + */ +static EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *); +/* + * ec_asn1_group2pkparameters() creates a ECPKPARAMETERS object from a + * EC_GROUP object + */ +static ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *, + ECPKPARAMETERS *); + +/* the function definitions */ + +static int ec_asn1_group2fieldid(const EC_GROUP *group, X9_62_FIELDID *field) +{ + int ok = 0, nid; + BIGNUM *tmp = NULL; + + if (group == NULL || field == NULL) + return 0; + + /* clear the old values (if necessary) */ + if (field->fieldType != NULL) + ASN1_OBJECT_free(field->fieldType); + if (field->p.other != NULL) + ASN1_TYPE_free(field->p.other); + + nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group)); + /* set OID for the field */ + if ((field->fieldType = OBJ_nid2obj(nid)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_OBJ_LIB); + goto err; + } + + if (nid == NID_X9_62_prime_field) { + if ((tmp = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + /* the parameters are specified by the prime number p */ + if (!EC_GROUP_get_curve_GFp(group, tmp, NULL, NULL, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB); + goto err; + } + /* set the prime number */ + field->p.prime = BN_to_ASN1_INTEGER(tmp, NULL); + if (field->p.prime == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_ASN1_LIB); + goto err; + } + } else /* nid == NID_X9_62_characteristic_two_field */ +#ifdef OPENSSL_NO_EC2M + { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, EC_R_GF2M_NOT_SUPPORTED); + goto err; + } +#else + { + int field_type; + X9_62_CHARACTERISTIC_TWO *char_two; + + field->p.char_two = X9_62_CHARACTERISTIC_TWO_new(); + char_two = field->p.char_two; + + if (char_two == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + + char_two->m = (long)EC_GROUP_get_degree(group); + + field_type = EC_GROUP_get_basis_type(group); + + if (field_type == 0) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB); + goto err; + } + /* set base type OID */ + if ((char_two->type = OBJ_nid2obj(field_type)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_OBJ_LIB); + goto err; + } + + if (field_type == NID_X9_62_tpBasis) { + unsigned int k; + + if (!EC_GROUP_get_trinomial_basis(group, &k)) + goto err; + + char_two->p.tpBasis = ASN1_INTEGER_new(); + if (!char_two->p.tpBasis) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!ASN1_INTEGER_set(char_two->p.tpBasis, (long)k)) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_ASN1_LIB); + goto err; + } + } else if (field_type == NID_X9_62_ppBasis) { + unsigned int k1, k2, k3; + + if (!EC_GROUP_get_pentanomial_basis(group, &k1, &k2, &k3)) + goto err; + + char_two->p.ppBasis = X9_62_PENTANOMIAL_new(); + if (!char_two->p.ppBasis) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* set k? values */ + char_two->p.ppBasis->k1 = (long)k1; + char_two->p.ppBasis->k2 = (long)k2; + char_two->p.ppBasis->k3 = (long)k3; + } else { /* field_type == NID_X9_62_onBasis */ + + /* for ONB the parameters are (asn1) NULL */ + char_two->p.onBasis = ASN1_NULL_new(); + if (!char_two->p.onBasis) { + ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE); + goto err; + } + } + } +#endif + + ok = 1; + + err:if (tmp) + BN_free(tmp); + return (ok); +} + +static int ec_asn1_group2curve(const EC_GROUP *group, X9_62_CURVE *curve) +{ + int ok = 0, nid; + BIGNUM *tmp_1 = NULL, *tmp_2 = NULL; + unsigned char *buffer_1 = NULL, *buffer_2 = NULL, + *a_buf = NULL, *b_buf = NULL; + size_t len_1, len_2; + unsigned char char_zero = 0; + + if (!group || !curve || !curve->a || !curve->b) + return 0; + + if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + + nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group)); + + /* get a and b */ + if (nid == NID_X9_62_prime_field) { + if (!EC_GROUP_get_curve_GFp(group, NULL, tmp_1, tmp_2, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB); + goto err; + } + } +#ifndef OPENSSL_NO_EC2M + else { /* nid == NID_X9_62_characteristic_two_field */ + + if (!EC_GROUP_get_curve_GF2m(group, NULL, tmp_1, tmp_2, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB); + goto err; + } + } +#endif + len_1 = (size_t)BN_num_bytes(tmp_1); + len_2 = (size_t)BN_num_bytes(tmp_2); + + if (len_1 == 0) { + /* len_1 == 0 => a == 0 */ + a_buf = &char_zero; + len_1 = 1; + } else { + if ((buffer_1 = OPENSSL_malloc(len_1)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + if ((len_1 = BN_bn2bin(tmp_1, buffer_1)) == 0) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB); + goto err; + } + a_buf = buffer_1; + } + + if (len_2 == 0) { + /* len_2 == 0 => b == 0 */ + b_buf = &char_zero; + len_2 = 1; + } else { + if ((buffer_2 = OPENSSL_malloc(len_2)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + if ((len_2 = BN_bn2bin(tmp_2, buffer_2)) == 0) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB); + goto err; + } + b_buf = buffer_2; + } + + /* set a and b */ + if (!M_ASN1_OCTET_STRING_set(curve->a, a_buf, len_1) || + !M_ASN1_OCTET_STRING_set(curve->b, b_buf, len_2)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB); + goto err; + } + + /* set the seed (optional) */ + if (group->seed) { + if (!curve->seed) + if ((curve->seed = ASN1_BIT_STRING_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE); + goto err; + } + curve->seed->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); + curve->seed->flags |= ASN1_STRING_FLAG_BITS_LEFT; + if (!ASN1_BIT_STRING_set(curve->seed, group->seed, + (int)group->seed_len)) { + ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB); + goto err; + } + } else { + if (curve->seed) { + ASN1_BIT_STRING_free(curve->seed); + curve->seed = NULL; + } + } + + ok = 1; + + err:if (buffer_1) + OPENSSL_free(buffer_1); + if (buffer_2) + OPENSSL_free(buffer_2); + if (tmp_1) + BN_free(tmp_1); + if (tmp_2) + BN_free(tmp_2); + return (ok); +} + +static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *group, + ECPARAMETERS *param) +{ + int ok = 0; + size_t len = 0; + ECPARAMETERS *ret = NULL; + BIGNUM *tmp = NULL; + unsigned char *buffer = NULL; + const EC_POINT *point = NULL; + point_conversion_form_t form; + + if ((tmp = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (param == NULL) { + if ((ret = ECPARAMETERS_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + } else + ret = param; + + /* set the version (always one) */ + ret->version = (long)0x1; + + /* set the fieldID */ + if (!ec_asn1_group2fieldid(group, ret->fieldID)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + + /* set the curve */ + if (!ec_asn1_group2curve(group, ret->curve)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + + /* set the base point */ + if ((point = EC_GROUP_get0_generator(group)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, EC_R_UNDEFINED_GENERATOR); + goto err; + } + + form = EC_GROUP_get_point_conversion_form(group); + + len = EC_POINT_point2oct(group, point, form, NULL, len, NULL); + if (len == 0) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + if ((buffer = OPENSSL_malloc(len)) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!EC_POINT_point2oct(group, point, form, buffer, len, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + if (ret->base == NULL && (ret->base = ASN1_OCTET_STRING_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!ASN1_OCTET_STRING_set(ret->base, buffer, len)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); + goto err; + } + + /* set the order */ + if (!EC_GROUP_get_order(group, tmp, NULL)) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB); + goto err; + } + ret->order = BN_to_ASN1_INTEGER(tmp, ret->order); + if (ret->order == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); + goto err; + } + + /* set the cofactor (optional) */ + if (EC_GROUP_get_cofactor(group, tmp, NULL)) { + ret->cofactor = BN_to_ASN1_INTEGER(tmp, ret->cofactor); + if (ret->cofactor == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB); + goto err; + } + } + + ok = 1; + + err:if (!ok) { + if (ret && !param) + ECPARAMETERS_free(ret); + ret = NULL; + } + if (tmp) + BN_free(tmp); + if (buffer) + OPENSSL_free(buffer); + return (ret); +} + +ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *group, + ECPKPARAMETERS *params) +{ + int ok = 1, tmp; + ECPKPARAMETERS *ret = params; + + if (ret == NULL) { + if ((ret = ECPKPARAMETERS_new()) == NULL) { + ECerr(EC_F_EC_ASN1_GROUP2PKPARAMETERS, ERR_R_MALLOC_FAILURE); + return NULL; + } + } else { + if (ret->type == 0 && ret->value.named_curve) + ASN1_OBJECT_free(ret->value.named_curve); + else if (ret->type == 1 && ret->value.parameters) + ECPARAMETERS_free(ret->value.parameters); + } + + if (EC_GROUP_get_asn1_flag(group)) { + /* + * use the asn1 OID to describe the the elliptic curve parameters + */ + tmp = EC_GROUP_get_curve_name(group); + if (tmp) { + ret->type = 0; + if ((ret->value.named_curve = OBJ_nid2obj(tmp)) == NULL) + ok = 0; + } else + /* we don't kmow the nid => ERROR */ + ok = 0; + } else { + /* use the ECPARAMETERS structure */ + ret->type = 1; + if ((ret->value.parameters = + ec_asn1_group2parameters(group, NULL)) == NULL) + ok = 0; + } + + if (!ok) { + ECPKPARAMETERS_free(ret); + return NULL; + } + return ret; +} + +static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *params) +{ + int ok = 0, tmp; + EC_GROUP *ret = NULL; + BIGNUM *p = NULL, *a = NULL, *b = NULL; + EC_POINT *point = NULL; + long field_bits; + + if (!params->fieldID || !params->fieldID->fieldType || + !params->fieldID->p.ptr) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + /* now extract the curve parameters a and b */ + if (!params->curve || !params->curve->a || + !params->curve->a->data || !params->curve->b || + !params->curve->b->data) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + a = BN_bin2bn(params->curve->a->data, params->curve->a->length, NULL); + if (a == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB); + goto err; + } + b = BN_bin2bn(params->curve->b->data, params->curve->b->length, NULL); + if (b == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB); + goto err; + } + + /* get the field parameters */ + tmp = OBJ_obj2nid(params->fieldID->fieldType); + if (tmp == NID_X9_62_characteristic_two_field) +#ifdef OPENSSL_NO_EC2M + { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_GF2M_NOT_SUPPORTED); + goto err; + } +#else + { + X9_62_CHARACTERISTIC_TWO *char_two; + + char_two = params->fieldID->p.char_two; + + field_bits = char_two->m; + if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE); + goto err; + } + + if ((p = BN_new()) == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* get the base type */ + tmp = OBJ_obj2nid(char_two->type); + + if (tmp == NID_X9_62_tpBasis) { + long tmp_long; + + if (!char_two->p.tpBasis) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + tmp_long = ASN1_INTEGER_get(char_two->p.tpBasis); + + if (!(char_two->m > tmp_long && tmp_long > 0)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, + EC_R_INVALID_TRINOMIAL_BASIS); + goto err; + } + + /* create the polynomial */ + if (!BN_set_bit(p, (int)char_two->m)) + goto err; + if (!BN_set_bit(p, (int)tmp_long)) + goto err; + if (!BN_set_bit(p, 0)) + goto err; + } else if (tmp == NID_X9_62_ppBasis) { + X9_62_PENTANOMIAL *penta; + + penta = char_two->p.ppBasis; + if (!penta) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + if (! + (char_two->m > penta->k3 && penta->k3 > penta->k2 + && penta->k2 > penta->k1 && penta->k1 > 0)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, + EC_R_INVALID_PENTANOMIAL_BASIS); + goto err; + } + + /* create the polynomial */ + if (!BN_set_bit(p, (int)char_two->m)) + goto err; + if (!BN_set_bit(p, (int)penta->k1)) + goto err; + if (!BN_set_bit(p, (int)penta->k2)) + goto err; + if (!BN_set_bit(p, (int)penta->k3)) + goto err; + if (!BN_set_bit(p, 0)) + goto err; + } else if (tmp == NID_X9_62_onBasis) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_NOT_IMPLEMENTED); + goto err; + } else { /* error */ + + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + /* create the EC_GROUP structure */ + ret = EC_GROUP_new_curve_GF2m(p, a, b, NULL); + } +#endif + else if (tmp == NID_X9_62_prime_field) { + /* we have a curve over a prime field */ + /* extract the prime number */ + if (!params->fieldID->p.prime) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + p = ASN1_INTEGER_to_BN(params->fieldID->p.prime, NULL); + if (p == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); + goto err; + } + + if (BN_is_negative(p) || BN_is_zero(p)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD); + goto err; + } + + field_bits = BN_num_bits(p); + if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE); + goto err; + } + + /* create the EC_GROUP structure */ + ret = EC_GROUP_new_curve_GFp(p, a, b, NULL); + } else { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD); + goto err; + } + + if (ret == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); + goto err; + } + + /* extract seed (optional) */ + if (params->curve->seed != NULL) { + if (ret->seed != NULL) + OPENSSL_free(ret->seed); + if (!(ret->seed = OPENSSL_malloc(params->curve->seed->length))) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE); + goto err; + } + memcpy(ret->seed, params->curve->seed->data, + params->curve->seed->length); + ret->seed_len = params->curve->seed->length; + } + + if (!params->order || !params->base || !params->base->data) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR); + goto err; + } + + if ((point = EC_POINT_new(ret)) == NULL) + goto err; + + /* set the point conversion form */ + EC_GROUP_set_point_conversion_form(ret, (point_conversion_form_t) + (params->base->data[0] & ~0x01)); + + /* extract the ec point */ + if (!EC_POINT_oct2point(ret, point, params->base->data, + params->base->length, NULL)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); + goto err; + } + + /* extract the order */ + if ((a = ASN1_INTEGER_to_BN(params->order, a)) == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); + goto err; + } + if (BN_is_negative(a) || BN_is_zero(a)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER); + goto err; + } + if (BN_num_bits(a) > (int)field_bits + 1) { /* Hasse bound */ + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER); + goto err; + } + + /* extract the cofactor (optional) */ + if (params->cofactor == NULL) { + if (b) { + BN_free(b); + b = NULL; + } + } else if ((b = ASN1_INTEGER_to_BN(params->cofactor, b)) == NULL) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB); + goto err; + } + /* set the generator, order and cofactor (if present) */ + if (!EC_GROUP_set_generator(ret, point, a, b)) { + ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB); + goto err; + } + + ok = 1; + + err:if (!ok) { + if (ret) + EC_GROUP_clear_free(ret); + ret = NULL; + } + + if (p) + BN_free(p); + if (a) + BN_free(a); + if (b) + BN_free(b); + if (point) + EC_POINT_free(point); + return (ret); +} + +EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *params) +{ + EC_GROUP *ret = NULL; + int tmp = 0; + + if (params == NULL) { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_MISSING_PARAMETERS); + return NULL; + } + + if (params->type == 0) { /* the curve is given by an OID */ + tmp = OBJ_obj2nid(params->value.named_curve); + if ((ret = EC_GROUP_new_by_curve_name(tmp)) == NULL) { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, + EC_R_EC_GROUP_NEW_BY_NAME_FAILURE); + return NULL; + } + EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_NAMED_CURVE); + } else if (params->type == 1) { /* the parameters are given by a + * ECPARAMETERS structure */ + ret = ec_asn1_parameters2group(params->value.parameters); + if (!ret) { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, ERR_R_EC_LIB); + return NULL; + } + EC_GROUP_set_asn1_flag(ret, 0x0); + } else if (params->type == 2) { /* implicitlyCA */ + return NULL; + } else { + ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_ASN1_ERROR); + return NULL; + } + + return ret; +} + +/* EC_GROUP <-> DER encoding of ECPKPARAMETERS */ + +EC_GROUP *d2i_ECPKParameters(EC_GROUP **a, const unsigned char **in, long len) +{ + EC_GROUP *group = NULL; + ECPKPARAMETERS *params = NULL; + const unsigned char *p = *in; + + if ((params = d2i_ECPKPARAMETERS(NULL, &p, len)) == NULL) { + ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_D2I_ECPKPARAMETERS_FAILURE); + ECPKPARAMETERS_free(params); + return NULL; + } + + if ((group = ec_asn1_pkparameters2group(params)) == NULL) { + ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_PKPARAMETERS2GROUP_FAILURE); + ECPKPARAMETERS_free(params); + return NULL; + } + + if (a && *a) + EC_GROUP_clear_free(*a); + if (a) + *a = group; + + ECPKPARAMETERS_free(params); + *in = p; + return (group); +} + +int i2d_ECPKParameters(const EC_GROUP *a, unsigned char **out) +{ + int ret = 0; + ECPKPARAMETERS *tmp = ec_asn1_group2pkparameters(a, NULL); + if (tmp == NULL) { + ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_GROUP2PKPARAMETERS_FAILURE); + return 0; + } + if ((ret = i2d_ECPKPARAMETERS(tmp, out)) == 0) { + ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_I2D_ECPKPARAMETERS_FAILURE); + ECPKPARAMETERS_free(tmp); + return 0; + } + ECPKPARAMETERS_free(tmp); + return (ret); +} + +/* some EC_KEY functions */ + +EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len) +{ + int ok = 0; + EC_KEY *ret = NULL; + EC_PRIVATEKEY *priv_key = NULL; + const unsigned char *p = *in; + + if ((priv_key = d2i_EC_PRIVATEKEY(NULL, &p, len)) == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + return NULL; + } + + if (a == NULL || *a == NULL) { + if ((ret = EC_KEY_new()) == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + } else + ret = *a; + + if (priv_key->parameters) { + if (ret->group) + EC_GROUP_clear_free(ret->group); + ret->group = ec_asn1_pkparameters2group(priv_key->parameters); + } + + if (ret->group == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + + ret->version = priv_key->version; + + if (priv_key->privateKey) { + ret->priv_key = BN_bin2bn(M_ASN1_STRING_data(priv_key->privateKey), + M_ASN1_STRING_length(priv_key->privateKey), + ret->priv_key); + if (ret->priv_key == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_BN_LIB); + goto err; + } + } else { + ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_MISSING_PRIVATE_KEY); + goto err; + } + + if (ret->pub_key) + EC_POINT_clear_free(ret->pub_key); + ret->pub_key = EC_POINT_new(ret->group); + if (ret->pub_key == NULL) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + + if (priv_key->publicKey) { + const unsigned char *pub_oct; + int pub_oct_len; + + pub_oct = M_ASN1_STRING_data(priv_key->publicKey); + pub_oct_len = M_ASN1_STRING_length(priv_key->publicKey); + /* + * The first byte - point conversion form - must be present. + */ + if (pub_oct_len <= 0) { + ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL); + goto err; + } + /* Save the point conversion form. */ + ret->conv_form = (point_conversion_form_t) (pub_oct[0] & ~0x01); + if (!EC_POINT_oct2point(ret->group, ret->pub_key, + pub_oct, (size_t)(pub_oct_len), NULL)) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + } else { + if (!EC_POINT_mul + (ret->group, ret->pub_key, ret->priv_key, NULL, NULL, NULL)) { + ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + /* Remember the original private-key-only encoding. */ + ret->enc_flag |= EC_PKEY_NO_PUBKEY; + } + + if (a) + *a = ret; + *in = p; + ok = 1; + err: + if (!ok) { + if (ret && (a == NULL || *a != ret)) + EC_KEY_free(ret); + ret = NULL; + } + + if (priv_key) + EC_PRIVATEKEY_free(priv_key); + + return (ret); +} + +int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out) +{ + int ret = 0, ok = 0; + unsigned char *buffer = NULL; + size_t buf_len = 0, tmp_len, bn_len; + EC_PRIVATEKEY *priv_key = NULL; + + if (a == NULL || a->group == NULL || a->priv_key == NULL || + (!(a->enc_flag & EC_PKEY_NO_PUBKEY) && a->pub_key == NULL)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER); + goto err; + } + + if ((priv_key = EC_PRIVATEKEY_new()) == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + priv_key->version = a->version; + + bn_len = (size_t)BN_num_bytes(a->priv_key); + + /* Octetstring may need leading zeros if BN is to short */ + + buf_len = (EC_GROUP_get_degree(a->group) + 7) / 8; + + if (bn_len > buf_len) { + ECerr(EC_F_I2D_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL); + goto err; + } + + buffer = OPENSSL_malloc(buf_len); + if (buffer == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!BN_bn2bin(a->priv_key, buffer + buf_len - bn_len)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_BN_LIB); + goto err; + } + + if (buf_len - bn_len > 0) { + memset(buffer, 0, buf_len - bn_len); + } + + if (!M_ASN1_OCTET_STRING_set(priv_key->privateKey, buffer, buf_len)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB); + goto err; + } + + if (!(a->enc_flag & EC_PKEY_NO_PARAMETERS)) { + if ((priv_key->parameters = + ec_asn1_group2pkparameters(a->group, + priv_key->parameters)) == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + } + + if (!(a->enc_flag & EC_PKEY_NO_PUBKEY)) { + priv_key->publicKey = M_ASN1_BIT_STRING_new(); + if (priv_key->publicKey == NULL) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + + tmp_len = EC_POINT_point2oct(a->group, a->pub_key, + a->conv_form, NULL, 0, NULL); + + if (tmp_len > buf_len) { + unsigned char *tmp_buffer = OPENSSL_realloc(buffer, tmp_len); + if (!tmp_buffer) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + buffer = tmp_buffer; + buf_len = tmp_len; + } + + if (!EC_POINT_point2oct(a->group, a->pub_key, + a->conv_form, buffer, buf_len, NULL)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + + priv_key->publicKey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07); + priv_key->publicKey->flags |= ASN1_STRING_FLAG_BITS_LEFT; + if (!M_ASN1_BIT_STRING_set(priv_key->publicKey, buffer, buf_len)) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB); + goto err; + } + } + + if ((ret = i2d_EC_PRIVATEKEY(priv_key, out)) == 0) { + ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB); + goto err; + } + ok = 1; + err: + if (buffer) + OPENSSL_free(buffer); + if (priv_key) + EC_PRIVATEKEY_free(priv_key); + return (ok ? ret : 0); +} + +int i2d_ECParameters(EC_KEY *a, unsigned char **out) +{ + if (a == NULL) { + ECerr(EC_F_I2D_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + return i2d_ECPKParameters(a->group, out); +} + +EC_KEY *d2i_ECParameters(EC_KEY **a, const unsigned char **in, long len) +{ + EC_KEY *ret; + + if (in == NULL || *in == NULL) { + ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER); + return NULL; + } + + if (a == NULL || *a == NULL) { + if ((ret = EC_KEY_new()) == NULL) { + ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_MALLOC_FAILURE); + return NULL; + } + } else + ret = *a; + + if (!d2i_ECPKParameters(&ret->group, in, len)) { + ECerr(EC_F_D2I_ECPARAMETERS, ERR_R_EC_LIB); + if (a == NULL || *a != ret) + EC_KEY_free(ret); + return NULL; + } + + if (a) + *a = ret; + + return ret; +} + +EC_KEY *o2i_ECPublicKey(EC_KEY **a, const unsigned char **in, long len) +{ + EC_KEY *ret = NULL; + + if (a == NULL || (*a) == NULL || (*a)->group == NULL) { + /* + * sorry, but a EC_GROUP-structur is necessary to set the public key + */ + ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + ret = *a; + if (ret->pub_key == NULL && + (ret->pub_key = EC_POINT_new(ret->group)) == NULL) { + ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_MALLOC_FAILURE); + return 0; + } + if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL)) { + ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_EC_LIB); + return 0; + } + /* save the point conversion form */ + ret->conv_form = (point_conversion_form_t) (*in[0] & ~0x01); + *in += len; + return ret; +} + +int i2o_ECPublicKey(EC_KEY *a, unsigned char **out) +{ + size_t buf_len = 0; + int new_buffer = 0; + + if (a == NULL) { + ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + buf_len = EC_POINT_point2oct(a->group, a->pub_key, + a->conv_form, NULL, 0, NULL); + + if (out == NULL || buf_len == 0) + /* out == NULL => just return the length of the octet string */ + return buf_len; + + if (*out == NULL) { + if ((*out = OPENSSL_malloc(buf_len)) == NULL) { + ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_MALLOC_FAILURE); + return 0; + } + new_buffer = 1; + } + if (!EC_POINT_point2oct(a->group, a->pub_key, a->conv_form, + *out, buf_len, NULL)) { + ECerr(EC_F_I2O_ECPUBLICKEY, ERR_R_EC_LIB); + if (new_buffer) { + OPENSSL_free(*out); + *out = NULL; + } + return 0; + } + if (!new_buffer) + *out += buf_len; + return buf_len; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_check.c b/Cryptlib/OpenSSL/crypto/ec/ec_check.c new file mode 100644 index 0000000..dd6f0ac --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_check.c @@ -0,0 +1,120 @@ +/* crypto/ec/ec_check.c */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ec_lcl.h" +#include + +int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx) +{ + int ret = 0; + BIGNUM *order; + BN_CTX *new_ctx = NULL; + EC_POINT *point = NULL; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) { + ECerr(EC_F_EC_GROUP_CHECK, ERR_R_MALLOC_FAILURE); + goto err; + } + } + BN_CTX_start(ctx); + if ((order = BN_CTX_get(ctx)) == NULL) + goto err; + + /* check the discriminant */ + if (!EC_GROUP_check_discriminant(group, ctx)) { + ECerr(EC_F_EC_GROUP_CHECK, EC_R_DISCRIMINANT_IS_ZERO); + goto err; + } + + /* check the generator */ + if (group->generator == NULL) { + ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_GENERATOR); + goto err; + } + if (EC_POINT_is_on_curve(group, group->generator, ctx) <= 0) { + ECerr(EC_F_EC_GROUP_CHECK, EC_R_POINT_IS_NOT_ON_CURVE); + goto err; + } + + /* check the order of the generator */ + if ((point = EC_POINT_new(group)) == NULL) + goto err; + if (!EC_GROUP_get_order(group, order, ctx)) + goto err; + if (BN_is_zero(order)) { + ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_ORDER); + goto err; + } + + if (!EC_POINT_mul(group, point, order, NULL, NULL, ctx)) + goto err; + if (!EC_POINT_is_at_infinity(group, point)) { + ECerr(EC_F_EC_GROUP_CHECK, EC_R_INVALID_GROUP_ORDER); + goto err; + } + + ret = 1; + + err: + if (ctx != NULL) + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + if (point) + EC_POINT_free(point); + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_curve.c b/Cryptlib/OpenSSL/crypto/ec/ec_curve.c new file mode 100644 index 0000000..0ec05f8 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_curve.c @@ -0,0 +1,343 @@ +/* crypto/ec/ec_curve.c */ +/* + * Written by Nils Larsch for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2010 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * + * Portions of the attached software ("Contribution") are developed by + * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. + * + * The Contribution is licensed pursuant to the OpenSSL open source + * license provided above. + * + * The elliptic curve binary polynomial software is originally written by + * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. + * + */ + +#include +#include "ec_lcl.h" +#include +#include +#include + +#ifdef OPENSSL_FIPS +# include +#endif + +typedef struct { + int field_type, /* either NID_X9_62_prime_field or + * NID_X9_62_characteristic_two_field */ + seed_len, param_len; + unsigned int cofactor; /* promoted to BN_ULONG */ +} EC_CURVE_DATA; + +#ifndef OPENSSL_NO_SM2 +static const struct { + EC_CURVE_DATA h; + unsigned char data[0 + 32 * 6]; +} _EC_sm2p256v1 = { + { + NID_X9_62_prime_field, 0, 32, 1 + }, + { + /* no seed */ + + /* p */ + 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + /* a */ + 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, + /* b */ + 0x28, 0xe9, 0xfa, 0x9e, 0x9d, 0x9f, 0x5e, 0x34, 0x4d, 0x5a, 0x9e, 0x4b, + 0xcf, 0x65, 0x09, 0xa7, 0xf3, 0x97, 0x89, 0xf5, 0x15, 0xab, 0x8f, 0x92, + 0xdd, 0xbc, 0xbd, 0x41, 0x4d, 0x94, 0x0e, 0x93, + /* x */ + 0x32, 0xc4, 0xae, 0x2c, 0x1f, 0x19, 0x81, 0x19, 0x5f, 0x99, 0x04, 0x46, + 0x6a, 0x39, 0xc9, 0x94, 0x8f, 0xe3, 0x0b, 0xbf, 0xf2, 0x66, 0x0b, 0xe1, + 0x71, 0x5a, 0x45, 0x89, 0x33, 0x4c, 0x74, 0xc7, + /* y */ + 0xbc, 0x37, 0x36, 0xa2, 0xf4, 0xf6, 0x77, 0x9c, 0x59, 0xbd, 0xce, 0xe3, + 0x6b, 0x69, 0x21, 0x53, 0xd0, 0xa9, 0x87, 0x7c, 0xc6, 0x2a, 0x47, 0x40, + 0x02, 0xdf, 0x32, 0xe5, 0x21, 0x39, 0xf0, 0xa0, + /* order */ + 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0x72, 0x03, 0xdf, 0x6b, 0x21, 0xc6, 0x05, 0x2b, + 0x53, 0xbb, 0xf4, 0x09, 0x39, 0xd5, 0x41, 0x23, + } +}; +#endif /* OPENSSL_NO_SM2 */ + +typedef struct _ec_list_element_st { + int nid; + const EC_CURVE_DATA *data; + const EC_METHOD *(*meth) (void); + const char *comment; +} ec_list_element; + +static const ec_list_element curve_list[] = { + /* prime field curves */ + /* secg curves */ +#ifndef OPENSSL_NO_SM2 + {NID_sm2, &_EC_sm2p256v1.h, 0, + "SM2 curve over a 256 bit prime field"}, +#endif +}; + +#define curve_list_length (sizeof(curve_list)/sizeof(ec_list_element)) + +static EC_GROUP *ec_group_new_from_data(const ec_list_element curve) +{ + EC_GROUP *group = NULL; + EC_POINT *P = NULL; + BN_CTX *ctx = NULL; + BIGNUM *p = NULL, *a = NULL, *b = NULL, *x = NULL, *y = NULL, *order = + NULL; + int ok = 0; + int seed_len, param_len; + const EC_METHOD *meth; + const EC_CURVE_DATA *data; + const unsigned char *params; + + if ((ctx = BN_CTX_new()) == NULL) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_MALLOC_FAILURE); + goto err; + } + + data = curve.data; + seed_len = data->seed_len; + param_len = data->param_len; + params = (const unsigned char *)(data + 1); /* skip header */ + params += seed_len; /* skip seed */ + + if (!(p = BN_bin2bn(params + 0 * param_len, param_len, NULL)) + || !(a = BN_bin2bn(params + 1 * param_len, param_len, NULL)) + || !(b = BN_bin2bn(params + 2 * param_len, param_len, NULL))) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_BN_LIB); + goto err; + } + + if (curve.meth != 0) { + meth = curve.meth(); + if (((group = EC_GROUP_new(meth)) == NULL) || + (!(group->meth->group_set_curve(group, p, a, b, ctx)))) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + } else if (data->field_type == NID_X9_62_prime_field) { + if ((group = EC_GROUP_new_curve_GFp(p, a, b, ctx)) == NULL) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + } +#ifndef OPENSSL_NO_EC2M + else { /* field_type == + * NID_X9_62_characteristic_two_field */ + + if ((group = EC_GROUP_new_curve_GF2m(p, a, b, ctx)) == NULL) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + } +#endif + + if ((P = EC_POINT_new(group)) == NULL) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + + if (!(x = BN_bin2bn(params + 3 * param_len, param_len, NULL)) + || !(y = BN_bin2bn(params + 4 * param_len, param_len, NULL))) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_BN_LIB); + goto err; + } + if (!EC_POINT_set_affine_coordinates_GFp(group, P, x, y, ctx)) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + if (!(order = BN_bin2bn(params + 5 * param_len, param_len, NULL)) + || !BN_set_word(x, (BN_ULONG)data->cofactor)) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_BN_LIB); + goto err; + } + if (!EC_GROUP_set_generator(group, P, order, x)) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + if (seed_len) { + if (!EC_GROUP_set_seed(group, params - seed_len, seed_len)) { + ECerr(EC_F_EC_GROUP_NEW_FROM_DATA, ERR_R_EC_LIB); + goto err; + } + } + ok = 1; + err: + if (!ok) { + EC_GROUP_free(group); + group = NULL; + } + if (P) + EC_POINT_free(P); + if (ctx) + BN_CTX_free(ctx); + if (p) + BN_free(p); + if (a) + BN_free(a); + if (b) + BN_free(b); + if (order) + BN_free(order); + if (x) + BN_free(x); + if (y) + BN_free(y); + return group; +} + +EC_GROUP *EC_GROUP_new_by_curve_name(int nid) +{ + size_t i; + EC_GROUP *ret = NULL; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return FIPS_ec_group_new_by_curve_name(nid); +#endif + if (nid <= 0) + return NULL; + + for (i = 0; i < curve_list_length; i++) + if (curve_list[i].nid == nid) { + ret = ec_group_new_from_data(curve_list[i]); + break; + } + + if (ret == NULL) { + ECerr(EC_F_EC_GROUP_NEW_BY_CURVE_NAME, EC_R_UNKNOWN_GROUP); + return NULL; + } + + EC_GROUP_set_curve_name(ret, nid); + + return ret; +} + +size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems) +{ + size_t i, min; + + if (r == NULL || nitems == 0) + return curve_list_length; + + min = nitems < curve_list_length ? nitems : curve_list_length; + + for (i = 0; i < min; i++) { + r[i].nid = curve_list[i].nid; + r[i].comment = curve_list[i].comment; + } + + return curve_list_length; +} + +/* Functions to translate between common NIST curve names and NIDs */ + +typedef struct { + const char *name; /* NIST Name of curve */ + int nid; /* Curve NID */ +} EC_NIST_NAME; + +static EC_NIST_NAME nist_curves[] = { + {"B-163", NID_sect163r2}, + {"B-233", NID_sect233r1}, + {"B-283", NID_sect283r1}, + {"B-409", NID_sect409r1}, + {"B-571", NID_sect571r1}, + {"K-163", NID_sect163k1}, + {"K-233", NID_sect233k1}, + {"K-283", NID_sect283k1}, + {"K-409", NID_sect409k1}, + {"K-571", NID_sect571k1}, + {"P-192", NID_X9_62_prime192v1}, + {"P-224", NID_secp224r1}, + {"P-256", NID_X9_62_prime256v1}, + {"P-384", NID_secp384r1}, + {"P-521", NID_secp521r1} +}; + +const char *EC_curve_nid2nist(int nid) +{ + size_t i; + for (i = 0; i < sizeof(nist_curves) / sizeof(EC_NIST_NAME); i++) { + if (nist_curves[i].nid == nid) + return nist_curves[i].name; + } + return NULL; +} + +int EC_curve_nist2nid(const char *name) +{ + size_t i; + for (i = 0; i < sizeof(nist_curves) / sizeof(EC_NIST_NAME); i++) { + if (!strcmp(nist_curves[i].name, name)) + return nist_curves[i].nid; + } + return NID_undef; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_cvt.c b/Cryptlib/OpenSSL/crypto/ec/ec_cvt.c new file mode 100644 index 0000000..5fa68c2 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_cvt.c @@ -0,0 +1,154 @@ +/* crypto/ec/ec_cvt.c */ +/* + * Originally written by Bodo Moeller for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * + * Portions of the attached software ("Contribution") are developed by + * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. + * + * The Contribution is licensed pursuant to the OpenSSL open source + * license provided above. + * + * The elliptic curve binary polynomial software is originally written by + * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. + * + */ + +#include +#include "ec_lcl.h" + +#ifdef OPENSSL_FIPS +# include +#endif + +EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx) +{ + const EC_METHOD *meth; + EC_GROUP *ret; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return FIPS_ec_group_new_curve_gfp(p, a, b, ctx); +#endif +#if defined(OPENSSL_BN_ASM_MONT) + /* + * This might appear controversial, but the fact is that generic + * prime method was observed to deliver better performance even + * for NIST primes on a range of platforms, e.g.: 60%-15% + * improvement on IA-64, ~25% on ARM, 30%-90% on P4, 20%-25% + * in 32-bit build and 35%--12% in 64-bit build on Core2... + * Coefficients are relative to optimized bn_nist.c for most + * intensive ECDSA verify and ECDH operations for 192- and 521- + * bit keys respectively. Choice of these boundary values is + * arguable, because the dependency of improvement coefficient + * from key length is not a "monotone" curve. For example while + * 571-bit result is 23% on ARM, 384-bit one is -1%. But it's + * generally faster, sometimes "respectfully" faster, sometimes + * "tolerably" slower... What effectively happens is that loop + * with bn_mul_add_words is put against bn_mul_mont, and the + * latter "wins" on short vectors. Correct solution should be + * implementing dedicated NxN multiplication subroutines for + * small N. But till it materializes, let's stick to generic + * prime method... + * + */ + meth = EC_GFp_mont_method(); +#else + meth = EC_GFp_nist_method(); +#endif + + ret = EC_GROUP_new(meth); + if (ret == NULL) + return NULL; + + if (!EC_GROUP_set_curve_GFp(ret, p, a, b, ctx)) { + unsigned long err; + + err = ERR_peek_last_error(); + + if (!(ERR_GET_LIB(err) == ERR_LIB_EC && + ((ERR_GET_REASON(err) == EC_R_NOT_A_NIST_PRIME) || + (ERR_GET_REASON(err) == EC_R_NOT_A_SUPPORTED_NIST_PRIME)))) { + /* real error */ + + EC_GROUP_clear_free(ret); + return NULL; + } + + /* + * not an actual error, we just cannot use EC_GFp_nist_method + */ + + ERR_clear_error(); + + EC_GROUP_clear_free(ret); + meth = EC_GFp_mont_method(); + + ret = EC_GROUP_new(meth); + if (ret == NULL) + return NULL; + + if (!EC_GROUP_set_curve_GFp(ret, p, a, b, ctx)) { + EC_GROUP_clear_free(ret); + return NULL; + } + } + + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_err.c b/Cryptlib/OpenSSL/crypto/ec/ec_err.c new file mode 100644 index 0000000..6fe5baa --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_err.c @@ -0,0 +1,332 @@ +/* crypto/ec/ec_err.c */ +/* ==================================================================== + * Copyright (c) 1999-2015 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/* + * NOTE: this file was auto generated by the mkerr.pl script: any changes + * made to it will be overwritten when the script next updates this file, + * only reason strings will be preserved. + */ + +#include +#include +#include + +/* BEGIN ERROR CODES */ +#ifndef OPENSSL_NO_ERR + +# define ERR_FUNC(func) ERR_PACK(ERR_LIB_EC,func,0) +# define ERR_REASON(reason) ERR_PACK(ERR_LIB_EC,0,reason) + +static ERR_STRING_DATA EC_str_functs[] = { + {ERR_FUNC(EC_F_BN_TO_FELEM), "BN_TO_FELEM"}, + {ERR_FUNC(EC_F_COMPUTE_WNAF), "COMPUTE_WNAF"}, + {ERR_FUNC(EC_F_D2I_ECPARAMETERS), "d2i_ECParameters"}, + {ERR_FUNC(EC_F_D2I_ECPKPARAMETERS), "d2i_ECPKParameters"}, + {ERR_FUNC(EC_F_D2I_ECPRIVATEKEY), "d2i_ECPrivateKey"}, + {ERR_FUNC(EC_F_DO_EC_KEY_PRINT), "DO_EC_KEY_PRINT"}, + {ERR_FUNC(EC_F_ECDH_CMS_DECRYPT), "ECDH_CMS_DECRYPT"}, + {ERR_FUNC(EC_F_ECDH_CMS_SET_SHARED_INFO), "ECDH_CMS_SET_SHARED_INFO"}, + {ERR_FUNC(EC_F_ECKEY_PARAM2TYPE), "ECKEY_PARAM2TYPE"}, + {ERR_FUNC(EC_F_ECKEY_PARAM_DECODE), "ECKEY_PARAM_DECODE"}, + {ERR_FUNC(EC_F_ECKEY_PRIV_DECODE), "ECKEY_PRIV_DECODE"}, + {ERR_FUNC(EC_F_ECKEY_PRIV_ENCODE), "ECKEY_PRIV_ENCODE"}, + {ERR_FUNC(EC_F_ECKEY_PUB_DECODE), "ECKEY_PUB_DECODE"}, + {ERR_FUNC(EC_F_ECKEY_PUB_ENCODE), "ECKEY_PUB_ENCODE"}, + {ERR_FUNC(EC_F_ECKEY_TYPE2PARAM), "ECKEY_TYPE2PARAM"}, + {ERR_FUNC(EC_F_ECPARAMETERS_PRINT), "ECParameters_print"}, + {ERR_FUNC(EC_F_ECPARAMETERS_PRINT_FP), "ECParameters_print_fp"}, + {ERR_FUNC(EC_F_ECPKPARAMETERS_PRINT), "ECPKParameters_print"}, + {ERR_FUNC(EC_F_ECPKPARAMETERS_PRINT_FP), "ECPKParameters_print_fp"}, + {ERR_FUNC(EC_F_ECP_NISTZ256_GET_AFFINE), "ecp_nistz256_get_affine"}, + {ERR_FUNC(EC_F_ECP_NISTZ256_MULT_PRECOMPUTE), + "ecp_nistz256_mult_precompute"}, + {ERR_FUNC(EC_F_ECP_NISTZ256_POINTS_MUL), "ecp_nistz256_points_mul"}, + {ERR_FUNC(EC_F_ECP_NISTZ256_PRE_COMP_NEW), "ecp_nistz256_pre_comp_new"}, + {ERR_FUNC(EC_F_ECP_NISTZ256_SET_WORDS), "ecp_nistz256_set_words"}, + {ERR_FUNC(EC_F_ECP_NISTZ256_WINDOWED_MUL), "ecp_nistz256_windowed_mul"}, + {ERR_FUNC(EC_F_ECP_NIST_MOD_192), "ECP_NIST_MOD_192"}, + {ERR_FUNC(EC_F_ECP_NIST_MOD_224), "ECP_NIST_MOD_224"}, + {ERR_FUNC(EC_F_ECP_NIST_MOD_256), "ECP_NIST_MOD_256"}, + {ERR_FUNC(EC_F_ECP_NIST_MOD_521), "ECP_NIST_MOD_521"}, + {ERR_FUNC(EC_F_EC_ASN1_GROUP2CURVE), "EC_ASN1_GROUP2CURVE"}, + {ERR_FUNC(EC_F_EC_ASN1_GROUP2FIELDID), "EC_ASN1_GROUP2FIELDID"}, + {ERR_FUNC(EC_F_EC_ASN1_GROUP2PARAMETERS), "EC_ASN1_GROUP2PARAMETERS"}, + {ERR_FUNC(EC_F_EC_ASN1_GROUP2PKPARAMETERS), "EC_ASN1_GROUP2PKPARAMETERS"}, + {ERR_FUNC(EC_F_EC_ASN1_PARAMETERS2GROUP), "EC_ASN1_PARAMETERS2GROUP"}, + {ERR_FUNC(EC_F_EC_ASN1_PKPARAMETERS2GROUP), "EC_ASN1_PKPARAMETERS2GROUP"}, + {ERR_FUNC(EC_F_EC_EX_DATA_SET_DATA), "EC_EX_DATA_set_data"}, + {ERR_FUNC(EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY), + "EC_GF2M_MONTGOMERY_POINT_MULTIPLY"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT), + "ec_GF2m_simple_group_check_discriminant"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE), + "ec_GF2m_simple_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_OCT2POINT), "ec_GF2m_simple_oct2point"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_POINT2OCT), "ec_GF2m_simple_point2oct"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES), + "ec_GF2m_simple_point_get_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES), + "ec_GF2m_simple_point_set_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES), + "ec_GF2m_simple_set_compressed_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_FIELD_DECODE), "ec_GFp_mont_field_decode"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_FIELD_ENCODE), "ec_GFp_mont_field_encode"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_FIELD_MUL), "ec_GFp_mont_field_mul"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE), + "ec_GFp_mont_field_set_to_one"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_FIELD_SQR), "ec_GFp_mont_field_sqr"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_GROUP_SET_CURVE), + "ec_GFp_mont_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP), + "EC_GFP_MONT_GROUP_SET_CURVE_GFP"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE), + "ec_GFp_nistp224_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP224_POINTS_MUL), "ec_GFp_nistp224_points_mul"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES), + "ec_GFp_nistp224_point_get_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE), + "ec_GFp_nistp256_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP256_POINTS_MUL), "ec_GFp_nistp256_points_mul"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES), + "ec_GFp_nistp256_point_get_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE), + "ec_GFp_nistp521_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP521_POINTS_MUL), "ec_GFp_nistp521_points_mul"}, + {ERR_FUNC(EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES), + "ec_GFp_nistp521_point_get_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_NIST_FIELD_MUL), "ec_GFp_nist_field_mul"}, + {ERR_FUNC(EC_F_EC_GFP_NIST_FIELD_SQR), "ec_GFp_nist_field_sqr"}, + {ERR_FUNC(EC_F_EC_GFP_NIST_GROUP_SET_CURVE), + "ec_GFp_nist_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT), + "ec_GFp_simple_group_check_discriminant"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE), + "ec_GFp_simple_group_set_curve"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP), + "EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR), + "EC_GFP_SIMPLE_GROUP_SET_GENERATOR"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_MAKE_AFFINE), "ec_GFp_simple_make_affine"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_OCT2POINT), "ec_GFp_simple_oct2point"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_POINT2OCT), "ec_GFp_simple_point2oct"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE), + "ec_GFp_simple_points_make_affine"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES), + "ec_GFp_simple_point_get_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP), + "EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES), + "ec_GFp_simple_point_set_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP), + "EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES), + "ec_GFp_simple_set_compressed_coordinates"}, + {ERR_FUNC(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP), + "EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP"}, + {ERR_FUNC(EC_F_EC_GROUP_CHECK), "EC_GROUP_check"}, + {ERR_FUNC(EC_F_EC_GROUP_CHECK_DISCRIMINANT), + "EC_GROUP_check_discriminant"}, + {ERR_FUNC(EC_F_EC_GROUP_COPY), "EC_GROUP_copy"}, + {ERR_FUNC(EC_F_EC_GROUP_GET0_GENERATOR), "EC_GROUP_get0_generator"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_COFACTOR), "EC_GROUP_get_cofactor"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_CURVE_GF2M), "EC_GROUP_get_curve_GF2m"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_CURVE_GFP), "EC_GROUP_get_curve_GFp"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_DEGREE), "EC_GROUP_get_degree"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_ORDER), "EC_GROUP_get_order"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS), + "EC_GROUP_get_pentanomial_basis"}, + {ERR_FUNC(EC_F_EC_GROUP_GET_TRINOMIAL_BASIS), + "EC_GROUP_get_trinomial_basis"}, + {ERR_FUNC(EC_F_EC_GROUP_NEW), "EC_GROUP_new"}, + {ERR_FUNC(EC_F_EC_GROUP_NEW_BY_CURVE_NAME), "EC_GROUP_new_by_curve_name"}, + {ERR_FUNC(EC_F_EC_GROUP_NEW_FROM_DATA), "EC_GROUP_NEW_FROM_DATA"}, + {ERR_FUNC(EC_F_EC_GROUP_PRECOMPUTE_MULT), "EC_GROUP_precompute_mult"}, + {ERR_FUNC(EC_F_EC_GROUP_SET_CURVE_GF2M), "EC_GROUP_set_curve_GF2m"}, + {ERR_FUNC(EC_F_EC_GROUP_SET_CURVE_GFP), "EC_GROUP_set_curve_GFp"}, + {ERR_FUNC(EC_F_EC_GROUP_SET_EXTRA_DATA), "EC_GROUP_SET_EXTRA_DATA"}, + {ERR_FUNC(EC_F_EC_GROUP_SET_GENERATOR), "EC_GROUP_set_generator"}, + {ERR_FUNC(EC_F_EC_KEY_CHECK_KEY), "EC_KEY_check_key"}, + {ERR_FUNC(EC_F_EC_KEY_COPY), "EC_KEY_copy"}, + {ERR_FUNC(EC_F_EC_KEY_GENERATE_KEY), "EC_KEY_generate_key"}, + {ERR_FUNC(EC_F_EC_KEY_NEW), "EC_KEY_new"}, + {ERR_FUNC(EC_F_EC_KEY_PRINT), "EC_KEY_print"}, + {ERR_FUNC(EC_F_EC_KEY_PRINT_FP), "EC_KEY_print_fp"}, + {ERR_FUNC(EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES), + "EC_KEY_set_public_key_affine_coordinates"}, + {ERR_FUNC(EC_F_EC_POINTS_MAKE_AFFINE), "EC_POINTs_make_affine"}, + {ERR_FUNC(EC_F_EC_POINT_ADD), "EC_POINT_add"}, + {ERR_FUNC(EC_F_EC_POINT_CMP), "EC_POINT_cmp"}, + {ERR_FUNC(EC_F_EC_POINT_COPY), "EC_POINT_copy"}, + {ERR_FUNC(EC_F_EC_POINT_DBL), "EC_POINT_dbl"}, + {ERR_FUNC(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M), + "EC_POINT_get_affine_coordinates_GF2m"}, + {ERR_FUNC(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP), + "EC_POINT_get_affine_coordinates_GFp"}, + {ERR_FUNC(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP), + "EC_POINT_get_Jprojective_coordinates_GFp"}, + {ERR_FUNC(EC_F_EC_POINT_INVERT), "EC_POINT_invert"}, + {ERR_FUNC(EC_F_EC_POINT_IS_AT_INFINITY), "EC_POINT_is_at_infinity"}, + {ERR_FUNC(EC_F_EC_POINT_IS_ON_CURVE), "EC_POINT_is_on_curve"}, + {ERR_FUNC(EC_F_EC_POINT_MAKE_AFFINE), "EC_POINT_make_affine"}, + {ERR_FUNC(EC_F_EC_POINT_MUL), "EC_POINT_mul"}, + {ERR_FUNC(EC_F_EC_POINT_NEW), "EC_POINT_new"}, + {ERR_FUNC(EC_F_EC_POINT_OCT2POINT), "EC_POINT_oct2point"}, + {ERR_FUNC(EC_F_EC_POINT_POINT2OCT), "EC_POINT_point2oct"}, + {ERR_FUNC(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M), + "EC_POINT_set_affine_coordinates_GF2m"}, + {ERR_FUNC(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP), + "EC_POINT_set_affine_coordinates_GFp"}, + {ERR_FUNC(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M), + "EC_POINT_set_compressed_coordinates_GF2m"}, + {ERR_FUNC(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP), + "EC_POINT_set_compressed_coordinates_GFp"}, + {ERR_FUNC(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP), + "EC_POINT_set_Jprojective_coordinates_GFp"}, + {ERR_FUNC(EC_F_EC_POINT_SET_TO_INFINITY), "EC_POINT_set_to_infinity"}, + {ERR_FUNC(EC_F_EC_PRE_COMP_DUP), "EC_PRE_COMP_DUP"}, + {ERR_FUNC(EC_F_EC_PRE_COMP_NEW), "EC_PRE_COMP_NEW"}, + {ERR_FUNC(EC_F_EC_WNAF_MUL), "ec_wNAF_mul"}, + {ERR_FUNC(EC_F_EC_WNAF_PRECOMPUTE_MULT), "ec_wNAF_precompute_mult"}, + {ERR_FUNC(EC_F_I2D_ECPARAMETERS), "i2d_ECParameters"}, + {ERR_FUNC(EC_F_I2D_ECPKPARAMETERS), "i2d_ECPKParameters"}, + {ERR_FUNC(EC_F_I2D_ECPRIVATEKEY), "i2d_ECPrivateKey"}, + {ERR_FUNC(EC_F_I2O_ECPUBLICKEY), "i2o_ECPublicKey"}, + {ERR_FUNC(EC_F_NISTP224_PRE_COMP_NEW), "NISTP224_PRE_COMP_NEW"}, + {ERR_FUNC(EC_F_NISTP256_PRE_COMP_NEW), "NISTP256_PRE_COMP_NEW"}, + {ERR_FUNC(EC_F_NISTP521_PRE_COMP_NEW), "NISTP521_PRE_COMP_NEW"}, + {ERR_FUNC(EC_F_O2I_ECPUBLICKEY), "o2i_ECPublicKey"}, + {ERR_FUNC(EC_F_OLD_EC_PRIV_DECODE), "OLD_EC_PRIV_DECODE"}, + {ERR_FUNC(EC_F_PKEY_EC_CTRL), "PKEY_EC_CTRL"}, + {ERR_FUNC(EC_F_PKEY_EC_CTRL_STR), "PKEY_EC_CTRL_STR"}, + {ERR_FUNC(EC_F_PKEY_EC_DERIVE), "PKEY_EC_DERIVE"}, + {ERR_FUNC(EC_F_PKEY_EC_KEYGEN), "PKEY_EC_KEYGEN"}, + {ERR_FUNC(EC_F_PKEY_EC_PARAMGEN), "PKEY_EC_PARAMGEN"}, + {ERR_FUNC(EC_F_PKEY_EC_SIGN), "PKEY_EC_SIGN"}, + {0, NULL} +}; + +static ERR_STRING_DATA EC_str_reasons[] = { + {ERR_REASON(EC_R_ASN1_ERROR), "asn1 error"}, + {ERR_REASON(EC_R_ASN1_UNKNOWN_FIELD), "asn1 unknown field"}, + {ERR_REASON(EC_R_BIGNUM_OUT_OF_RANGE), "bignum out of range"}, + {ERR_REASON(EC_R_BUFFER_TOO_SMALL), "buffer too small"}, + {ERR_REASON(EC_R_COORDINATES_OUT_OF_RANGE), "coordinates out of range"}, + {ERR_REASON(EC_R_D2I_ECPKPARAMETERS_FAILURE), + "d2i ecpkparameters failure"}, + {ERR_REASON(EC_R_DECODE_ERROR), "decode error"}, + {ERR_REASON(EC_R_DISCRIMINANT_IS_ZERO), "discriminant is zero"}, + {ERR_REASON(EC_R_EC_GROUP_NEW_BY_NAME_FAILURE), + "ec group new by name failure"}, + {ERR_REASON(EC_R_FIELD_TOO_LARGE), "field too large"}, + {ERR_REASON(EC_R_GF2M_NOT_SUPPORTED), "gf2m not supported"}, + {ERR_REASON(EC_R_GROUP2PKPARAMETERS_FAILURE), + "group2pkparameters failure"}, + {ERR_REASON(EC_R_I2D_ECPKPARAMETERS_FAILURE), + "i2d ecpkparameters failure"}, + {ERR_REASON(EC_R_INCOMPATIBLE_OBJECTS), "incompatible objects"}, + {ERR_REASON(EC_R_INVALID_ARGUMENT), "invalid argument"}, + {ERR_REASON(EC_R_INVALID_COMPRESSED_POINT), "invalid compressed point"}, + {ERR_REASON(EC_R_INVALID_COMPRESSION_BIT), "invalid compression bit"}, + {ERR_REASON(EC_R_INVALID_CURVE), "invalid curve"}, + {ERR_REASON(EC_R_INVALID_DIGEST), "invalid digest"}, + {ERR_REASON(EC_R_INVALID_DIGEST_TYPE), "invalid digest type"}, + {ERR_REASON(EC_R_INVALID_ENCODING), "invalid encoding"}, + {ERR_REASON(EC_R_INVALID_FIELD), "invalid field"}, + {ERR_REASON(EC_R_INVALID_FORM), "invalid form"}, + {ERR_REASON(EC_R_INVALID_GROUP_ORDER), "invalid group order"}, + {ERR_REASON(EC_R_INVALID_PENTANOMIAL_BASIS), "invalid pentanomial basis"}, + {ERR_REASON(EC_R_INVALID_PRIVATE_KEY), "invalid private key"}, + {ERR_REASON(EC_R_INVALID_TRINOMIAL_BASIS), "invalid trinomial basis"}, + {ERR_REASON(EC_R_KDF_PARAMETER_ERROR), "kdf parameter error"}, + {ERR_REASON(EC_R_KEYS_NOT_SET), "keys not set"}, + {ERR_REASON(EC_R_MISSING_PARAMETERS), "missing parameters"}, + {ERR_REASON(EC_R_MISSING_PRIVATE_KEY), "missing private key"}, + {ERR_REASON(EC_R_NOT_A_NIST_PRIME), "not a NIST prime"}, + {ERR_REASON(EC_R_NOT_A_SUPPORTED_NIST_PRIME), + "not a supported NIST prime"}, + {ERR_REASON(EC_R_NOT_IMPLEMENTED), "not implemented"}, + {ERR_REASON(EC_R_NOT_INITIALIZED), "not initialized"}, + {ERR_REASON(EC_R_NO_FIELD_MOD), "no field mod"}, + {ERR_REASON(EC_R_NO_PARAMETERS_SET), "no parameters set"}, + {ERR_REASON(EC_R_PASSED_NULL_PARAMETER), "passed null parameter"}, + {ERR_REASON(EC_R_PEER_KEY_ERROR), "peer key error"}, + {ERR_REASON(EC_R_PKPARAMETERS2GROUP_FAILURE), + "pkparameters2group failure"}, + {ERR_REASON(EC_R_POINT_AT_INFINITY), "point at infinity"}, + {ERR_REASON(EC_R_POINT_IS_NOT_ON_CURVE), "point is not on curve"}, + {ERR_REASON(EC_R_SHARED_INFO_ERROR), "shared info error"}, + {ERR_REASON(EC_R_SLOT_FULL), "slot full"}, + {ERR_REASON(EC_R_UNDEFINED_GENERATOR), "undefined generator"}, + {ERR_REASON(EC_R_UNDEFINED_ORDER), "undefined order"}, + {ERR_REASON(EC_R_UNKNOWN_GROUP), "unknown group"}, + {ERR_REASON(EC_R_UNKNOWN_ORDER), "unknown order"}, + {ERR_REASON(EC_R_UNSUPPORTED_FIELD), "unsupported field"}, + {ERR_REASON(EC_R_WRONG_CURVE_PARAMETERS), "wrong curve parameters"}, + {ERR_REASON(EC_R_WRONG_ORDER), "wrong order"}, + {0, NULL} +}; + +#endif + +void ERR_load_EC_strings(void) +{ +#ifndef OPENSSL_NO_ERR + + if (ERR_func_error_string(EC_str_functs[0].error) == NULL) { + ERR_load_strings(0, EC_str_functs); + ERR_load_strings(0, EC_str_reasons); + } +#endif +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_key.c b/Cryptlib/OpenSSL/crypto/ec/ec_key.c new file mode 100644 index 0000000..456080e --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_key.c @@ -0,0 +1,564 @@ +/* crypto/ec/ec_key.c */ +/* + * Written by Nils Larsch for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions originally developed by SUN MICROSYSTEMS, INC., and + * contributed to the OpenSSL project. + */ + +#include +#include "ec_lcl.h" +#include +#ifdef OPENSSL_FIPS +# include +#endif + +EC_KEY *EC_KEY_new(void) +{ + EC_KEY *ret; + + ret = (EC_KEY *)OPENSSL_malloc(sizeof(EC_KEY)); + if (ret == NULL) { + ECerr(EC_F_EC_KEY_NEW, ERR_R_MALLOC_FAILURE); + return (NULL); + } + + ret->version = 1; + ret->flags = 0; + ret->group = NULL; + ret->pub_key = NULL; + ret->priv_key = NULL; + ret->enc_flag = 0; + ret->conv_form = POINT_CONVERSION_UNCOMPRESSED; + ret->references = 1; + ret->method_data = NULL; + return (ret); +} + +EC_KEY *EC_KEY_new_by_curve_name(int nid) +{ + EC_KEY *ret = EC_KEY_new(); + if (ret == NULL) + return NULL; + ret->group = EC_GROUP_new_by_curve_name(nid); + if (ret->group == NULL) { + EC_KEY_free(ret); + return NULL; + } + return ret; +} + +void EC_KEY_free(EC_KEY *r) +{ + int i; + + if (r == NULL) + return; + + i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_EC); +#ifdef REF_PRINT + REF_PRINT("EC_KEY", r); +#endif + if (i > 0) + return; +#ifdef REF_CHECK + if (i < 0) { + fprintf(stderr, "EC_KEY_free, bad reference count\n"); + abort(); + } +#endif + + if (r->group != NULL) + EC_GROUP_free(r->group); + if (r->pub_key != NULL) + EC_POINT_free(r->pub_key); + if (r->priv_key != NULL) + BN_clear_free(r->priv_key); + + EC_EX_DATA_free_all_data(&r->method_data); + + OPENSSL_cleanse((void *)r, sizeof(EC_KEY)); + + OPENSSL_free(r); +} + +EC_KEY *EC_KEY_copy(EC_KEY *dest, const EC_KEY *src) +{ + EC_EXTRA_DATA *d; + + if (dest == NULL || src == NULL) { + ECerr(EC_F_EC_KEY_COPY, ERR_R_PASSED_NULL_PARAMETER); + return NULL; + } + /* copy the parameters */ + if (src->group) { + const EC_METHOD *meth = EC_GROUP_method_of(src->group); + /* clear the old group */ + if (dest->group) + EC_GROUP_free(dest->group); + dest->group = EC_GROUP_new(meth); + if (dest->group == NULL) + return NULL; + if (!EC_GROUP_copy(dest->group, src->group)) + return NULL; + } + /* copy the public key */ + if (src->pub_key && src->group) { + if (dest->pub_key) + EC_POINT_free(dest->pub_key); + dest->pub_key = EC_POINT_new(src->group); + if (dest->pub_key == NULL) + return NULL; + if (!EC_POINT_copy(dest->pub_key, src->pub_key)) + return NULL; + } + /* copy the private key */ + if (src->priv_key) { + if (dest->priv_key == NULL) { + dest->priv_key = BN_new(); + if (dest->priv_key == NULL) + return NULL; + } + if (!BN_copy(dest->priv_key, src->priv_key)) + return NULL; + } + /* copy method/extra data */ + EC_EX_DATA_free_all_data(&dest->method_data); + + for (d = src->method_data; d != NULL; d = d->next) { + void *t = d->dup_func(d->data); + + if (t == NULL) + return 0; + if (!EC_EX_DATA_set_data + (&dest->method_data, t, d->dup_func, d->free_func, + d->clear_free_func)) + return 0; + } + + /* copy the rest */ + dest->enc_flag = src->enc_flag; + dest->conv_form = src->conv_form; + dest->version = src->version; + dest->flags = src->flags; + + return dest; +} + +EC_KEY *EC_KEY_dup(const EC_KEY *ec_key) +{ + EC_KEY *ret = EC_KEY_new(); + if (ret == NULL) + return NULL; + if (EC_KEY_copy(ret, ec_key) == NULL) { + EC_KEY_free(ret); + return NULL; + } + return ret; +} + +int EC_KEY_up_ref(EC_KEY *r) +{ + int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_EC); +#ifdef REF_PRINT + REF_PRINT("EC_KEY", r); +#endif +#ifdef REF_CHECK + if (i < 2) { + fprintf(stderr, "EC_KEY_up, bad reference count\n"); + abort(); + } +#endif + return ((i > 1) ? 1 : 0); +} + +int EC_KEY_generate_key(EC_KEY *eckey) +{ + int ok = 0; + BN_CTX *ctx = NULL; + BIGNUM *priv_key = NULL, *order = NULL; + EC_POINT *pub_key = NULL; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return FIPS_ec_key_generate_key(eckey); +#endif + + if (!eckey || !eckey->group) { + ECerr(EC_F_EC_KEY_GENERATE_KEY, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + if ((order = BN_new()) == NULL) + goto err; + if ((ctx = BN_CTX_new()) == NULL) + goto err; + + if (eckey->priv_key == NULL) { + priv_key = BN_new(); + if (priv_key == NULL) + goto err; + } else + priv_key = eckey->priv_key; + + if (!EC_GROUP_get_order(eckey->group, order, ctx)) + goto err; + + do + if (!BN_rand_range(priv_key, order)) + goto err; + while (BN_is_zero(priv_key)) ; + + if (eckey->pub_key == NULL) { + pub_key = EC_POINT_new(eckey->group); + if (pub_key == NULL) + goto err; + } else + pub_key = eckey->pub_key; + + if (!EC_POINT_mul(eckey->group, pub_key, priv_key, NULL, NULL, ctx)) + goto err; + + eckey->priv_key = priv_key; + eckey->pub_key = pub_key; + + ok = 1; + + err: + if (order) + BN_free(order); + if (pub_key != NULL && eckey->pub_key == NULL) + EC_POINT_free(pub_key); + if (priv_key != NULL && eckey->priv_key == NULL) + BN_free(priv_key); + if (ctx != NULL) + BN_CTX_free(ctx); + return (ok); +} + +int EC_KEY_check_key(const EC_KEY *eckey) +{ + int ok = 0; + BN_CTX *ctx = NULL; + const BIGNUM *order = NULL; + EC_POINT *point = NULL; + + if (!eckey || !eckey->group || !eckey->pub_key) { + ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + if (EC_POINT_is_at_infinity(eckey->group, eckey->pub_key)) { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_POINT_AT_INFINITY); + goto err; + } + + if ((ctx = BN_CTX_new()) == NULL) + goto err; + if ((point = EC_POINT_new(eckey->group)) == NULL) + goto err; + + /* testing whether the pub_key is on the elliptic curve */ + if (EC_POINT_is_on_curve(eckey->group, eckey->pub_key, ctx) <= 0) { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_POINT_IS_NOT_ON_CURVE); + goto err; + } + /* testing whether pub_key * order is the point at infinity */ + order = &eckey->group->order; + if (BN_is_zero(order)) { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_INVALID_GROUP_ORDER); + goto err; + } + if (!EC_POINT_mul(eckey->group, point, NULL, eckey->pub_key, order, ctx)) { + ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_EC_LIB); + goto err; + } + if (!EC_POINT_is_at_infinity(eckey->group, point)) { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_WRONG_ORDER); + goto err; + } + /* + * in case the priv_key is present : check if generator * priv_key == + * pub_key + */ + if (eckey->priv_key) { + if (BN_cmp(eckey->priv_key, order) >= 0) { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_WRONG_ORDER); + goto err; + } + if (!EC_POINT_mul(eckey->group, point, eckey->priv_key, + NULL, NULL, ctx)) { + ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_EC_LIB); + goto err; + } + if (EC_POINT_cmp(eckey->group, point, eckey->pub_key, ctx) != 0) { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_INVALID_PRIVATE_KEY); + goto err; + } + } + ok = 1; + err: + if (ctx != NULL) + BN_CTX_free(ctx); + if (point != NULL) + EC_POINT_free(point); + return (ok); +} + +int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, + BIGNUM *y) +{ + BN_CTX *ctx = NULL; + BIGNUM *tx, *ty; + EC_POINT *point = NULL; + int ok = 0; +#ifndef OPENSSL_NO_EC2M + int tmp_nid, is_char_two = 0; +#endif + + if (!key || !key->group || !x || !y) { + ECerr(EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES, + ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + BN_CTX_start(ctx); + point = EC_POINT_new(key->group); + + if (!point) + goto err; + + tx = BN_CTX_get(ctx); + ty = BN_CTX_get(ctx); + if (ty == NULL) + goto err; + +#ifndef OPENSSL_NO_EC2M + tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(key->group)); + + if (tmp_nid == NID_X9_62_characteristic_two_field) + is_char_two = 1; + + if (is_char_two) { + if (!EC_POINT_set_affine_coordinates_GF2m(key->group, point, + x, y, ctx)) + goto err; + if (!EC_POINT_get_affine_coordinates_GF2m(key->group, point, + tx, ty, ctx)) + goto err; + } else +#endif + { + if (!EC_POINT_set_affine_coordinates_GFp(key->group, point, + x, y, ctx)) + goto err; + if (!EC_POINT_get_affine_coordinates_GFp(key->group, point, + tx, ty, ctx)) + goto err; + } + /* + * Check if retrieved coordinates match originals: if not values are out + * of range. + */ + if (BN_cmp(x, tx) || BN_cmp(y, ty)) { + ECerr(EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES, + EC_R_COORDINATES_OUT_OF_RANGE); + goto err; + } + + if (!EC_KEY_set_public_key(key, point)) + goto err; + + if (EC_KEY_check_key(key) == 0) + goto err; + + ok = 1; + + err: + BN_CTX_end(ctx); + BN_CTX_free(ctx); + EC_POINT_free(point); + return ok; + +} + +const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key) +{ + return key->group; +} + +int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group) +{ + if (key->group != NULL) + EC_GROUP_free(key->group); + key->group = EC_GROUP_dup(group); + return (key->group == NULL) ? 0 : 1; +} + +const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key) +{ + return key->priv_key; +} + +int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *priv_key) +{ + if (key->priv_key) + BN_clear_free(key->priv_key); + key->priv_key = BN_dup(priv_key); + return (key->priv_key == NULL) ? 0 : 1; +} + +const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key) +{ + return key->pub_key; +} + +int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub_key) +{ + if (key->pub_key != NULL) + EC_POINT_free(key->pub_key); + key->pub_key = EC_POINT_dup(pub_key, key->group); + return (key->pub_key == NULL) ? 0 : 1; +} + +unsigned int EC_KEY_get_enc_flags(const EC_KEY *key) +{ + return key->enc_flag; +} + +void EC_KEY_set_enc_flags(EC_KEY *key, unsigned int flags) +{ + key->enc_flag = flags; +} + +point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key) +{ + return key->conv_form; +} + +void EC_KEY_set_conv_form(EC_KEY *key, point_conversion_form_t cform) +{ + key->conv_form = cform; + if (key->group != NULL) + EC_GROUP_set_point_conversion_form(key->group, cform); +} + +void *EC_KEY_get_key_method_data(EC_KEY *key, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)) +{ + void *ret; + + CRYPTO_r_lock(CRYPTO_LOCK_EC); + ret = + EC_EX_DATA_get_data(key->method_data, dup_func, free_func, + clear_free_func); + CRYPTO_r_unlock(CRYPTO_LOCK_EC); + + return ret; +} + +void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)) +{ + EC_EXTRA_DATA *ex_data; + + CRYPTO_w_lock(CRYPTO_LOCK_EC); + ex_data = + EC_EX_DATA_get_data(key->method_data, dup_func, free_func, + clear_free_func); + if (ex_data == NULL) + EC_EX_DATA_set_data(&key->method_data, data, dup_func, free_func, + clear_free_func); + CRYPTO_w_unlock(CRYPTO_LOCK_EC); + + return ex_data; +} + +void EC_KEY_set_asn1_flag(EC_KEY *key, int flag) +{ + if (key->group != NULL) + EC_GROUP_set_asn1_flag(key->group, flag); +} + +int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx) +{ + if (key->group == NULL) + return 0; + return EC_GROUP_precompute_mult(key->group, ctx); +} + +int EC_KEY_get_flags(const EC_KEY *key) +{ + return key->flags; +} + +void EC_KEY_set_flags(EC_KEY *key, int flags) +{ + key->flags |= flags; +} + +void EC_KEY_clear_flags(EC_KEY *key, int flags) +{ + key->flags &= ~flags; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_lcl.h b/Cryptlib/OpenSSL/crypto/ec/ec_lcl.h new file mode 100644 index 0000000..68a1550 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_lcl.h @@ -0,0 +1,470 @@ +/* crypto/ec/ec_lcl.h */ +/* + * Originally written by Bodo Moeller for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2010 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * + * Portions of the attached software ("Contribution") are developed by + * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. + * + * The Contribution is licensed pursuant to the OpenSSL open source + * license provided above. + * + * The elliptic curve binary polynomial software is originally written by + * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. + * + */ + +#include + +#include +#include +#include + +#if defined(__SUNPRO_C) +# if __SUNPRO_C >= 0x520 +# pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) +# endif +#endif + +/* Use default functions for poin2oct, oct2point and compressed coordinates */ +#define EC_FLAGS_DEFAULT_OCT 0x1 + +/* + * Structure details are not part of the exported interface, so all this may + * change in future versions. + */ + +struct ec_method_st { + /* Various method flags */ + int flags; + /* used by EC_METHOD_get_field_type: */ + int field_type; /* a NID */ + /* + * used by EC_GROUP_new, EC_GROUP_free, EC_GROUP_clear_free, + * EC_GROUP_copy: + */ + int (*group_init) (EC_GROUP *); + void (*group_finish) (EC_GROUP *); + void (*group_clear_finish) (EC_GROUP *); + int (*group_copy) (EC_GROUP *, const EC_GROUP *); + /* used by EC_GROUP_set_curve_GFp, EC_GROUP_get_curve_GFp, */ + /* EC_GROUP_set_curve_GF2m, and EC_GROUP_get_curve_GF2m: */ + int (*group_set_curve) (EC_GROUP *, const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); + int (*group_get_curve) (const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b, + BN_CTX *); + /* used by EC_GROUP_get_degree: */ + int (*group_get_degree) (const EC_GROUP *); + /* used by EC_GROUP_check: */ + int (*group_check_discriminant) (const EC_GROUP *, BN_CTX *); + /* + * used by EC_POINT_new, EC_POINT_free, EC_POINT_clear_free, + * EC_POINT_copy: + */ + int (*point_init) (EC_POINT *); + void (*point_finish) (EC_POINT *); + void (*point_clear_finish) (EC_POINT *); + int (*point_copy) (EC_POINT *, const EC_POINT *); + /*- + * used by EC_POINT_set_to_infinity, + * EC_POINT_set_Jprojective_coordinates_GFp, + * EC_POINT_get_Jprojective_coordinates_GFp, + * EC_POINT_set_affine_coordinates_GFp, ..._GF2m, + * EC_POINT_get_affine_coordinates_GFp, ..._GF2m, + * EC_POINT_set_compressed_coordinates_GFp, ..._GF2m: + */ + int (*point_set_to_infinity) (const EC_GROUP *, EC_POINT *); + int (*point_set_Jprojective_coordinates_GFp) (const EC_GROUP *, + EC_POINT *, const BIGNUM *x, + const BIGNUM *y, + const BIGNUM *z, BN_CTX *); + int (*point_get_Jprojective_coordinates_GFp) (const EC_GROUP *, + const EC_POINT *, BIGNUM *x, + BIGNUM *y, BIGNUM *z, + BN_CTX *); + int (*point_set_affine_coordinates) (const EC_GROUP *, EC_POINT *, + const BIGNUM *x, const BIGNUM *y, + BN_CTX *); + int (*point_get_affine_coordinates) (const EC_GROUP *, const EC_POINT *, + BIGNUM *x, BIGNUM *y, BN_CTX *); + int (*point_set_compressed_coordinates) (const EC_GROUP *, EC_POINT *, + const BIGNUM *x, int y_bit, + BN_CTX *); + /* used by EC_POINT_point2oct, EC_POINT_oct2point: */ + size_t (*point2oct) (const EC_GROUP *, const EC_POINT *, + point_conversion_form_t form, unsigned char *buf, + size_t len, BN_CTX *); + int (*oct2point) (const EC_GROUP *, EC_POINT *, const unsigned char *buf, + size_t len, BN_CTX *); + /* used by EC_POINT_add, EC_POINT_dbl, ECP_POINT_invert: */ + int (*add) (const EC_GROUP *, EC_POINT *r, const EC_POINT *a, + const EC_POINT *b, BN_CTX *); + int (*dbl) (const EC_GROUP *, EC_POINT *r, const EC_POINT *a, BN_CTX *); + int (*invert) (const EC_GROUP *, EC_POINT *, BN_CTX *); + /* + * used by EC_POINT_is_at_infinity, EC_POINT_is_on_curve, EC_POINT_cmp: + */ + int (*is_at_infinity) (const EC_GROUP *, const EC_POINT *); + int (*is_on_curve) (const EC_GROUP *, const EC_POINT *, BN_CTX *); + int (*point_cmp) (const EC_GROUP *, const EC_POINT *a, const EC_POINT *b, + BN_CTX *); + /* used by EC_POINT_make_affine, EC_POINTs_make_affine: */ + int (*make_affine) (const EC_GROUP *, EC_POINT *, BN_CTX *); + int (*points_make_affine) (const EC_GROUP *, size_t num, EC_POINT *[], + BN_CTX *); + /* + * used by EC_POINTs_mul, EC_POINT_mul, EC_POINT_precompute_mult, + * EC_POINT_have_precompute_mult (default implementations are used if the + * 'mul' pointer is 0): + */ + int (*mul) (const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar, + size_t num, const EC_POINT *points[], const BIGNUM *scalars[], + BN_CTX *); + int (*precompute_mult) (EC_GROUP *group, BN_CTX *); + int (*have_precompute_mult) (const EC_GROUP *group); + /* internal functions */ + /* + * 'field_mul', 'field_sqr', and 'field_div' can be used by 'add' and + * 'dbl' so that the same implementations of point operations can be used + * with different optimized implementations of expensive field + * operations: + */ + int (*field_mul) (const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); + int (*field_sqr) (const EC_GROUP *, BIGNUM *r, const BIGNUM *a, BN_CTX *); + int (*field_div) (const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); + /* e.g. to Montgomery */ + int (*field_encode) (const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); + /* e.g. from Montgomery */ + int (*field_decode) (const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); + int (*field_set_to_one) (const EC_GROUP *, BIGNUM *r, BN_CTX *); +} /* EC_METHOD */ ; + +typedef struct ec_extra_data_st { + struct ec_extra_data_st *next; + void *data; + void *(*dup_func) (void *); + void (*free_func) (void *); + void (*clear_free_func) (void *); +} EC_EXTRA_DATA; /* used in EC_GROUP */ + +struct ec_group_st { + const EC_METHOD *meth; + EC_POINT *generator; /* optional */ + BIGNUM order, cofactor; + int curve_name; /* optional NID for named curve */ + int asn1_flag; /* flag to control the asn1 encoding */ + /* + * Kludge: upper bit of ans1_flag is used to denote structure + * version. Is set, then last field is present. This is done + * for interoperation with FIPS code. + */ +#define EC_GROUP_ASN1_FLAG_MASK 0x7fffffff +#define EC_GROUP_VERSION(p) (p->asn1_flag&~EC_GROUP_ASN1_FLAG_MASK) + point_conversion_form_t asn1_form; + unsigned char *seed; /* optional seed for parameters (appears in + * ASN1) */ + size_t seed_len; + EC_EXTRA_DATA *extra_data; /* linked list */ + /* + * The following members are handled by the method functions, even if + * they appear generic + */ + /* + * Field specification. For curves over GF(p), this is the modulus; for + * curves over GF(2^m), this is the irreducible polynomial defining the + * field. + */ + BIGNUM field; + /* + * Field specification for curves over GF(2^m). The irreducible f(t) is + * then of the form: t^poly[0] + t^poly[1] + ... + t^poly[k] where m = + * poly[0] > poly[1] > ... > poly[k] = 0. The array is terminated with + * poly[k+1]=-1. All elliptic curve irreducibles have at most 5 non-zero + * terms. + */ + int poly[6]; + /* + * Curve coefficients. (Here the assumption is that BIGNUMs can be used + * or abused for all kinds of fields, not just GF(p).) For characteristic + * > 3, the curve is defined by a Weierstrass equation of the form y^2 = + * x^3 + a*x + b. For characteristic 2, the curve is defined by an + * equation of the form y^2 + x*y = x^3 + a*x^2 + b. + */ + BIGNUM a, b; + /* enable optimized point arithmetics for special case */ + int a_is_minus3; + /* method-specific (e.g., Montgomery structure) */ + void *field_data1; + /* method-specific */ + void *field_data2; + /* method-specific */ + int (*field_mod_func) (BIGNUM *, const BIGNUM *, const BIGNUM *, + BN_CTX *); + BN_MONT_CTX *mont_data; /* data for ECDSA inverse */ +} /* EC_GROUP */ ; + +struct ec_key_st { + int version; + EC_GROUP *group; + EC_POINT *pub_key; + BIGNUM *priv_key; + unsigned int enc_flag; + point_conversion_form_t conv_form; + int references; + int flags; + EC_EXTRA_DATA *method_data; +} /* EC_KEY */ ; + +/* + * Basically a 'mixin' for extra data, but available for EC_GROUPs/EC_KEYs + * only (with visibility limited to 'package' level for now). We use the + * function pointers as index for retrieval; this obviates global + * ex_data-style index tables. + */ +int EC_EX_DATA_set_data(EC_EXTRA_DATA **, void *data, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)); +void *EC_EX_DATA_get_data(const EC_EXTRA_DATA *, void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)); +void EC_EX_DATA_free_data(EC_EXTRA_DATA **, void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)); +void EC_EX_DATA_clear_free_data(EC_EXTRA_DATA **, void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)); +void EC_EX_DATA_free_all_data(EC_EXTRA_DATA **); +void EC_EX_DATA_clear_free_all_data(EC_EXTRA_DATA **); + +struct ec_point_st { + const EC_METHOD *meth; + /* + * All members except 'meth' are handled by the method functions, even if + * they appear generic + */ + BIGNUM X; + BIGNUM Y; + BIGNUM Z; /* Jacobian projective coordinates: (X, Y, Z) + * represents (X/Z^2, Y/Z^3) if Z != 0 */ + int Z_is_one; /* enable optimized point arithmetics for + * special case */ +} /* EC_POINT */ ; + +/* + * method functions in ec_mult.c (ec_lib.c uses these as defaults if + * group->method->mul is 0) + */ +int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar, + size_t num, const EC_POINT *points[], const BIGNUM *scalars[], + BN_CTX *); +int ec_wNAF_precompute_mult(EC_GROUP *group, BN_CTX *); +int ec_wNAF_have_precompute_mult(const EC_GROUP *group); + +/* method functions in ecp_smpl.c */ +int ec_GFp_simple_group_init(EC_GROUP *); +void ec_GFp_simple_group_finish(EC_GROUP *); +void ec_GFp_simple_group_clear_finish(EC_GROUP *); +int ec_GFp_simple_group_copy(EC_GROUP *, const EC_GROUP *); +int ec_GFp_simple_group_set_curve(EC_GROUP *, const BIGNUM *p, + const BIGNUM *a, const BIGNUM *b, BN_CTX *); +int ec_GFp_simple_group_get_curve(const EC_GROUP *, BIGNUM *p, BIGNUM *a, + BIGNUM *b, BN_CTX *); +int ec_GFp_simple_group_get_degree(const EC_GROUP *); +int ec_GFp_simple_group_check_discriminant(const EC_GROUP *, BN_CTX *); +int ec_GFp_simple_point_init(EC_POINT *); +void ec_GFp_simple_point_finish(EC_POINT *); +void ec_GFp_simple_point_clear_finish(EC_POINT *); +int ec_GFp_simple_point_copy(EC_POINT *, const EC_POINT *); +int ec_GFp_simple_point_set_to_infinity(const EC_GROUP *, EC_POINT *); +int ec_GFp_simple_set_Jprojective_coordinates_GFp(const EC_GROUP *, + EC_POINT *, const BIGNUM *x, + const BIGNUM *y, + const BIGNUM *z, BN_CTX *); +int ec_GFp_simple_get_Jprojective_coordinates_GFp(const EC_GROUP *, + const EC_POINT *, BIGNUM *x, + BIGNUM *y, BIGNUM *z, + BN_CTX *); +int ec_GFp_simple_point_set_affine_coordinates(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, + const BIGNUM *y, BN_CTX *); +int ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *, + const EC_POINT *, BIGNUM *x, + BIGNUM *y, BN_CTX *); +int ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, int y_bit, + BN_CTX *); +size_t ec_GFp_simple_point2oct(const EC_GROUP *, const EC_POINT *, + point_conversion_form_t form, + unsigned char *buf, size_t len, BN_CTX *); +int ec_GFp_simple_oct2point(const EC_GROUP *, EC_POINT *, + const unsigned char *buf, size_t len, BN_CTX *); +int ec_GFp_simple_add(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, + const EC_POINT *b, BN_CTX *); +int ec_GFp_simple_dbl(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, + BN_CTX *); +int ec_GFp_simple_invert(const EC_GROUP *, EC_POINT *, BN_CTX *); +int ec_GFp_simple_is_at_infinity(const EC_GROUP *, const EC_POINT *); +int ec_GFp_simple_is_on_curve(const EC_GROUP *, const EC_POINT *, BN_CTX *); +int ec_GFp_simple_cmp(const EC_GROUP *, const EC_POINT *a, const EC_POINT *b, + BN_CTX *); +int ec_GFp_simple_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *); +int ec_GFp_simple_points_make_affine(const EC_GROUP *, size_t num, + EC_POINT *[], BN_CTX *); +int ec_GFp_simple_field_mul(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); +int ec_GFp_simple_field_sqr(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); + +/* method functions in ecp_mont.c */ +int ec_GFp_mont_group_init(EC_GROUP *); +int ec_GFp_mont_group_set_curve(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); +void ec_GFp_mont_group_finish(EC_GROUP *); +void ec_GFp_mont_group_clear_finish(EC_GROUP *); +int ec_GFp_mont_group_copy(EC_GROUP *, const EC_GROUP *); +int ec_GFp_mont_field_mul(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); +int ec_GFp_mont_field_sqr(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); +int ec_GFp_mont_field_encode(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); +int ec_GFp_mont_field_decode(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); +int ec_GFp_mont_field_set_to_one(const EC_GROUP *, BIGNUM *r, BN_CTX *); + +/* method functions in ecp_nist.c */ +int ec_GFp_nist_group_copy(EC_GROUP *dest, const EC_GROUP *src); +int ec_GFp_nist_group_set_curve(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); +int ec_GFp_nist_field_mul(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); +int ec_GFp_nist_field_sqr(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); + +/* method functions in ec2_smpl.c */ +int ec_GF2m_simple_group_init(EC_GROUP *); +void ec_GF2m_simple_group_finish(EC_GROUP *); +void ec_GF2m_simple_group_clear_finish(EC_GROUP *); +int ec_GF2m_simple_group_copy(EC_GROUP *, const EC_GROUP *); +int ec_GF2m_simple_group_set_curve(EC_GROUP *, const BIGNUM *p, + const BIGNUM *a, const BIGNUM *b, + BN_CTX *); +int ec_GF2m_simple_group_get_curve(const EC_GROUP *, BIGNUM *p, BIGNUM *a, + BIGNUM *b, BN_CTX *); +int ec_GF2m_simple_group_get_degree(const EC_GROUP *); +int ec_GF2m_simple_group_check_discriminant(const EC_GROUP *, BN_CTX *); +int ec_GF2m_simple_point_init(EC_POINT *); +void ec_GF2m_simple_point_finish(EC_POINT *); +void ec_GF2m_simple_point_clear_finish(EC_POINT *); +int ec_GF2m_simple_point_copy(EC_POINT *, const EC_POINT *); +int ec_GF2m_simple_point_set_to_infinity(const EC_GROUP *, EC_POINT *); +int ec_GF2m_simple_point_set_affine_coordinates(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, + const BIGNUM *y, BN_CTX *); +int ec_GF2m_simple_point_get_affine_coordinates(const EC_GROUP *, + const EC_POINT *, BIGNUM *x, + BIGNUM *y, BN_CTX *); +int ec_GF2m_simple_set_compressed_coordinates(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, int y_bit, + BN_CTX *); +size_t ec_GF2m_simple_point2oct(const EC_GROUP *, const EC_POINT *, + point_conversion_form_t form, + unsigned char *buf, size_t len, BN_CTX *); +int ec_GF2m_simple_oct2point(const EC_GROUP *, EC_POINT *, + const unsigned char *buf, size_t len, BN_CTX *); +int ec_GF2m_simple_add(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, + const EC_POINT *b, BN_CTX *); +int ec_GF2m_simple_dbl(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, + BN_CTX *); +int ec_GF2m_simple_invert(const EC_GROUP *, EC_POINT *, BN_CTX *); +int ec_GF2m_simple_is_at_infinity(const EC_GROUP *, const EC_POINT *); +int ec_GF2m_simple_is_on_curve(const EC_GROUP *, const EC_POINT *, BN_CTX *); +int ec_GF2m_simple_cmp(const EC_GROUP *, const EC_POINT *a, const EC_POINT *b, + BN_CTX *); +int ec_GF2m_simple_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *); +int ec_GF2m_simple_points_make_affine(const EC_GROUP *, size_t num, + EC_POINT *[], BN_CTX *); +int ec_GF2m_simple_field_mul(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); +int ec_GF2m_simple_field_sqr(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + BN_CTX *); +int ec_GF2m_simple_field_div(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); + +/* method functions in ec2_mult.c */ +int ec_GF2m_simple_mul(const EC_GROUP *group, EC_POINT *r, + const BIGNUM *scalar, size_t num, + const EC_POINT *points[], const BIGNUM *scalars[], + BN_CTX *); +int ec_GF2m_precompute_mult(EC_GROUP *group, BN_CTX *ctx); +int ec_GF2m_have_precompute_mult(const EC_GROUP *group); + +int ec_precompute_mont_data(EC_GROUP *); + +#ifdef OPENSSL_FIPS +EC_GROUP *FIPS_ec_group_new_curve_gfp(const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx); +EC_GROUP *FIPS_ec_group_new_curve_gf2m(const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx); +EC_GROUP *FIPS_ec_group_new_by_curve_name(int nid); +#endif diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_lib.c b/Cryptlib/OpenSSL/crypto/ec/ec_lib.c new file mode 100644 index 0000000..4512c59 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_lib.c @@ -0,0 +1,1077 @@ +/* crypto/ec/ec_lib.c */ +/* + * Originally written by Bodo Moeller for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Binary polynomial ECC support in OpenSSL originally developed by + * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. + */ + +#include + +#include +#include + +#include "ec_lcl.h" + +const char EC_version[] = "EC" OPENSSL_VERSION_PTEXT; + +/* functions for EC_GROUP objects */ + +EC_GROUP *EC_GROUP_new(const EC_METHOD *meth) +{ + EC_GROUP *ret; + + if (meth == NULL) { + ECerr(EC_F_EC_GROUP_NEW, EC_R_SLOT_FULL); + return NULL; + } + if (meth->group_init == 0) { + ECerr(EC_F_EC_GROUP_NEW, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return NULL; + } + + ret = OPENSSL_malloc(sizeof *ret); + if (ret == NULL) { + ECerr(EC_F_EC_GROUP_NEW, ERR_R_MALLOC_FAILURE); + return NULL; + } + + ret->meth = meth; + + ret->extra_data = NULL; + ret->mont_data = NULL; + + ret->generator = NULL; + BN_init(&ret->order); + BN_init(&ret->cofactor); + + ret->curve_name = 0; + ret->asn1_flag = ~EC_GROUP_ASN1_FLAG_MASK; + ret->asn1_form = POINT_CONVERSION_UNCOMPRESSED; + + ret->seed = NULL; + ret->seed_len = 0; + + if (!meth->group_init(ret)) { + OPENSSL_free(ret); + return NULL; + } + + return ret; +} + +void EC_GROUP_free(EC_GROUP *group) +{ + if (!group) + return; + + if (group->meth->group_finish != 0) + group->meth->group_finish(group); + + EC_EX_DATA_free_all_data(&group->extra_data); + + if (EC_GROUP_VERSION(group) && group->mont_data) + BN_MONT_CTX_free(group->mont_data); + + if (group->generator != NULL) + EC_POINT_free(group->generator); + BN_free(&group->order); + BN_free(&group->cofactor); + + if (group->seed) + OPENSSL_free(group->seed); + + OPENSSL_free(group); +} + +void EC_GROUP_clear_free(EC_GROUP *group) +{ + if (!group) + return; + + if (group->meth->group_clear_finish != 0) + group->meth->group_clear_finish(group); + else if (group->meth->group_finish != 0) + group->meth->group_finish(group); + + EC_EX_DATA_clear_free_all_data(&group->extra_data); + + if (EC_GROUP_VERSION(group) && group->mont_data) + BN_MONT_CTX_free(group->mont_data); + + if (group->generator != NULL) + EC_POINT_clear_free(group->generator); + BN_clear_free(&group->order); + BN_clear_free(&group->cofactor); + + if (group->seed) { + OPENSSL_cleanse(group->seed, group->seed_len); + OPENSSL_free(group->seed); + } + + OPENSSL_cleanse(group, sizeof *group); + OPENSSL_free(group); +} + +int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src) +{ + EC_EXTRA_DATA *d; + + if (dest->meth->group_copy == 0) { + ECerr(EC_F_EC_GROUP_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (dest->meth != src->meth) { + ECerr(EC_F_EC_GROUP_COPY, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + if (dest == src) + return 1; + + EC_EX_DATA_free_all_data(&dest->extra_data); + + for (d = src->extra_data; d != NULL; d = d->next) { + void *t = d->dup_func(d->data); + + if (t == NULL) + return 0; + if (!EC_EX_DATA_set_data + (&dest->extra_data, t, d->dup_func, d->free_func, + d->clear_free_func)) + return 0; + } + + if (EC_GROUP_VERSION(src) && src->mont_data != NULL) { + if (dest->mont_data == NULL) { + dest->mont_data = BN_MONT_CTX_new(); + if (dest->mont_data == NULL) + return 0; + } + if (!BN_MONT_CTX_copy(dest->mont_data, src->mont_data)) + return 0; + } else { + /* src->generator == NULL */ + if (EC_GROUP_VERSION(dest) && dest->mont_data != NULL) { + BN_MONT_CTX_free(dest->mont_data); + dest->mont_data = NULL; + } + } + + if (src->generator != NULL) { + if (dest->generator == NULL) { + dest->generator = EC_POINT_new(dest); + if (dest->generator == NULL) + return 0; + } + if (!EC_POINT_copy(dest->generator, src->generator)) + return 0; + } else { + /* src->generator == NULL */ + if (dest->generator != NULL) { + EC_POINT_clear_free(dest->generator); + dest->generator = NULL; + } + } + + if (!BN_copy(&dest->order, &src->order)) + return 0; + if (!BN_copy(&dest->cofactor, &src->cofactor)) + return 0; + + dest->curve_name = src->curve_name; + dest->asn1_flag = src->asn1_flag; + dest->asn1_form = src->asn1_form; + + if (src->seed) { + if (dest->seed) + OPENSSL_free(dest->seed); + dest->seed = OPENSSL_malloc(src->seed_len); + if (dest->seed == NULL) + return 0; + if (!memcpy(dest->seed, src->seed, src->seed_len)) + return 0; + dest->seed_len = src->seed_len; + } else { + if (dest->seed) + OPENSSL_free(dest->seed); + dest->seed = NULL; + dest->seed_len = 0; + } + + return dest->meth->group_copy(dest, src); +} + +EC_GROUP *EC_GROUP_dup(const EC_GROUP *a) +{ + EC_GROUP *t = NULL; + int ok = 0; + + if (a == NULL) + return NULL; + + if ((t = EC_GROUP_new(a->meth)) == NULL) + return (NULL); + if (!EC_GROUP_copy(t, a)) + goto err; + + ok = 1; + + err: + if (!ok) { + if (t) + EC_GROUP_free(t); + return NULL; + } else + return t; +} + +const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group) +{ + return group->meth; +} + +int EC_METHOD_get_field_type(const EC_METHOD *meth) +{ + return meth->field_type; +} + +int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, + const BIGNUM *order, const BIGNUM *cofactor) +{ + if (generator == NULL) { + ECerr(EC_F_EC_GROUP_SET_GENERATOR, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + if (group->generator == NULL) { + group->generator = EC_POINT_new(group); + if (group->generator == NULL) + return 0; + } + if (!EC_POINT_copy(group->generator, generator)) + return 0; + + if (order != NULL) { + if (!BN_copy(&group->order, order)) + return 0; + } else + BN_zero(&group->order); + + if (cofactor != NULL) { + if (!BN_copy(&group->cofactor, cofactor)) + return 0; + } else + BN_zero(&group->cofactor); + + /* + * We ignore the return value because some groups have an order with + * factors of two, which makes the Montgomery setup fail. + * |group->mont_data| will be NULL in this case. + */ + ec_precompute_mont_data(group); + + return 1; +} + +const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group) +{ + return group->generator; +} + +BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group) +{ + return EC_GROUP_VERSION(group) ? group->mont_data : NULL; +} + +int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx) +{ + if (!BN_copy(order, &group->order)) + return 0; + + return !BN_is_zero(order); +} + +const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group) +{ + return &group->order; +} + +int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, + BN_CTX *ctx) +{ + if (!BN_copy(cofactor, &group->cofactor)) + return 0; + + return !BN_is_zero(&group->cofactor); +} + +void EC_GROUP_set_curve_name(EC_GROUP *group, int nid) +{ + group->curve_name = nid; +} + +int EC_GROUP_get_curve_name(const EC_GROUP *group) +{ + return group->curve_name; +} + +void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag) +{ + group->asn1_flag &= ~EC_GROUP_ASN1_FLAG_MASK; + group->asn1_flag |= flag & EC_GROUP_ASN1_FLAG_MASK; +} + +int EC_GROUP_get_asn1_flag(const EC_GROUP *group) +{ + return group->asn1_flag & EC_GROUP_ASN1_FLAG_MASK; +} + +void EC_GROUP_set_point_conversion_form(EC_GROUP *group, + point_conversion_form_t form) +{ + group->asn1_form = form; +} + +point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP + *group) +{ + return group->asn1_form; +} + +size_t EC_GROUP_set_seed(EC_GROUP *group, const unsigned char *p, size_t len) +{ + if (group->seed) { + OPENSSL_free(group->seed); + group->seed = NULL; + group->seed_len = 0; + } + + if (!len || !p) + return 1; + + if ((group->seed = OPENSSL_malloc(len)) == NULL) + return 0; + memcpy(group->seed, p, len); + group->seed_len = len; + + return len; +} + +unsigned char *EC_GROUP_get0_seed(const EC_GROUP *group) +{ + return group->seed; +} + +size_t EC_GROUP_get_seed_len(const EC_GROUP *group) +{ + return group->seed_len; +} + +int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx) +{ + if (group->meth->group_set_curve == 0) { + ECerr(EC_F_EC_GROUP_SET_CURVE_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + return group->meth->group_set_curve(group, p, a, b, ctx); +} + +int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, + BIGNUM *b, BN_CTX *ctx) +{ + if (group->meth->group_get_curve == 0) { + ECerr(EC_F_EC_GROUP_GET_CURVE_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + return group->meth->group_get_curve(group, p, a, b, ctx); +} + +int EC_GROUP_get_degree(const EC_GROUP *group) +{ + if (group->meth->group_get_degree == 0) { + ECerr(EC_F_EC_GROUP_GET_DEGREE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + return group->meth->group_get_degree(group); +} + +int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx) +{ + if (group->meth->group_check_discriminant == 0) { + ECerr(EC_F_EC_GROUP_CHECK_DISCRIMINANT, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + return group->meth->group_check_discriminant(group, ctx); +} + +int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx) +{ + int r = 0; + BIGNUM *a1, *a2, *a3, *b1, *b2, *b3; + BN_CTX *ctx_new = NULL; + + /* compare the field types */ + if (EC_METHOD_get_field_type(EC_GROUP_method_of(a)) != + EC_METHOD_get_field_type(EC_GROUP_method_of(b))) + return 1; + /* compare the curve name (if present in both) */ + if (EC_GROUP_get_curve_name(a) && EC_GROUP_get_curve_name(b) && + EC_GROUP_get_curve_name(a) != EC_GROUP_get_curve_name(b)) + return 1; + + if (!ctx) + ctx_new = ctx = BN_CTX_new(); + if (!ctx) + return -1; + + BN_CTX_start(ctx); + a1 = BN_CTX_get(ctx); + a2 = BN_CTX_get(ctx); + a3 = BN_CTX_get(ctx); + b1 = BN_CTX_get(ctx); + b2 = BN_CTX_get(ctx); + b3 = BN_CTX_get(ctx); + if (!b3) { + BN_CTX_end(ctx); + if (ctx_new) + BN_CTX_free(ctx); + return -1; + } + + /* + * XXX This approach assumes that the external representation of curves + * over the same field type is the same. + */ + if (!a->meth->group_get_curve(a, a1, a2, a3, ctx) || + !b->meth->group_get_curve(b, b1, b2, b3, ctx)) + r = 1; + + if (r || BN_cmp(a1, b1) || BN_cmp(a2, b2) || BN_cmp(a3, b3)) + r = 1; + + /* XXX EC_POINT_cmp() assumes that the methods are equal */ + if (r || EC_POINT_cmp(a, EC_GROUP_get0_generator(a), + EC_GROUP_get0_generator(b), ctx)) + r = 1; + + if (!r) { + /* compare the order and cofactor */ + if (!EC_GROUP_get_order(a, a1, ctx) || + !EC_GROUP_get_order(b, b1, ctx) || + !EC_GROUP_get_cofactor(a, a2, ctx) || + !EC_GROUP_get_cofactor(b, b2, ctx)) { + BN_CTX_end(ctx); + if (ctx_new) + BN_CTX_free(ctx); + return -1; + } + if (BN_cmp(a1, b1) || BN_cmp(a2, b2)) + r = 1; + } + + BN_CTX_end(ctx); + if (ctx_new) + BN_CTX_free(ctx); + + return r; +} + +/* this has 'package' visibility */ +int EC_EX_DATA_set_data(EC_EXTRA_DATA **ex_data, void *data, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)) +{ + EC_EXTRA_DATA *d; + + if (ex_data == NULL) + return 0; + + for (d = *ex_data; d != NULL; d = d->next) { + if (d->dup_func == dup_func && d->free_func == free_func + && d->clear_free_func == clear_free_func) { + ECerr(EC_F_EC_EX_DATA_SET_DATA, EC_R_SLOT_FULL); + return 0; + } + } + + if (data == NULL) + /* no explicit entry needed */ + return 1; + + d = OPENSSL_malloc(sizeof *d); + if (d == NULL) + return 0; + + d->data = data; + d->dup_func = dup_func; + d->free_func = free_func; + d->clear_free_func = clear_free_func; + + d->next = *ex_data; + *ex_data = d; + + return 1; +} + +/* this has 'package' visibility */ +void *EC_EX_DATA_get_data(const EC_EXTRA_DATA *ex_data, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)) +{ + const EC_EXTRA_DATA *d; + + for (d = ex_data; d != NULL; d = d->next) { + if (d->dup_func == dup_func && d->free_func == free_func + && d->clear_free_func == clear_free_func) + return d->data; + } + + return NULL; +} + +/* this has 'package' visibility */ +void EC_EX_DATA_free_data(EC_EXTRA_DATA **ex_data, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)) +{ + EC_EXTRA_DATA **p; + + if (ex_data == NULL) + return; + + for (p = ex_data; *p != NULL; p = &((*p)->next)) { + if ((*p)->dup_func == dup_func && (*p)->free_func == free_func + && (*p)->clear_free_func == clear_free_func) { + EC_EXTRA_DATA *next = (*p)->next; + + (*p)->free_func((*p)->data); + OPENSSL_free(*p); + + *p = next; + return; + } + } +} + +/* this has 'package' visibility */ +void EC_EX_DATA_clear_free_data(EC_EXTRA_DATA **ex_data, + void *(*dup_func) (void *), + void (*free_func) (void *), + void (*clear_free_func) (void *)) +{ + EC_EXTRA_DATA **p; + + if (ex_data == NULL) + return; + + for (p = ex_data; *p != NULL; p = &((*p)->next)) { + if ((*p)->dup_func == dup_func && (*p)->free_func == free_func + && (*p)->clear_free_func == clear_free_func) { + EC_EXTRA_DATA *next = (*p)->next; + + (*p)->clear_free_func((*p)->data); + OPENSSL_free(*p); + + *p = next; + return; + } + } +} + +/* this has 'package' visibility */ +void EC_EX_DATA_free_all_data(EC_EXTRA_DATA **ex_data) +{ + EC_EXTRA_DATA *d; + + if (ex_data == NULL) + return; + + d = *ex_data; + while (d) { + EC_EXTRA_DATA *next = d->next; + + d->free_func(d->data); + OPENSSL_free(d); + + d = next; + } + *ex_data = NULL; +} + +/* this has 'package' visibility */ +void EC_EX_DATA_clear_free_all_data(EC_EXTRA_DATA **ex_data) +{ + EC_EXTRA_DATA *d; + + if (ex_data == NULL) + return; + + d = *ex_data; + while (d) { + EC_EXTRA_DATA *next = d->next; + + d->clear_free_func(d->data); + OPENSSL_free(d); + + d = next; + } + *ex_data = NULL; +} + +/* functions for EC_POINT objects */ + +EC_POINT *EC_POINT_new(const EC_GROUP *group) +{ + EC_POINT *ret; + + if (group == NULL) { + ECerr(EC_F_EC_POINT_NEW, ERR_R_PASSED_NULL_PARAMETER); + return NULL; + } + if (group->meth->point_init == 0) { + ECerr(EC_F_EC_POINT_NEW, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return NULL; + } + + ret = OPENSSL_malloc(sizeof *ret); + if (ret == NULL) { + ECerr(EC_F_EC_POINT_NEW, ERR_R_MALLOC_FAILURE); + return NULL; + } + + ret->meth = group->meth; + + if (!ret->meth->point_init(ret)) { + OPENSSL_free(ret); + return NULL; + } + + return ret; +} + +void EC_POINT_free(EC_POINT *point) +{ + if (!point) + return; + + if (point->meth->point_finish != 0) + point->meth->point_finish(point); + OPENSSL_free(point); +} + +void EC_POINT_clear_free(EC_POINT *point) +{ + if (!point) + return; + + if (point->meth->point_clear_finish != 0) + point->meth->point_clear_finish(point); + else if (point->meth->point_finish != 0) + point->meth->point_finish(point); + OPENSSL_cleanse(point, sizeof *point); + OPENSSL_free(point); +} + +int EC_POINT_copy(EC_POINT *dest, const EC_POINT *src) +{ + if (dest->meth->point_copy == 0) { + ECerr(EC_F_EC_POINT_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (dest->meth != src->meth) { + ECerr(EC_F_EC_POINT_COPY, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + if (dest == src) + return 1; + return dest->meth->point_copy(dest, src); +} + +EC_POINT *EC_POINT_dup(const EC_POINT *a, const EC_GROUP *group) +{ + EC_POINT *t; + int r; + + if (a == NULL) + return NULL; + + t = EC_POINT_new(group); + if (t == NULL) + return (NULL); + r = EC_POINT_copy(t, a); + if (!r) { + EC_POINT_free(t); + return NULL; + } else + return t; +} + +const EC_METHOD *EC_POINT_method_of(const EC_POINT *point) +{ + return point->meth; +} + +int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point) +{ + if (group->meth->point_set_to_infinity == 0) { + ECerr(EC_F_EC_POINT_SET_TO_INFINITY, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_SET_TO_INFINITY, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->point_set_to_infinity(group, point); +} + +int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, + EC_POINT *point, const BIGNUM *x, + const BIGNUM *y, const BIGNUM *z, + BN_CTX *ctx) +{ + if (group->meth->point_set_Jprojective_coordinates_GFp == 0) { + ECerr(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP, + EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->point_set_Jprojective_coordinates_GFp(group, point, x, + y, z, ctx); +} + +int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, + const EC_POINT *point, BIGNUM *x, + BIGNUM *y, BIGNUM *z, + BN_CTX *ctx) +{ + if (group->meth->point_get_Jprojective_coordinates_GFp == 0) { + ECerr(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP, + EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->point_get_Jprojective_coordinates_GFp(group, point, x, + y, z, ctx); +} + +int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, + EC_POINT *point, const BIGNUM *x, + const BIGNUM *y, BN_CTX *ctx) +{ + if (group->meth->point_set_affine_coordinates == 0) { + ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP, + EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->point_set_affine_coordinates(group, point, x, y, ctx); +} + +int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, + const EC_POINT *point, BIGNUM *x, + BIGNUM *y, BN_CTX *ctx) +{ + if (group->meth->point_get_affine_coordinates == 0) { + ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP, + EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->point_get_affine_coordinates(group, point, x, y, ctx); +} + +int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, + const EC_POINT *b, BN_CTX *ctx) +{ + if (group->meth->add == 0) { + ECerr(EC_F_EC_POINT_ADD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if ((group->meth != r->meth) || (r->meth != a->meth) + || (a->meth != b->meth)) { + ECerr(EC_F_EC_POINT_ADD, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->add(group, r, a, b, ctx); +} + +int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, + BN_CTX *ctx) +{ + if (group->meth->dbl == 0) { + ECerr(EC_F_EC_POINT_DBL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if ((group->meth != r->meth) || (r->meth != a->meth)) { + ECerr(EC_F_EC_POINT_DBL, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->dbl(group, r, a, ctx); +} + +int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx) +{ + if (group->meth->invert == 0) { + ECerr(EC_F_EC_POINT_INVERT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != a->meth) { + ECerr(EC_F_EC_POINT_INVERT, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->invert(group, a, ctx); +} + +int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *point) +{ + if (group->meth->is_at_infinity == 0) { + ECerr(EC_F_EC_POINT_IS_AT_INFINITY, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_IS_AT_INFINITY, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->is_at_infinity(group, point); +} + +/* + * Check whether an EC_POINT is on the curve or not. Note that the return + * value for this function should NOT be treated as a boolean. Return values: + * 1: The point is on the curve + * 0: The point is not on the curve + * -1: An error occurred + */ +int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, + BN_CTX *ctx) +{ + if (group->meth->is_on_curve == 0) { + ECerr(EC_F_EC_POINT_IS_ON_CURVE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_IS_ON_CURVE, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->is_on_curve(group, point, ctx); +} + +int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, + BN_CTX *ctx) +{ + if (group->meth->point_cmp == 0) { + ECerr(EC_F_EC_POINT_CMP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return -1; + } + if ((group->meth != a->meth) || (a->meth != b->meth)) { + ECerr(EC_F_EC_POINT_CMP, EC_R_INCOMPATIBLE_OBJECTS); + return -1; + } + return group->meth->point_cmp(group, a, b, ctx); +} + +int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx) +{ + if (group->meth->make_affine == 0) { + ECerr(EC_F_EC_POINT_MAKE_AFFINE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_MAKE_AFFINE, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + return group->meth->make_affine(group, point, ctx); +} + +int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, + EC_POINT *points[], BN_CTX *ctx) +{ + size_t i; + + if (group->meth->points_make_affine == 0) { + ECerr(EC_F_EC_POINTS_MAKE_AFFINE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + for (i = 0; i < num; i++) { + if (group->meth != points[i]->meth) { + ECerr(EC_F_EC_POINTS_MAKE_AFFINE, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + } + return group->meth->points_make_affine(group, num, points, ctx); +} + +/* + * Functions for point multiplication. If group->meth->mul is 0, we use the + * wNAF-based implementations in ec_mult.c; otherwise we dispatch through + * methods. + */ + +int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar, + size_t num, const EC_POINT *points[], + const BIGNUM *scalars[], BN_CTX *ctx) +{ + if (group->meth->mul == 0) + /* use default */ + return ec_wNAF_mul(group, r, scalar, num, points, scalars, ctx); + + return group->meth->mul(group, r, scalar, num, points, scalars, ctx); +} + +int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *g_scalar, + const EC_POINT *point, const BIGNUM *p_scalar, BN_CTX *ctx) +{ + /* just a convenient interface to EC_POINTs_mul() */ + + const EC_POINT *points[1]; + const BIGNUM *scalars[1]; + + points[0] = point; + scalars[0] = p_scalar; + + return EC_POINTs_mul(group, r, g_scalar, + (point != NULL + && p_scalar != NULL), points, scalars, ctx); +} + +int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx) +{ + if (group->meth->mul == 0) + /* use default */ + return ec_wNAF_precompute_mult(group, ctx); + + if (group->meth->precompute_mult != 0) + return group->meth->precompute_mult(group, ctx); + else + return 1; /* nothing to do, so report success */ +} + +int EC_GROUP_have_precompute_mult(const EC_GROUP *group) +{ + if (group->meth->mul == 0) + /* use default */ + return ec_wNAF_have_precompute_mult(group); + + if (group->meth->have_precompute_mult != 0) + return group->meth->have_precompute_mult(group); + else + return 0; /* cannot tell whether precomputation has + * been performed */ +} + +/* + * ec_precompute_mont_data sets |group->mont_data| from |group->order| and + * returns one on success. On error it returns zero. + */ +int ec_precompute_mont_data(EC_GROUP *group) +{ + BN_CTX *ctx = BN_CTX_new(); + int ret = 0; + + if (!EC_GROUP_VERSION(group)) + goto err; + + if (group->mont_data) { + BN_MONT_CTX_free(group->mont_data); + group->mont_data = NULL; + } + + if (ctx == NULL) + goto err; + + group->mont_data = BN_MONT_CTX_new(); + if (!group->mont_data) + goto err; + + if (!BN_MONT_CTX_set(group->mont_data, &group->order, ctx)) { + BN_MONT_CTX_free(group->mont_data); + group->mont_data = NULL; + goto err; + } + + ret = 1; + + err: + + if (ctx) + BN_CTX_free(ctx); + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_mult.c b/Cryptlib/OpenSSL/crypto/ec/ec_mult.c new file mode 100644 index 0000000..23b8c30 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_mult.c @@ -0,0 +1,913 @@ +/* crypto/ec/ec_mult.c */ +/* + * Originally written by Bodo Moeller and Nils Larsch for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions of this software developed by SUN MICROSYSTEMS, INC., + * and contributed to the OpenSSL project. + */ + +#include + +#include + +#include "ec_lcl.h" + +/* + * This file implements the wNAF-based interleaving multi-exponentation method + * (); + * for multiplication with precomputation, we use wNAF splitting + * (). + */ + +/* structure for precomputed multiples of the generator */ +typedef struct ec_pre_comp_st { + const EC_GROUP *group; /* parent EC_GROUP object */ + size_t blocksize; /* block size for wNAF splitting */ + size_t numblocks; /* max. number of blocks for which we have + * precomputation */ + size_t w; /* window size */ + EC_POINT **points; /* array with pre-calculated multiples of + * generator: 'num' pointers to EC_POINT + * objects followed by a NULL */ + size_t num; /* numblocks * 2^(w-1) */ + int references; +} EC_PRE_COMP; + +/* functions to manage EC_PRE_COMP within the EC_GROUP extra_data framework */ +static void *ec_pre_comp_dup(void *); +static void ec_pre_comp_free(void *); +static void ec_pre_comp_clear_free(void *); + +static EC_PRE_COMP *ec_pre_comp_new(const EC_GROUP *group) +{ + EC_PRE_COMP *ret = NULL; + + if (!group) + return NULL; + + ret = (EC_PRE_COMP *)OPENSSL_malloc(sizeof(EC_PRE_COMP)); + if (!ret) { + ECerr(EC_F_EC_PRE_COMP_NEW, ERR_R_MALLOC_FAILURE); + return ret; + } + ret->group = group; + ret->blocksize = 8; /* default */ + ret->numblocks = 0; + ret->w = 4; /* default */ + ret->points = NULL; + ret->num = 0; + ret->references = 1; + return ret; +} + +static void *ec_pre_comp_dup(void *src_) +{ + EC_PRE_COMP *src = src_; + + /* no need to actually copy, these objects never change! */ + + CRYPTO_add(&src->references, 1, CRYPTO_LOCK_EC_PRE_COMP); + + return src_; +} + +static void ec_pre_comp_free(void *pre_) +{ + int i; + EC_PRE_COMP *pre = pre_; + + if (!pre) + return; + + i = CRYPTO_add(&pre->references, -1, CRYPTO_LOCK_EC_PRE_COMP); + if (i > 0) + return; + + if (pre->points) { + EC_POINT **p; + + for (p = pre->points; *p != NULL; p++) + EC_POINT_free(*p); + OPENSSL_free(pre->points); + } + OPENSSL_free(pre); +} + +static void ec_pre_comp_clear_free(void *pre_) +{ + int i; + EC_PRE_COMP *pre = pre_; + + if (!pre) + return; + + i = CRYPTO_add(&pre->references, -1, CRYPTO_LOCK_EC_PRE_COMP); + if (i > 0) + return; + + if (pre->points) { + EC_POINT **p; + + for (p = pre->points; *p != NULL; p++) { + EC_POINT_clear_free(*p); + OPENSSL_cleanse(p, sizeof *p); + } + OPENSSL_free(pre->points); + } + OPENSSL_cleanse(pre, sizeof *pre); + OPENSSL_free(pre); +} + +/*- + * Determine the modified width-(w+1) Non-Adjacent Form (wNAF) of 'scalar'. + * This is an array r[] of values that are either zero or odd with an + * absolute value less than 2^w satisfying + * scalar = \sum_j r[j]*2^j + * where at most one of any w+1 consecutive digits is non-zero + * with the exception that the most significant digit may be only + * w-1 zeros away from that next non-zero digit. + */ +static signed char *compute_wNAF(const BIGNUM *scalar, int w, size_t *ret_len) +{ + int window_val; + int ok = 0; + signed char *r = NULL; + int sign = 1; + int bit, next_bit, mask; + size_t len = 0, j; + + if (BN_is_zero(scalar)) { + r = OPENSSL_malloc(1); + if (!r) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_MALLOC_FAILURE); + goto err; + } + r[0] = 0; + *ret_len = 1; + return r; + } + + if (w <= 0 || w > 7) { /* 'signed char' can represent integers with + * absolute values less than 2^7 */ + ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR); + goto err; + } + bit = 1 << w; /* at most 128 */ + next_bit = bit << 1; /* at most 256 */ + mask = next_bit - 1; /* at most 255 */ + + if (BN_is_negative(scalar)) { + sign = -1; + } + + if (scalar->d == NULL || scalar->top == 0) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR); + goto err; + } + + len = BN_num_bits(scalar); + r = OPENSSL_malloc(len + 1); /* modified wNAF may be one digit longer + * than binary representation (*ret_len will + * be set to the actual length, i.e. at most + * BN_num_bits(scalar) + 1) */ + if (r == NULL) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_MALLOC_FAILURE); + goto err; + } + window_val = scalar->d[0] & mask; + j = 0; + while ((window_val != 0) || (j + w + 1 < len)) { /* if j+w+1 >= len, + * window_val will not + * increase */ + int digit = 0; + + /* 0 <= window_val <= 2^(w+1) */ + + if (window_val & 1) { + /* 0 < window_val < 2^(w+1) */ + + if (window_val & bit) { + digit = window_val - next_bit; /* -2^w < digit < 0 */ + +#if 1 /* modified wNAF */ + if (j + w + 1 >= len) { + /* + * special case for generating modified wNAFs: no new + * bits will be added into window_val, so using a + * positive digit here will decrease the total length of + * the representation + */ + + digit = window_val & (mask >> 1); /* 0 < digit < 2^w */ + } +#endif + } else { + digit = window_val; /* 0 < digit < 2^w */ + } + + if (digit <= -bit || digit >= bit || !(digit & 1)) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR); + goto err; + } + + window_val -= digit; + + /* + * now window_val is 0 or 2^(w+1) in standard wNAF generation; + * for modified window NAFs, it may also be 2^w + */ + if (window_val != 0 && window_val != next_bit + && window_val != bit) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR); + goto err; + } + } + + r[j++] = sign * digit; + + window_val >>= 1; + window_val += bit * BN_is_bit_set(scalar, j + w); + + if (window_val > next_bit) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR); + goto err; + } + } + + if (j > len + 1) { + ECerr(EC_F_COMPUTE_WNAF, ERR_R_INTERNAL_ERROR); + goto err; + } + len = j; + ok = 1; + + err: + if (!ok) { + OPENSSL_free(r); + r = NULL; + } + if (ok) + *ret_len = len; + return r; +} + +/* + * TODO: table should be optimised for the wNAF-based implementation, + * sometimes smaller windows will give better performance (thus the + * boundaries should be increased) + */ +#define EC_window_bits_for_scalar_size(b) \ + ((size_t) \ + ((b) >= 2000 ? 6 : \ + (b) >= 800 ? 5 : \ + (b) >= 300 ? 4 : \ + (b) >= 70 ? 3 : \ + (b) >= 20 ? 2 : \ + 1)) + +/*- + * Compute + * \sum scalars[i]*points[i], + * also including + * scalar*generator + * in the addition if scalar != NULL + */ +int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar, + size_t num, const EC_POINT *points[], const BIGNUM *scalars[], + BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + const EC_POINT *generator = NULL; + EC_POINT *tmp = NULL; + size_t totalnum; + size_t blocksize = 0, numblocks = 0; /* for wNAF splitting */ + size_t pre_points_per_block = 0; + size_t i, j; + int k; + int r_is_inverted = 0; + int r_is_at_infinity = 1; + size_t *wsize = NULL; /* individual window sizes */ + signed char **wNAF = NULL; /* individual wNAFs */ + size_t *wNAF_len = NULL; + size_t max_len = 0; + size_t num_val; + EC_POINT **val = NULL; /* precomputation */ + EC_POINT **v; + EC_POINT ***val_sub = NULL; /* pointers to sub-arrays of 'val' or + * 'pre_comp->points' */ + const EC_PRE_COMP *pre_comp = NULL; + int num_scalar = 0; /* flag: will be set to 1 if 'scalar' must be + * treated like other scalars, i.e. + * precomputation is not available */ + int ret = 0; + + if (group->meth != r->meth) { + ECerr(EC_F_EC_WNAF_MUL, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + + if ((scalar == NULL) && (num == 0)) { + return EC_POINT_set_to_infinity(group, r); + } + + for (i = 0; i < num; i++) { + if (group->meth != points[i]->meth) { + ECerr(EC_F_EC_WNAF_MUL, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + goto err; + } + + if (scalar != NULL) { + generator = EC_GROUP_get0_generator(group); + if (generator == NULL) { + ECerr(EC_F_EC_WNAF_MUL, EC_R_UNDEFINED_GENERATOR); + goto err; + } + + /* look if we can use precomputed multiples of generator */ + + pre_comp = + EC_EX_DATA_get_data(group->extra_data, ec_pre_comp_dup, + ec_pre_comp_free, ec_pre_comp_clear_free); + + if (pre_comp && pre_comp->numblocks + && (EC_POINT_cmp(group, generator, pre_comp->points[0], ctx) == + 0)) { + blocksize = pre_comp->blocksize; + + /* + * determine maximum number of blocks that wNAF splitting may + * yield (NB: maximum wNAF length is bit length plus one) + */ + numblocks = (BN_num_bits(scalar) / blocksize) + 1; + + /* + * we cannot use more blocks than we have precomputation for + */ + if (numblocks > pre_comp->numblocks) + numblocks = pre_comp->numblocks; + + pre_points_per_block = (size_t)1 << (pre_comp->w - 1); + + /* check that pre_comp looks sane */ + if (pre_comp->num != (pre_comp->numblocks * pre_points_per_block)) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + goto err; + } + } else { + /* can't use precomputation */ + pre_comp = NULL; + numblocks = 1; + num_scalar = 1; /* treat 'scalar' like 'num'-th element of + * 'scalars' */ + } + } + + totalnum = num + numblocks; + + wsize = OPENSSL_malloc(totalnum * sizeof wsize[0]); + wNAF_len = OPENSSL_malloc(totalnum * sizeof wNAF_len[0]); + wNAF = OPENSSL_malloc((totalnum + 1) * sizeof wNAF[0]); /* includes space + * for pivot */ + val_sub = OPENSSL_malloc(totalnum * sizeof val_sub[0]); + + /* Ensure wNAF is initialised in case we end up going to err */ + if (wNAF) + wNAF[0] = NULL; /* preliminary pivot */ + + if (!wsize || !wNAF_len || !wNAF || !val_sub) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* + * num_val will be the total number of temporarily precomputed points + */ + num_val = 0; + + for (i = 0; i < num + num_scalar; i++) { + size_t bits; + + bits = i < num ? BN_num_bits(scalars[i]) : BN_num_bits(scalar); + wsize[i] = EC_window_bits_for_scalar_size(bits); + num_val += (size_t)1 << (wsize[i] - 1); + wNAF[i + 1] = NULL; /* make sure we always have a pivot */ + wNAF[i] = + compute_wNAF((i < num ? scalars[i] : scalar), wsize[i], + &wNAF_len[i]); + if (wNAF[i] == NULL) + goto err; + if (wNAF_len[i] > max_len) + max_len = wNAF_len[i]; + } + + if (numblocks) { + /* we go here iff scalar != NULL */ + + if (pre_comp == NULL) { + if (num_scalar != 1) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + goto err; + } + /* we have already generated a wNAF for 'scalar' */ + } else { + signed char *tmp_wNAF = NULL; + size_t tmp_len = 0; + + if (num_scalar != 0) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + goto err; + } + + /* + * use the window size for which we have precomputation + */ + wsize[num] = pre_comp->w; + tmp_wNAF = compute_wNAF(scalar, wsize[num], &tmp_len); + if (!tmp_wNAF) + goto err; + + if (tmp_len <= max_len) { + /* + * One of the other wNAFs is at least as long as the wNAF + * belonging to the generator, so wNAF splitting will not buy + * us anything. + */ + + numblocks = 1; + totalnum = num + 1; /* don't use wNAF splitting */ + wNAF[num] = tmp_wNAF; + wNAF[num + 1] = NULL; + wNAF_len[num] = tmp_len; + if (tmp_len > max_len) + max_len = tmp_len; + /* + * pre_comp->points starts with the points that we need here: + */ + val_sub[num] = pre_comp->points; + } else { + /* + * don't include tmp_wNAF directly into wNAF array - use wNAF + * splitting and include the blocks + */ + + signed char *pp; + EC_POINT **tmp_points; + + if (tmp_len < numblocks * blocksize) { + /* + * possibly we can do with fewer blocks than estimated + */ + numblocks = (tmp_len + blocksize - 1) / blocksize; + if (numblocks > pre_comp->numblocks) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + goto err; + } + totalnum = num + numblocks; + } + + /* split wNAF in 'numblocks' parts */ + pp = tmp_wNAF; + tmp_points = pre_comp->points; + + for (i = num; i < totalnum; i++) { + if (i < totalnum - 1) { + wNAF_len[i] = blocksize; + if (tmp_len < blocksize) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + goto err; + } + tmp_len -= blocksize; + } else + /* + * last block gets whatever is left (this could be + * more or less than 'blocksize'!) + */ + wNAF_len[i] = tmp_len; + + wNAF[i + 1] = NULL; + wNAF[i] = OPENSSL_malloc(wNAF_len[i]); + if (wNAF[i] == NULL) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE); + OPENSSL_free(tmp_wNAF); + goto err; + } + memcpy(wNAF[i], pp, wNAF_len[i]); + if (wNAF_len[i] > max_len) + max_len = wNAF_len[i]; + + if (*tmp_points == NULL) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + OPENSSL_free(tmp_wNAF); + goto err; + } + val_sub[i] = tmp_points; + tmp_points += pre_points_per_block; + pp += blocksize; + } + OPENSSL_free(tmp_wNAF); + } + } + } + + /* + * All points we precompute now go into a single array 'val'. + * 'val_sub[i]' is a pointer to the subarray for the i-th point, or to a + * subarray of 'pre_comp->points' if we already have precomputation. + */ + val = OPENSSL_malloc((num_val + 1) * sizeof val[0]); + if (val == NULL) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE); + goto err; + } + val[num_val] = NULL; /* pivot element */ + + /* allocate points for precomputation */ + v = val; + for (i = 0; i < num + num_scalar; i++) { + val_sub[i] = v; + for (j = 0; j < ((size_t)1 << (wsize[i] - 1)); j++) { + *v = EC_POINT_new(group); + if (*v == NULL) + goto err; + v++; + } + } + if (!(v == val + num_val)) { + ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR); + goto err; + } + + if (!(tmp = EC_POINT_new(group))) + goto err; + + /*- + * prepare precomputed values: + * val_sub[i][0] := points[i] + * val_sub[i][1] := 3 * points[i] + * val_sub[i][2] := 5 * points[i] + * ... + */ + for (i = 0; i < num + num_scalar; i++) { + if (i < num) { + if (!EC_POINT_copy(val_sub[i][0], points[i])) + goto err; + } else { + if (!EC_POINT_copy(val_sub[i][0], generator)) + goto err; + } + + if (wsize[i] > 1) { + if (!EC_POINT_dbl(group, tmp, val_sub[i][0], ctx)) + goto err; + for (j = 1; j < ((size_t)1 << (wsize[i] - 1)); j++) { + if (!EC_POINT_add + (group, val_sub[i][j], val_sub[i][j - 1], tmp, ctx)) + goto err; + } + } + } + +#if 1 /* optional; EC_window_bits_for_scalar_size + * assumes we do this step */ + if (!EC_POINTs_make_affine(group, num_val, val, ctx)) + goto err; +#endif + + r_is_at_infinity = 1; + + for (k = max_len - 1; k >= 0; k--) { + if (!r_is_at_infinity) { + if (!EC_POINT_dbl(group, r, r, ctx)) + goto err; + } + + for (i = 0; i < totalnum; i++) { + if (wNAF_len[i] > (size_t)k) { + int digit = wNAF[i][k]; + int is_neg; + + if (digit) { + is_neg = digit < 0; + + if (is_neg) + digit = -digit; + + if (is_neg != r_is_inverted) { + if (!r_is_at_infinity) { + if (!EC_POINT_invert(group, r, ctx)) + goto err; + } + r_is_inverted = !r_is_inverted; + } + + /* digit > 0 */ + + if (r_is_at_infinity) { + if (!EC_POINT_copy(r, val_sub[i][digit >> 1])) + goto err; + r_is_at_infinity = 0; + } else { + if (!EC_POINT_add + (group, r, r, val_sub[i][digit >> 1], ctx)) + goto err; + } + } + } + } + } + + if (r_is_at_infinity) { + if (!EC_POINT_set_to_infinity(group, r)) + goto err; + } else { + if (r_is_inverted) + if (!EC_POINT_invert(group, r, ctx)) + goto err; + } + + ret = 1; + + err: + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + if (tmp != NULL) + EC_POINT_free(tmp); + if (wsize != NULL) + OPENSSL_free(wsize); + if (wNAF_len != NULL) + OPENSSL_free(wNAF_len); + if (wNAF != NULL) { + signed char **w; + + for (w = wNAF; *w != NULL; w++) + OPENSSL_free(*w); + + OPENSSL_free(wNAF); + } + if (val != NULL) { + for (v = val; *v != NULL; v++) + EC_POINT_clear_free(*v); + + OPENSSL_free(val); + } + if (val_sub != NULL) { + OPENSSL_free(val_sub); + } + return ret; +} + +/*- + * ec_wNAF_precompute_mult() + * creates an EC_PRE_COMP object with preprecomputed multiples of the generator + * for use with wNAF splitting as implemented in ec_wNAF_mul(). + * + * 'pre_comp->points' is an array of multiples of the generator + * of the following form: + * points[0] = generator; + * points[1] = 3 * generator; + * ... + * points[2^(w-1)-1] = (2^(w-1)-1) * generator; + * points[2^(w-1)] = 2^blocksize * generator; + * points[2^(w-1)+1] = 3 * 2^blocksize * generator; + * ... + * points[2^(w-1)*(numblocks-1)-1] = (2^(w-1)) * 2^(blocksize*(numblocks-2)) * generator + * points[2^(w-1)*(numblocks-1)] = 2^(blocksize*(numblocks-1)) * generator + * ... + * points[2^(w-1)*numblocks-1] = (2^(w-1)) * 2^(blocksize*(numblocks-1)) * generator + * points[2^(w-1)*numblocks] = NULL + */ +int ec_wNAF_precompute_mult(EC_GROUP *group, BN_CTX *ctx) +{ + const EC_POINT *generator; + EC_POINT *tmp_point = NULL, *base = NULL, **var; + BN_CTX *new_ctx = NULL; + BIGNUM *order; + size_t i, bits, w, pre_points_per_block, blocksize, numblocks, num; + EC_POINT **points = NULL; + EC_PRE_COMP *pre_comp; + int ret = 0; + + /* if there is an old EC_PRE_COMP object, throw it away */ + EC_EX_DATA_free_data(&group->extra_data, ec_pre_comp_dup, + ec_pre_comp_free, ec_pre_comp_clear_free); + + if ((pre_comp = ec_pre_comp_new(group)) == NULL) + return 0; + + generator = EC_GROUP_get0_generator(group); + if (generator == NULL) { + ECerr(EC_F_EC_WNAF_PRECOMPUTE_MULT, EC_R_UNDEFINED_GENERATOR); + goto err; + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + goto err; + } + + BN_CTX_start(ctx); + order = BN_CTX_get(ctx); + if (order == NULL) + goto err; + + if (!EC_GROUP_get_order(group, order, ctx)) + goto err; + if (BN_is_zero(order)) { + ECerr(EC_F_EC_WNAF_PRECOMPUTE_MULT, EC_R_UNKNOWN_ORDER); + goto err; + } + + bits = BN_num_bits(order); + /* + * The following parameters mean we precompute (approximately) one point + * per bit. TBD: The combination 8, 4 is perfect for 160 bits; for other + * bit lengths, other parameter combinations might provide better + * efficiency. + */ + blocksize = 8; + w = 4; + if (EC_window_bits_for_scalar_size(bits) > w) { + /* let's not make the window too small ... */ + w = EC_window_bits_for_scalar_size(bits); + } + + numblocks = (bits + blocksize - 1) / blocksize; /* max. number of blocks + * to use for wNAF + * splitting */ + + pre_points_per_block = (size_t)1 << (w - 1); + num = pre_points_per_block * numblocks; /* number of points to compute + * and store */ + + points = OPENSSL_malloc(sizeof(EC_POINT *) * (num + 1)); + if (!points) { + ECerr(EC_F_EC_WNAF_PRECOMPUTE_MULT, ERR_R_MALLOC_FAILURE); + goto err; + } + + var = points; + var[num] = NULL; /* pivot */ + for (i = 0; i < num; i++) { + if ((var[i] = EC_POINT_new(group)) == NULL) { + ECerr(EC_F_EC_WNAF_PRECOMPUTE_MULT, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (!(tmp_point = EC_POINT_new(group)) || !(base = EC_POINT_new(group))) { + ECerr(EC_F_EC_WNAF_PRECOMPUTE_MULT, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!EC_POINT_copy(base, generator)) + goto err; + + /* do the precomputation */ + for (i = 0; i < numblocks; i++) { + size_t j; + + if (!EC_POINT_dbl(group, tmp_point, base, ctx)) + goto err; + + if (!EC_POINT_copy(*var++, base)) + goto err; + + for (j = 1; j < pre_points_per_block; j++, var++) { + /* + * calculate odd multiples of the current base point + */ + if (!EC_POINT_add(group, *var, tmp_point, *(var - 1), ctx)) + goto err; + } + + if (i < numblocks - 1) { + /* + * get the next base (multiply current one by 2^blocksize) + */ + size_t k; + + if (blocksize <= 2) { + ECerr(EC_F_EC_WNAF_PRECOMPUTE_MULT, ERR_R_INTERNAL_ERROR); + goto err; + } + + if (!EC_POINT_dbl(group, base, tmp_point, ctx)) + goto err; + for (k = 2; k < blocksize; k++) { + if (!EC_POINT_dbl(group, base, base, ctx)) + goto err; + } + } + } + + if (!EC_POINTs_make_affine(group, num, points, ctx)) + goto err; + + pre_comp->group = group; + pre_comp->blocksize = blocksize; + pre_comp->numblocks = numblocks; + pre_comp->w = w; + pre_comp->points = points; + points = NULL; + pre_comp->num = num; + + if (!EC_EX_DATA_set_data(&group->extra_data, pre_comp, + ec_pre_comp_dup, ec_pre_comp_free, + ec_pre_comp_clear_free)) + goto err; + pre_comp = NULL; + + ret = 1; + err: + if (ctx != NULL) + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + if (pre_comp) + ec_pre_comp_free(pre_comp); + if (points) { + EC_POINT **p; + + for (p = points; *p != NULL; p++) + EC_POINT_free(*p); + OPENSSL_free(points); + } + if (tmp_point) + EC_POINT_free(tmp_point); + if (base) + EC_POINT_free(base); + return ret; +} + +int ec_wNAF_have_precompute_mult(const EC_GROUP *group) +{ + if (EC_EX_DATA_get_data + (group->extra_data, ec_pre_comp_dup, ec_pre_comp_free, + ec_pre_comp_clear_free) != NULL) + return 1; + else + return 0; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_oct.c b/Cryptlib/OpenSSL/crypto/ec/ec_oct.c new file mode 100644 index 0000000..4ef58f6 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_oct.c @@ -0,0 +1,163 @@ +/* crypto/ec/ec_lib.c */ +/* + * Originally written by Bodo Moeller for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Binary polynomial ECC support in OpenSSL originally developed by + * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. + */ + +#include + +#include +#include + +#include "ec_lcl.h" + +int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, + EC_POINT *point, const BIGNUM *x, + int y_bit, BN_CTX *ctx) +{ + if (group->meth->point_set_compressed_coordinates == 0 + && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) { + ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, + ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, + EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) { + if (group->meth->field_type == NID_X9_62_prime_field) + return ec_GFp_simple_set_compressed_coordinates(group, point, x, + y_bit, ctx); + else +#ifdef OPENSSL_NO_EC2M + { + ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, + EC_R_GF2M_NOT_SUPPORTED); + return 0; + } +#else + return ec_GF2m_simple_set_compressed_coordinates(group, point, x, + y_bit, ctx); +#endif + } + return group->meth->point_set_compressed_coordinates(group, point, x, + y_bit, ctx); +} + +size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, + point_conversion_form_t form, unsigned char *buf, + size_t len, BN_CTX *ctx) +{ + if (group->meth->point2oct == 0 + && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) { + ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) { + if (group->meth->field_type == NID_X9_62_prime_field) + return ec_GFp_simple_point2oct(group, point, form, buf, len, ctx); + else +#ifdef OPENSSL_NO_EC2M + { + ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_GF2M_NOT_SUPPORTED); + return 0; + } +#else + return ec_GF2m_simple_point2oct(group, point, + form, buf, len, ctx); +#endif + } + + return group->meth->point2oct(group, point, form, buf, len, ctx); +} + +int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point, + const unsigned char *buf, size_t len, BN_CTX *ctx) +{ + if (group->meth->oct2point == 0 + && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) { + ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return 0; + } + if (group->meth != point->meth) { + ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS); + return 0; + } + if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) { + if (group->meth->field_type == NID_X9_62_prime_field) + return ec_GFp_simple_oct2point(group, point, buf, len, ctx); + else +#ifdef OPENSSL_NO_EC2M + { + ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_GF2M_NOT_SUPPORTED); + return 0; + } +#else + return ec_GF2m_simple_oct2point(group, point, buf, len, ctx); +#endif + } + return group->meth->oct2point(group, point, buf, len, ctx); +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_pmeth.c b/Cryptlib/OpenSSL/crypto/ec/ec_pmeth.c new file mode 100644 index 0000000..9844857 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_pmeth.c @@ -0,0 +1,410 @@ +/* + * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project + * 2006. + */ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "cryptlib.h" +#include +#include +#include +#include "ec_lcl.h" +#include +#include +#include "evp_locl.h" +#include + +/* EC pkey context structure */ + +typedef struct { + /* Key and paramgen group */ + EC_GROUP *gen_group; + /* message digest */ + const EVP_MD *md; + /* Duplicate key if custom cofactor needed */ + EC_KEY *co_key; + /* Cofactor mode */ + signed char cofactor_mode; + /* KDF (if any) to use for ECDH */ + char kdf_type; + /* Message digest to use for key derivation */ + const EVP_MD *kdf_md; + /* User key material */ + unsigned char *kdf_ukm; + size_t kdf_ukmlen; + /* KDF output length */ + size_t kdf_outlen; +} EC_PKEY_CTX; + +static int pkey_ec_init(EVP_PKEY_CTX *ctx) +{ + EC_PKEY_CTX *dctx; + dctx = OPENSSL_malloc(sizeof(EC_PKEY_CTX)); + if (!dctx) + return 0; + dctx->gen_group = NULL; + dctx->md = NULL; + + dctx->cofactor_mode = -1; + dctx->co_key = NULL; + dctx->kdf_type = EVP_PKEY_ECDH_KDF_NONE; + dctx->kdf_md = NULL; + dctx->kdf_outlen = 0; + dctx->kdf_ukm = NULL; + dctx->kdf_ukmlen = 0; + + ctx->data = dctx; + + return 1; +} + +static int pkey_ec_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) +{ + EC_PKEY_CTX *dctx, *sctx; + if (!pkey_ec_init(dst)) + return 0; + sctx = src->data; + dctx = dst->data; + if (sctx->gen_group) { + dctx->gen_group = EC_GROUP_dup(sctx->gen_group); + if (!dctx->gen_group) + return 0; + } + dctx->md = sctx->md; + + if (sctx->co_key) { + dctx->co_key = EC_KEY_dup(sctx->co_key); + if (!dctx->co_key) + return 0; + } + dctx->kdf_type = sctx->kdf_type; + dctx->kdf_md = sctx->kdf_md; + dctx->kdf_outlen = sctx->kdf_outlen; + if (sctx->kdf_ukm) { + dctx->kdf_ukm = BUF_memdup(sctx->kdf_ukm, sctx->kdf_ukmlen); + if (!dctx->kdf_ukm) + return 0; + } else + dctx->kdf_ukm = NULL; + dctx->kdf_ukmlen = sctx->kdf_ukmlen; + return 1; +} + +static void pkey_ec_cleanup(EVP_PKEY_CTX *ctx) +{ + EC_PKEY_CTX *dctx = ctx->data; + if (dctx) { + if (dctx->gen_group) + EC_GROUP_free(dctx->gen_group); + if (dctx->co_key) + EC_KEY_free(dctx->co_key); + if (dctx->kdf_ukm) + OPENSSL_free(dctx->kdf_ukm); + OPENSSL_free(dctx); + } +} + +static int pkey_ec_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) +{ + EC_PKEY_CTX *dctx = ctx->data; + EC_GROUP *group; + switch (type) { + case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID: + group = EC_GROUP_new_by_curve_name(p1); + if (group == NULL) { + ECerr(EC_F_PKEY_EC_CTRL, EC_R_INVALID_CURVE); + return 0; + } + if (dctx->gen_group) + EC_GROUP_free(dctx->gen_group); + dctx->gen_group = group; + return 1; + + case EVP_PKEY_CTRL_EC_PARAM_ENC: + if (!dctx->gen_group) { + ECerr(EC_F_PKEY_EC_CTRL, EC_R_NO_PARAMETERS_SET); + return 0; + } + EC_GROUP_set_asn1_flag(dctx->gen_group, p1); + return 1; + +#ifndef OPENSSL_NO_ECDH + case EVP_PKEY_CTRL_EC_ECDH_COFACTOR: + if (p1 == -2) { + if (dctx->cofactor_mode != -1) + return dctx->cofactor_mode; + else { + EC_KEY *ec_key = ctx->pkey->pkey.ec; + return EC_KEY_get_flags(ec_key) & EC_FLAG_COFACTOR_ECDH ? 1 : + 0; + } + } else if (p1 < -1 || p1 > 1) + return -2; + dctx->cofactor_mode = p1; + if (p1 != -1) { + EC_KEY *ec_key = ctx->pkey->pkey.ec; + if (!ec_key->group) + return -2; + /* If cofactor is 1 cofactor mode does nothing */ + if (BN_is_one(&ec_key->group->cofactor)) + return 1; + if (!dctx->co_key) { + dctx->co_key = EC_KEY_dup(ec_key); + if (!dctx->co_key) + return 0; + } + if (p1) + EC_KEY_set_flags(dctx->co_key, EC_FLAG_COFACTOR_ECDH); + else + EC_KEY_clear_flags(dctx->co_key, EC_FLAG_COFACTOR_ECDH); + } else if (dctx->co_key) { + EC_KEY_free(dctx->co_key); + dctx->co_key = NULL; + } + return 1; +#endif + + case EVP_PKEY_CTRL_EC_KDF_TYPE: + if (p1 == -2) + return dctx->kdf_type; + if (p1 != EVP_PKEY_ECDH_KDF_NONE && p1 != EVP_PKEY_ECDH_KDF_X9_62) + return -2; + dctx->kdf_type = p1; + return 1; + + case EVP_PKEY_CTRL_EC_KDF_MD: + dctx->kdf_md = p2; + return 1; + + case EVP_PKEY_CTRL_GET_EC_KDF_MD: + *(const EVP_MD **)p2 = dctx->kdf_md; + return 1; + + case EVP_PKEY_CTRL_EC_KDF_OUTLEN: + if (p1 <= 0) + return -2; + dctx->kdf_outlen = (size_t)p1; + return 1; + + case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN: + *(int *)p2 = dctx->kdf_outlen; + return 1; + + case EVP_PKEY_CTRL_EC_KDF_UKM: + if (dctx->kdf_ukm) + OPENSSL_free(dctx->kdf_ukm); + dctx->kdf_ukm = p2; + if (p2) + dctx->kdf_ukmlen = p1; + else + dctx->kdf_ukmlen = 0; + return 1; + + case EVP_PKEY_CTRL_GET_EC_KDF_UKM: + *(unsigned char **)p2 = dctx->kdf_ukm; + return dctx->kdf_ukmlen; + + case EVP_PKEY_CTRL_MD: + if (EVP_MD_type((const EVP_MD *)p2) != NID_sha1 && + EVP_MD_type((const EVP_MD *)p2) != NID_ecdsa_with_SHA1 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha224 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha256 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha384 && + EVP_MD_type((const EVP_MD *)p2) != NID_sha512 && + EVP_MD_type((const EVP_MD *)p2) != NID_sm3) { + ECerr(EC_F_PKEY_EC_CTRL, EC_R_INVALID_DIGEST_TYPE); + return 0; + } + dctx->md = p2; + return 1; + + case EVP_PKEY_CTRL_GET_MD: + *(const EVP_MD **)p2 = dctx->md; + return 1; + + case EVP_PKEY_CTRL_PEER_KEY: + /* Default behaviour is OK */ + case EVP_PKEY_CTRL_DIGESTINIT: + case EVP_PKEY_CTRL_PKCS7_SIGN: + case EVP_PKEY_CTRL_CMS_SIGN: + return 1; + + default: + return -2; + + } +} + +static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx, + const char *type, const char *value) +{ + if (!strcmp(type, "ec_paramgen_curve")) { + int nid; + nid = EC_curve_nist2nid(value); + if (nid == NID_undef) + nid = OBJ_sn2nid(value); + if (nid == NID_undef) + nid = OBJ_ln2nid(value); + if (nid == NID_undef) { + ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE); + return 0; + } + return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); + } else if (!strcmp(type, "ec_param_enc")) { + int param_enc; + if (!strcmp(value, "explicit")) + param_enc = 0; + else if (!strcmp(value, "named_curve")) + param_enc = OPENSSL_EC_NAMED_CURVE; + else + return -2; + return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc); + } else if (!strcmp(type, "ecdh_kdf_md")) { + const EVP_MD *md; + if (!(md = EVP_get_digestbyname(value))) { + ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_DIGEST); + return 0; + } + return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md); + } else if (!strcmp(type, "ecdh_cofactor_mode")) { + int co_mode; + co_mode = atoi(value); + return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, co_mode); + } + + return -2; +} + +static int pkey_ec_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) +{ + EC_KEY *ec = NULL; + EC_PKEY_CTX *dctx = ctx->data; + int ret = 0; + if (dctx->gen_group == NULL) { + ECerr(EC_F_PKEY_EC_PARAMGEN, EC_R_NO_PARAMETERS_SET); + return 0; + } + ec = EC_KEY_new(); + if (!ec) + return 0; + ret = EC_KEY_set_group(ec, dctx->gen_group); + if (ret) + EVP_PKEY_assign_EC_KEY(pkey, ec); + else + EC_KEY_free(ec); + return ret; +} + +static int pkey_ec_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) +{ + EC_KEY *ec = NULL; + EC_PKEY_CTX *dctx = ctx->data; + if (ctx->pkey == NULL && dctx->gen_group == NULL) { + ECerr(EC_F_PKEY_EC_KEYGEN, EC_R_NO_PARAMETERS_SET); + return 0; + } + ec = EC_KEY_new(); + if (!ec) + return 0; + EVP_PKEY_assign_EC_KEY(pkey, ec); + if (ctx->pkey) { + /* Note: if error return, pkey is freed by parent routine */ + if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey)) + return 0; + } else { + if (!EC_KEY_set_group(ec, dctx->gen_group)) + return 0; + } + return EC_KEY_generate_key(pkey->pkey.ec); +} + +const EVP_PKEY_METHOD ec_pkey_meth = { + EVP_PKEY_EC, + 0, + pkey_ec_init, + pkey_ec_copy, + pkey_ec_cleanup, + + 0, + pkey_ec_paramgen, + + 0, + pkey_ec_keygen, + + 0, + 0, // pkey_ec_sign, + + 0, + 0, // pkey_ec_verify, + + 0, 0, + + 0, 0, 0, 0, + + 0, 0, + + 0, 0, + + 0, +#ifndef OPENSSL_NO_ECDH + pkey_ec_kdf_derive, +#else + 0, +#endif + + pkey_ec_ctrl, + pkey_ec_ctrl_str +}; diff --git a/Cryptlib/OpenSSL/crypto/ec/ec_print.c b/Cryptlib/OpenSSL/crypto/ec/ec_print.c new file mode 100644 index 0000000..96b294d --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ec_print.c @@ -0,0 +1,179 @@ +/* crypto/ec/ec_print.c */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "ec_lcl.h" + +BIGNUM *EC_POINT_point2bn(const EC_GROUP *group, + const EC_POINT *point, + point_conversion_form_t form, + BIGNUM *ret, BN_CTX *ctx) +{ + size_t buf_len = 0; + unsigned char *buf; + + buf_len = EC_POINT_point2oct(group, point, form, NULL, 0, ctx); + if (buf_len == 0) + return NULL; + + if ((buf = OPENSSL_malloc(buf_len)) == NULL) + return NULL; + + if (!EC_POINT_point2oct(group, point, form, buf, buf_len, ctx)) { + OPENSSL_free(buf); + return NULL; + } + + ret = BN_bin2bn(buf, buf_len, ret); + + OPENSSL_free(buf); + + return ret; +} + +EC_POINT *EC_POINT_bn2point(const EC_GROUP *group, + const BIGNUM *bn, EC_POINT *point, BN_CTX *ctx) +{ + size_t buf_len = 0; + unsigned char *buf; + EC_POINT *ret; + + if ((buf_len = BN_num_bytes(bn)) == 0) + return NULL; + buf = OPENSSL_malloc(buf_len); + if (buf == NULL) + return NULL; + + if (!BN_bn2bin(bn, buf)) { + OPENSSL_free(buf); + return NULL; + } + + if (point == NULL) { + if ((ret = EC_POINT_new(group)) == NULL) { + OPENSSL_free(buf); + return NULL; + } + } else + ret = point; + + if (!EC_POINT_oct2point(group, ret, buf, buf_len, ctx)) { + if (point == NULL) + EC_POINT_clear_free(ret); + OPENSSL_free(buf); + return NULL; + } + + OPENSSL_free(buf); + return ret; +} + +static const char *HEX_DIGITS = "0123456789ABCDEF"; + +/* the return value must be freed (using OPENSSL_free()) */ +char *EC_POINT_point2hex(const EC_GROUP *group, + const EC_POINT *point, + point_conversion_form_t form, BN_CTX *ctx) +{ + char *ret, *p; + size_t buf_len = 0, i; + unsigned char *buf, *pbuf; + + buf_len = EC_POINT_point2oct(group, point, form, NULL, 0, ctx); + if (buf_len == 0) + return NULL; + + if ((buf = OPENSSL_malloc(buf_len)) == NULL) + return NULL; + + if (!EC_POINT_point2oct(group, point, form, buf, buf_len, ctx)) { + OPENSSL_free(buf); + return NULL; + } + + ret = (char *)OPENSSL_malloc(buf_len * 2 + 2); + if (ret == NULL) { + OPENSSL_free(buf); + return NULL; + } + p = ret; + pbuf = buf; + for (i = buf_len; i > 0; i--) { + int v = (int)*(pbuf++); + *(p++) = HEX_DIGITS[v >> 4]; + *(p++) = HEX_DIGITS[v & 0x0F]; + } + *p = '\0'; + + OPENSSL_free(buf); + + return ret; +} + +EC_POINT *EC_POINT_hex2point(const EC_GROUP *group, + const char *buf, EC_POINT *point, BN_CTX *ctx) +{ + EC_POINT *ret = NULL; + BIGNUM *tmp_bn = NULL; + + if (!BN_hex2bn(&tmp_bn, buf)) + return NULL; + + ret = EC_POINT_bn2point(group, tmp_bn, point, ctx); + + BN_clear_free(tmp_bn); + + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/eck_prn.c b/Cryptlib/OpenSSL/crypto/ec/eck_prn.c new file mode 100644 index 0000000..a3bd1db --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/eck_prn.c @@ -0,0 +1,330 @@ +/* crypto/ec/eck_prn.c */ +/* + * Written by Nils Larsch for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions originally developed by SUN MICROSYSTEMS, INC., and + * contributed to the OpenSSL project. + */ + +#include +#include "cryptlib.h" +#include +#include +#include + +int EC_KEY_print(BIO *bp, const EC_KEY *x, int off) +{ + EVP_PKEY *pk; + int ret; + pk = EVP_PKEY_new(); + if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x)) + return 0; + ret = EVP_PKEY_print_private(bp, pk, off, NULL); + EVP_PKEY_free(pk); + return ret; +} + +int ECParameters_print(BIO *bp, const EC_KEY *x) +{ + EVP_PKEY *pk; + int ret; + pk = EVP_PKEY_new(); + if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x)) + return 0; + ret = EVP_PKEY_print_params(bp, pk, 4, NULL); + EVP_PKEY_free(pk); + return ret; +} + +static int print_bin(BIO *fp, const char *str, const unsigned char *num, + size_t len, int off); + +int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off) +{ + unsigned char *buffer = NULL; + size_t buf_len = 0, i; + int ret = 0, reason = ERR_R_BIO_LIB; + BN_CTX *ctx = NULL; + const EC_POINT *point = NULL; + BIGNUM *p = NULL, *a = NULL, *b = NULL, *gen = NULL, + *order = NULL, *cofactor = NULL; + const unsigned char *seed; + size_t seed_len = 0; + + static const char *gen_compressed = "Generator (compressed):"; + static const char *gen_uncompressed = "Generator (uncompressed):"; + static const char *gen_hybrid = "Generator (hybrid):"; + + if (!x) { + reason = ERR_R_PASSED_NULL_PARAMETER; + goto err; + } + + ctx = BN_CTX_new(); + if (ctx == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + + if (EC_GROUP_get_asn1_flag(x)) { + /* the curve parameter are given by an asn1 OID */ + int nid; + const char *nname; + + if (!BIO_indent(bp, off, 128)) + goto err; + + nid = EC_GROUP_get_curve_name(x); + if (nid == 0) + goto err; + + if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0) + goto err; + if (BIO_printf(bp, "\n") <= 0) + goto err; + nname = EC_curve_nid2nist(nid); + if (nname) { + if (!BIO_indent(bp, off, 128)) + goto err; + if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0) + goto err; + } + } else { + /* explicit parameters */ + int is_char_two = 0; + point_conversion_form_t form; + int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x)); + + if (tmp_nid == NID_X9_62_characteristic_two_field) + is_char_two = 1; + + if ((p = BN_new()) == NULL || (a = BN_new()) == NULL || + (b = BN_new()) == NULL || (order = BN_new()) == NULL || + (cofactor = BN_new()) == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } +#ifndef OPENSSL_NO_EC2M + if (is_char_two) { + if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) { + reason = ERR_R_EC_LIB; + goto err; + } + } else /* prime field */ +#endif + { + if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) { + reason = ERR_R_EC_LIB; + goto err; + } + } + + if ((point = EC_GROUP_get0_generator(x)) == NULL) { + reason = ERR_R_EC_LIB; + goto err; + } + if (!EC_GROUP_get_order(x, order, NULL) || + !EC_GROUP_get_cofactor(x, cofactor, NULL)) { + reason = ERR_R_EC_LIB; + goto err; + } + + form = EC_GROUP_get_point_conversion_form(x); + + if ((gen = EC_POINT_point2bn(x, point, form, NULL, ctx)) == NULL) { + reason = ERR_R_EC_LIB; + goto err; + } + + buf_len = (size_t)BN_num_bytes(p); + if (buf_len < (i = (size_t)BN_num_bytes(a))) + buf_len = i; + if (buf_len < (i = (size_t)BN_num_bytes(b))) + buf_len = i; + if (buf_len < (i = (size_t)BN_num_bytes(gen))) + buf_len = i; + if (buf_len < (i = (size_t)BN_num_bytes(order))) + buf_len = i; + if (buf_len < (i = (size_t)BN_num_bytes(cofactor))) + buf_len = i; + + if ((seed = EC_GROUP_get0_seed(x)) != NULL) + seed_len = EC_GROUP_get_seed_len(x); + + buf_len += 10; + if ((buffer = OPENSSL_malloc(buf_len)) == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + + if (!BIO_indent(bp, off, 128)) + goto err; + + /* print the 'short name' of the field type */ + if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid)) + <= 0) + goto err; + + if (is_char_two) { + /* print the 'short name' of the base type OID */ + int basis_type = EC_GROUP_get_basis_type(x); + if (basis_type == 0) + goto err; + + if (!BIO_indent(bp, off, 128)) + goto err; + + if (BIO_printf(bp, "Basis Type: %s\n", + OBJ_nid2sn(basis_type)) <= 0) + goto err; + + /* print the polynomial */ + if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, buffer, + off)) + goto err; + } else { + if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, buffer, off)) + goto err; + } + if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, buffer, off)) + goto err; + if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, buffer, off)) + goto err; + if (form == POINT_CONVERSION_COMPRESSED) { + if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen, + buffer, off)) + goto err; + } else if (form == POINT_CONVERSION_UNCOMPRESSED) { + if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen, + buffer, off)) + goto err; + } else { /* form == POINT_CONVERSION_HYBRID */ + + if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen, + buffer, off)) + goto err; + } + if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order, + buffer, off)) + goto err; + if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor, + buffer, off)) + goto err; + if (seed && !print_bin(bp, "Seed:", seed, seed_len, off)) + goto err; + } + ret = 1; + err: + if (!ret) + ECerr(EC_F_ECPKPARAMETERS_PRINT, reason); + if (p) + BN_free(p); + if (a) + BN_free(a); + if (b) + BN_free(b); + if (gen) + BN_free(gen); + if (order) + BN_free(order); + if (cofactor) + BN_free(cofactor); + if (ctx) + BN_CTX_free(ctx); + if (buffer != NULL) + OPENSSL_free(buffer); + return (ret); +} + +static int print_bin(BIO *fp, const char *name, const unsigned char *buf, + size_t len, int off) +{ + size_t i; + char str[128]; + + if (buf == NULL) + return 1; + if (off > 0) { + if (off > 128) + off = 128; + memset(str, ' ', off); + if (BIO_write(fp, str, off) <= 0) + return 0; + } else { + off = 0; + } + + if (BIO_printf(fp, "%s", name) <= 0) + return 0; + + for (i = 0; i < len; i++) { + if ((i % 15) == 0) { + str[0] = '\n'; + memset(&(str[1]), ' ', off + 4); + if (BIO_write(fp, str, off + 1 + 4) <= 0) + return 0; + } + if (BIO_printf(fp, "%02x%s", buf[i], ((i + 1) == len) ? "" : ":") <= + 0) + return 0; + } + if (BIO_write(fp, "\n", 1) <= 0) + return 0; + + return 1; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ecp_mont.c b/Cryptlib/OpenSSL/crypto/ec/ecp_mont.c new file mode 100644 index 0000000..b2de7fa --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ecp_mont.c @@ -0,0 +1,308 @@ +/* crypto/ec/ecp_mont.c */ +/* + * Originally written by Bodo Moeller for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions of this software developed by SUN MICROSYSTEMS, INC., + * and contributed to the OpenSSL project. + */ + +#include + +#ifdef OPENSSL_FIPS +# include +#endif + +#include "ec_lcl.h" + +const EC_METHOD *EC_GFp_mont_method(void) +{ + static const EC_METHOD ret = { + EC_FLAGS_DEFAULT_OCT, + NID_X9_62_prime_field, + ec_GFp_mont_group_init, + ec_GFp_mont_group_finish, + ec_GFp_mont_group_clear_finish, + ec_GFp_mont_group_copy, + ec_GFp_mont_group_set_curve, + ec_GFp_simple_group_get_curve, + ec_GFp_simple_group_get_degree, + ec_GFp_simple_group_check_discriminant, + ec_GFp_simple_point_init, + ec_GFp_simple_point_finish, + ec_GFp_simple_point_clear_finish, + ec_GFp_simple_point_copy, + ec_GFp_simple_point_set_to_infinity, + ec_GFp_simple_set_Jprojective_coordinates_GFp, + ec_GFp_simple_get_Jprojective_coordinates_GFp, + ec_GFp_simple_point_set_affine_coordinates, + ec_GFp_simple_point_get_affine_coordinates, + 0, 0, 0, + ec_GFp_simple_add, + ec_GFp_simple_dbl, + ec_GFp_simple_invert, + ec_GFp_simple_is_at_infinity, + ec_GFp_simple_is_on_curve, + ec_GFp_simple_cmp, + ec_GFp_simple_make_affine, + ec_GFp_simple_points_make_affine, + 0 /* mul */ , + 0 /* precompute_mult */ , + 0 /* have_precompute_mult */ , + ec_GFp_mont_field_mul, + ec_GFp_mont_field_sqr, + 0 /* field_div */ , + ec_GFp_mont_field_encode, + ec_GFp_mont_field_decode, + ec_GFp_mont_field_set_to_one + }; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return fips_ec_gfp_mont_method(); +#endif + + return &ret; +} + +int ec_GFp_mont_group_init(EC_GROUP *group) +{ + int ok; + + ok = ec_GFp_simple_group_init(group); + group->field_data1 = NULL; + group->field_data2 = NULL; + return ok; +} + +void ec_GFp_mont_group_finish(EC_GROUP *group) +{ + if (group->field_data1 != NULL) { + BN_MONT_CTX_free(group->field_data1); + group->field_data1 = NULL; + } + if (group->field_data2 != NULL) { + BN_free(group->field_data2); + group->field_data2 = NULL; + } + ec_GFp_simple_group_finish(group); +} + +void ec_GFp_mont_group_clear_finish(EC_GROUP *group) +{ + if (group->field_data1 != NULL) { + BN_MONT_CTX_free(group->field_data1); + group->field_data1 = NULL; + } + if (group->field_data2 != NULL) { + BN_clear_free(group->field_data2); + group->field_data2 = NULL; + } + ec_GFp_simple_group_clear_finish(group); +} + +int ec_GFp_mont_group_copy(EC_GROUP *dest, const EC_GROUP *src) +{ + if (dest->field_data1 != NULL) { + BN_MONT_CTX_free(dest->field_data1); + dest->field_data1 = NULL; + } + if (dest->field_data2 != NULL) { + BN_clear_free(dest->field_data2); + dest->field_data2 = NULL; + } + + if (!ec_GFp_simple_group_copy(dest, src)) + return 0; + + if (src->field_data1 != NULL) { + dest->field_data1 = BN_MONT_CTX_new(); + if (dest->field_data1 == NULL) + return 0; + if (!BN_MONT_CTX_copy(dest->field_data1, src->field_data1)) + goto err; + } + if (src->field_data2 != NULL) { + dest->field_data2 = BN_dup(src->field_data2); + if (dest->field_data2 == NULL) + goto err; + } + + return 1; + + err: + if (dest->field_data1 != NULL) { + BN_MONT_CTX_free(dest->field_data1); + dest->field_data1 = NULL; + } + return 0; +} + +int ec_GFp_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p, + const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + BN_MONT_CTX *mont = NULL; + BIGNUM *one = NULL; + int ret = 0; + + if (group->field_data1 != NULL) { + BN_MONT_CTX_free(group->field_data1); + group->field_data1 = NULL; + } + if (group->field_data2 != NULL) { + BN_free(group->field_data2); + group->field_data2 = NULL; + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + mont = BN_MONT_CTX_new(); + if (mont == NULL) + goto err; + if (!BN_MONT_CTX_set(mont, p, ctx)) { + ECerr(EC_F_EC_GFP_MONT_GROUP_SET_CURVE, ERR_R_BN_LIB); + goto err; + } + one = BN_new(); + if (one == NULL) + goto err; + if (!BN_to_montgomery(one, BN_value_one(), mont, ctx)) + goto err; + + group->field_data1 = mont; + mont = NULL; + group->field_data2 = one; + one = NULL; + + ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx); + + if (!ret) { + BN_MONT_CTX_free(group->field_data1); + group->field_data1 = NULL; + BN_free(group->field_data2); + group->field_data2 = NULL; + } + + err: + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + if (mont != NULL) + BN_MONT_CTX_free(mont); + return ret; +} + +int ec_GFp_mont_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx) +{ + if (group->field_data1 == NULL) { + ECerr(EC_F_EC_GFP_MONT_FIELD_MUL, EC_R_NOT_INITIALIZED); + return 0; + } + + return BN_mod_mul_montgomery(r, a, b, group->field_data1, ctx); +} + +int ec_GFp_mont_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, + BN_CTX *ctx) +{ + if (group->field_data1 == NULL) { + ECerr(EC_F_EC_GFP_MONT_FIELD_SQR, EC_R_NOT_INITIALIZED); + return 0; + } + + return BN_mod_mul_montgomery(r, a, a, group->field_data1, ctx); +} + +int ec_GFp_mont_field_encode(const EC_GROUP *group, BIGNUM *r, + const BIGNUM *a, BN_CTX *ctx) +{ + if (group->field_data1 == NULL) { + ECerr(EC_F_EC_GFP_MONT_FIELD_ENCODE, EC_R_NOT_INITIALIZED); + return 0; + } + + return BN_to_montgomery(r, a, (BN_MONT_CTX *)group->field_data1, ctx); +} + +int ec_GFp_mont_field_decode(const EC_GROUP *group, BIGNUM *r, + const BIGNUM *a, BN_CTX *ctx) +{ + if (group->field_data1 == NULL) { + ECerr(EC_F_EC_GFP_MONT_FIELD_DECODE, EC_R_NOT_INITIALIZED); + return 0; + } + + return BN_from_montgomery(r, a, group->field_data1, ctx); +} + +int ec_GFp_mont_field_set_to_one(const EC_GROUP *group, BIGNUM *r, + BN_CTX *ctx) +{ + if (group->field_data2 == NULL) { + ECerr(EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE, EC_R_NOT_INITIALIZED); + return 0; + } + + if (!BN_copy(r, group->field_data2)) + return 0; + return 1; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ecp_nist.c b/Cryptlib/OpenSSL/crypto/ec/ecp_nist.c new file mode 100644 index 0000000..3944e24 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ecp_nist.c @@ -0,0 +1,220 @@ +/* crypto/ec/ecp_nist.c */ +/* + * Written by Nils Larsch for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions of this software developed by SUN MICROSYSTEMS, INC., + * and contributed to the OpenSSL project. + */ + +#include + +#include +#include +#include "ec_lcl.h" + +#ifdef OPENSSL_FIPS +# include +#endif + +const EC_METHOD *EC_GFp_nist_method(void) +{ + static const EC_METHOD ret = { + EC_FLAGS_DEFAULT_OCT, + NID_X9_62_prime_field, + ec_GFp_simple_group_init, + ec_GFp_simple_group_finish, + ec_GFp_simple_group_clear_finish, + ec_GFp_nist_group_copy, + ec_GFp_nist_group_set_curve, + ec_GFp_simple_group_get_curve, + ec_GFp_simple_group_get_degree, + ec_GFp_simple_group_check_discriminant, + ec_GFp_simple_point_init, + ec_GFp_simple_point_finish, + ec_GFp_simple_point_clear_finish, + ec_GFp_simple_point_copy, + ec_GFp_simple_point_set_to_infinity, + ec_GFp_simple_set_Jprojective_coordinates_GFp, + ec_GFp_simple_get_Jprojective_coordinates_GFp, + ec_GFp_simple_point_set_affine_coordinates, + ec_GFp_simple_point_get_affine_coordinates, + 0, 0, 0, + ec_GFp_simple_add, + ec_GFp_simple_dbl, + ec_GFp_simple_invert, + ec_GFp_simple_is_at_infinity, + ec_GFp_simple_is_on_curve, + ec_GFp_simple_cmp, + ec_GFp_simple_make_affine, + ec_GFp_simple_points_make_affine, + 0 /* mul */ , + 0 /* precompute_mult */ , + 0 /* have_precompute_mult */ , + ec_GFp_nist_field_mul, + ec_GFp_nist_field_sqr, + 0 /* field_div */ , + 0 /* field_encode */ , + 0 /* field_decode */ , + 0 /* field_set_to_one */ + }; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return fips_ec_gfp_nist_method(); +#endif + + return &ret; +} + +int ec_GFp_nist_group_copy(EC_GROUP *dest, const EC_GROUP *src) +{ + dest->field_mod_func = src->field_mod_func; + + return ec_GFp_simple_group_copy(dest, src); +} + +int ec_GFp_nist_group_set_curve(EC_GROUP *group, const BIGNUM *p, + const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx) +{ + int ret = 0; + BN_CTX *new_ctx = NULL; + BIGNUM *tmp_bn; + + if (ctx == NULL) + if ((ctx = new_ctx = BN_CTX_new()) == NULL) + return 0; + + BN_CTX_start(ctx); + if ((tmp_bn = BN_CTX_get(ctx)) == NULL) + goto err; + + if (BN_ucmp(BN_get0_nist_prime_192(), p) == 0) + group->field_mod_func = BN_nist_mod_192; + else if (BN_ucmp(BN_get0_nist_prime_224(), p) == 0) + group->field_mod_func = BN_nist_mod_224; + else if (BN_ucmp(BN_get0_nist_prime_256(), p) == 0) + group->field_mod_func = BN_nist_mod_256; + else if (BN_ucmp(BN_get0_nist_prime_384(), p) == 0) + group->field_mod_func = BN_nist_mod_384; + else if (BN_ucmp(BN_get0_nist_prime_521(), p) == 0) + group->field_mod_func = BN_nist_mod_521; + else { + ECerr(EC_F_EC_GFP_NIST_GROUP_SET_CURVE, EC_R_NOT_A_NIST_PRIME); + goto err; + } + + ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx); + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_nist_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx) +{ + int ret = 0; + BN_CTX *ctx_new = NULL; + + if (!group || !r || !a || !b) { + ECerr(EC_F_EC_GFP_NIST_FIELD_MUL, ERR_R_PASSED_NULL_PARAMETER); + goto err; + } + if (!ctx) + if ((ctx_new = ctx = BN_CTX_new()) == NULL) + goto err; + + if (!BN_mul(r, a, b, ctx)) + goto err; + if (!group->field_mod_func(r, r, &group->field, ctx)) + goto err; + + ret = 1; + err: + if (ctx_new) + BN_CTX_free(ctx_new); + return ret; +} + +int ec_GFp_nist_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, + BN_CTX *ctx) +{ + int ret = 0; + BN_CTX *ctx_new = NULL; + + if (!group || !r || !a) { + ECerr(EC_F_EC_GFP_NIST_FIELD_SQR, EC_R_PASSED_NULL_PARAMETER); + goto err; + } + if (!ctx) + if ((ctx_new = ctx = BN_CTX_new()) == NULL) + goto err; + + if (!BN_sqr(r, a, ctx)) + goto err; + if (!group->field_mod_func(r, r, &group->field, ctx)) + goto err; + + ret = 1; + err: + if (ctx_new) + BN_CTX_free(ctx_new); + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ecp_oct.c b/Cryptlib/OpenSSL/crypto/ec/ecp_oct.c new file mode 100644 index 0000000..1bc3f39 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ecp_oct.c @@ -0,0 +1,428 @@ +/* crypto/ec/ecp_oct.c */ +/* + * Includes code written by Lenka Fibikova + * for the OpenSSL project. Includes code written by Bodo Moeller for the + * OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions of this software developed by SUN MICROSYSTEMS, INC., + * and contributed to the OpenSSL project. + */ + +#include +#include + +#include "ec_lcl.h" + +int ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *group, + EC_POINT *point, + const BIGNUM *x_, int y_bit, + BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + BIGNUM *tmp1, *tmp2, *x, *y; + int ret = 0; + + /* clear error queue */ + ERR_clear_error(); + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + y_bit = (y_bit != 0); + + BN_CTX_start(ctx); + tmp1 = BN_CTX_get(ctx); + tmp2 = BN_CTX_get(ctx); + x = BN_CTX_get(ctx); + y = BN_CTX_get(ctx); + if (y == NULL) + goto err; + + /*- + * Recover y. We have a Weierstrass equation + * y^2 = x^3 + a*x + b, + * so y is one of the square roots of x^3 + a*x + b. + */ + + /* tmp1 := x^3 */ + if (!BN_nnmod(x, x_, &group->field, ctx)) + goto err; + if (group->meth->field_decode == 0) { + /* field_{sqr,mul} work on standard representation */ + if (!group->meth->field_sqr(group, tmp2, x_, ctx)) + goto err; + if (!group->meth->field_mul(group, tmp1, tmp2, x_, ctx)) + goto err; + } else { + if (!BN_mod_sqr(tmp2, x_, &group->field, ctx)) + goto err; + if (!BN_mod_mul(tmp1, tmp2, x_, &group->field, ctx)) + goto err; + } + + /* tmp1 := tmp1 + a*x */ + if (group->a_is_minus3) { + if (!BN_mod_lshift1_quick(tmp2, x, &group->field)) + goto err; + if (!BN_mod_add_quick(tmp2, tmp2, x, &group->field)) + goto err; + if (!BN_mod_sub_quick(tmp1, tmp1, tmp2, &group->field)) + goto err; + } else { + if (group->meth->field_decode) { + if (!group->meth->field_decode(group, tmp2, &group->a, ctx)) + goto err; + if (!BN_mod_mul(tmp2, tmp2, x, &group->field, ctx)) + goto err; + } else { + /* field_mul works on standard representation */ + if (!group->meth->field_mul(group, tmp2, &group->a, x, ctx)) + goto err; + } + + if (!BN_mod_add_quick(tmp1, tmp1, tmp2, &group->field)) + goto err; + } + + /* tmp1 := tmp1 + b */ + if (group->meth->field_decode) { + if (!group->meth->field_decode(group, tmp2, &group->b, ctx)) + goto err; + if (!BN_mod_add_quick(tmp1, tmp1, tmp2, &group->field)) + goto err; + } else { + if (!BN_mod_add_quick(tmp1, tmp1, &group->b, &group->field)) + goto err; + } + + if (!BN_mod_sqrt(y, tmp1, &group->field, ctx)) { + unsigned long err = ERR_peek_last_error(); + + if (ERR_GET_LIB(err) == ERR_LIB_BN + && ERR_GET_REASON(err) == BN_R_NOT_A_SQUARE) { + ERR_clear_error(); + ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES, + EC_R_INVALID_COMPRESSED_POINT); + } else + ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES, + ERR_R_BN_LIB); + goto err; + } + + if (y_bit != BN_is_odd(y)) { + if (BN_is_zero(y)) { + int kron; + + kron = BN_kronecker(x, &group->field, ctx); + if (kron == -2) + goto err; + + if (kron == 1) + ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES, + EC_R_INVALID_COMPRESSION_BIT); + else + /* + * BN_mod_sqrt() should have cought this error (not a square) + */ + ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES, + EC_R_INVALID_COMPRESSED_POINT); + goto err; + } + if (!BN_usub(y, &group->field, y)) + goto err; + } + if (y_bit != BN_is_odd(y)) { + ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES, + ERR_R_INTERNAL_ERROR); + goto err; + } + + if (!EC_POINT_set_affine_coordinates_GFp(group, point, x, y, ctx)) + goto err; + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +size_t ec_GFp_simple_point2oct(const EC_GROUP *group, const EC_POINT *point, + point_conversion_form_t form, + unsigned char *buf, size_t len, BN_CTX *ctx) +{ + size_t ret; + BN_CTX *new_ctx = NULL; + int used_ctx = 0; + BIGNUM *x, *y; + size_t field_len, i, skip; + + if ((form != POINT_CONVERSION_COMPRESSED) + && (form != POINT_CONVERSION_UNCOMPRESSED) + && (form != POINT_CONVERSION_HYBRID)) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, EC_R_INVALID_FORM); + goto err; + } + + if (EC_POINT_is_at_infinity(group, point)) { + /* encodes to a single 0 octet */ + if (buf != NULL) { + if (len < 1) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, EC_R_BUFFER_TOO_SMALL); + return 0; + } + buf[0] = 0; + } + return 1; + } + + /* ret := required output buffer length */ + field_len = BN_num_bytes(&group->field); + ret = + (form == + POINT_CONVERSION_COMPRESSED) ? 1 + field_len : 1 + 2 * field_len; + + /* if 'buf' is NULL, just return required length */ + if (buf != NULL) { + if (len < ret) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, EC_R_BUFFER_TOO_SMALL); + goto err; + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + used_ctx = 1; + x = BN_CTX_get(ctx); + y = BN_CTX_get(ctx); + if (y == NULL) + goto err; + + if (!EC_POINT_get_affine_coordinates_GFp(group, point, x, y, ctx)) + goto err; + + if ((form == POINT_CONVERSION_COMPRESSED + || form == POINT_CONVERSION_HYBRID) && BN_is_odd(y)) + buf[0] = form + 1; + else + buf[0] = form; + + i = 1; + + skip = field_len - BN_num_bytes(x); + if (skip > field_len) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, ERR_R_INTERNAL_ERROR); + goto err; + } + while (skip > 0) { + buf[i++] = 0; + skip--; + } + skip = BN_bn2bin(x, buf + i); + i += skip; + if (i != 1 + field_len) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, ERR_R_INTERNAL_ERROR); + goto err; + } + + if (form == POINT_CONVERSION_UNCOMPRESSED + || form == POINT_CONVERSION_HYBRID) { + skip = field_len - BN_num_bytes(y); + if (skip > field_len) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, ERR_R_INTERNAL_ERROR); + goto err; + } + while (skip > 0) { + buf[i++] = 0; + skip--; + } + skip = BN_bn2bin(y, buf + i); + i += skip; + } + + if (i != ret) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT2OCT, ERR_R_INTERNAL_ERROR); + goto err; + } + } + + if (used_ctx) + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; + + err: + if (used_ctx) + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return 0; +} + +int ec_GFp_simple_oct2point(const EC_GROUP *group, EC_POINT *point, + const unsigned char *buf, size_t len, BN_CTX *ctx) +{ + point_conversion_form_t form; + int y_bit; + BN_CTX *new_ctx = NULL; + BIGNUM *x, *y; + size_t field_len, enc_len; + int ret = 0; + + if (len == 0) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_BUFFER_TOO_SMALL); + return 0; + } + form = buf[0]; + y_bit = form & 1; + form = form & ~1U; + if ((form != 0) && (form != POINT_CONVERSION_COMPRESSED) + && (form != POINT_CONVERSION_UNCOMPRESSED) + && (form != POINT_CONVERSION_HYBRID)) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + return 0; + } + if ((form == 0 || form == POINT_CONVERSION_UNCOMPRESSED) && y_bit) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + return 0; + } + + if (form == 0) { + if (len != 1) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + return 0; + } + + return EC_POINT_set_to_infinity(group, point); + } + + field_len = BN_num_bytes(&group->field); + enc_len = + (form == + POINT_CONVERSION_COMPRESSED) ? 1 + field_len : 1 + 2 * field_len; + + if (len != enc_len) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + return 0; + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + x = BN_CTX_get(ctx); + y = BN_CTX_get(ctx); + if (y == NULL) + goto err; + + if (!BN_bin2bn(buf + 1, field_len, x)) + goto err; + if (BN_ucmp(x, &group->field) >= 0) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + goto err; + } + + if (form == POINT_CONVERSION_COMPRESSED) { + if (!EC_POINT_set_compressed_coordinates_GFp + (group, point, x, y_bit, ctx)) + goto err; + } else { + if (!BN_bin2bn(buf + 1 + field_len, field_len, y)) + goto err; + if (BN_ucmp(y, &group->field) >= 0) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + goto err; + } + if (form == POINT_CONVERSION_HYBRID) { + if (y_bit != BN_is_odd(y)) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING); + goto err; + } + } + + if (!EC_POINT_set_affine_coordinates_GFp(group, point, x, y, ctx)) + goto err; + } + + /* test required by X9.62 */ + if (EC_POINT_is_on_curve(group, point, ctx) <= 0) { + ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_POINT_IS_NOT_ON_CURVE); + goto err; + } + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ec/ecp_smpl.c b/Cryptlib/OpenSSL/crypto/ec/ecp_smpl.c new file mode 100644 index 0000000..2b84821 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ec/ecp_smpl.c @@ -0,0 +1,1418 @@ +/* crypto/ec/ecp_smpl.c */ +/* + * Includes code written by Lenka Fibikova + * for the OpenSSL project. Includes code written by Bodo Moeller for the + * OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions of this software developed by SUN MICROSYSTEMS, INC., + * and contributed to the OpenSSL project. + */ + +#include +#include + +#ifdef OPENSSL_FIPS +# include +#endif + +#include "ec_lcl.h" + +const EC_METHOD *EC_GFp_simple_method(void) +{ + static const EC_METHOD ret = { + EC_FLAGS_DEFAULT_OCT, + NID_X9_62_prime_field, + ec_GFp_simple_group_init, + ec_GFp_simple_group_finish, + ec_GFp_simple_group_clear_finish, + ec_GFp_simple_group_copy, + ec_GFp_simple_group_set_curve, + ec_GFp_simple_group_get_curve, + ec_GFp_simple_group_get_degree, + ec_GFp_simple_group_check_discriminant, + ec_GFp_simple_point_init, + ec_GFp_simple_point_finish, + ec_GFp_simple_point_clear_finish, + ec_GFp_simple_point_copy, + ec_GFp_simple_point_set_to_infinity, + ec_GFp_simple_set_Jprojective_coordinates_GFp, + ec_GFp_simple_get_Jprojective_coordinates_GFp, + ec_GFp_simple_point_set_affine_coordinates, + ec_GFp_simple_point_get_affine_coordinates, + 0, 0, 0, + ec_GFp_simple_add, + ec_GFp_simple_dbl, + ec_GFp_simple_invert, + ec_GFp_simple_is_at_infinity, + ec_GFp_simple_is_on_curve, + ec_GFp_simple_cmp, + ec_GFp_simple_make_affine, + ec_GFp_simple_points_make_affine, + 0 /* mul */ , + 0 /* precompute_mult */ , + 0 /* have_precompute_mult */ , + ec_GFp_simple_field_mul, + ec_GFp_simple_field_sqr, + 0 /* field_div */ , + 0 /* field_encode */ , + 0 /* field_decode */ , + 0 /* field_set_to_one */ + }; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return fips_ec_gfp_simple_method(); +#endif + + return &ret; +} + +/* + * Most method functions in this file are designed to work with + * non-trivial representations of field elements if necessary + * (see ecp_mont.c): while standard modular addition and subtraction + * are used, the field_mul and field_sqr methods will be used for + * multiplication, and field_encode and field_decode (if defined) + * will be used for converting between representations. + * + * Functions ec_GFp_simple_points_make_affine() and + * ec_GFp_simple_point_get_affine_coordinates() specifically assume + * that if a non-trivial representation is used, it is a Montgomery + * representation (i.e. 'encoding' means multiplying by some factor R). + */ + +int ec_GFp_simple_group_init(EC_GROUP *group) +{ + BN_init(&group->field); + BN_init(&group->a); + BN_init(&group->b); + group->a_is_minus3 = 0; + return 1; +} + +void ec_GFp_simple_group_finish(EC_GROUP *group) +{ + BN_free(&group->field); + BN_free(&group->a); + BN_free(&group->b); +} + +void ec_GFp_simple_group_clear_finish(EC_GROUP *group) +{ + BN_clear_free(&group->field); + BN_clear_free(&group->a); + BN_clear_free(&group->b); +} + +int ec_GFp_simple_group_copy(EC_GROUP *dest, const EC_GROUP *src) +{ + if (!BN_copy(&dest->field, &src->field)) + return 0; + if (!BN_copy(&dest->a, &src->a)) + return 0; + if (!BN_copy(&dest->b, &src->b)) + return 0; + + dest->a_is_minus3 = src->a_is_minus3; + + return 1; +} + +int ec_GFp_simple_group_set_curve(EC_GROUP *group, + const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx) +{ + int ret = 0; + BN_CTX *new_ctx = NULL; + BIGNUM *tmp_a; + + /* p must be a prime > 3 */ + if (BN_num_bits(p) <= 2 || !BN_is_odd(p)) { + ECerr(EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE, EC_R_INVALID_FIELD); + return 0; + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + tmp_a = BN_CTX_get(ctx); + if (tmp_a == NULL) + goto err; + + /* group->field */ + if (!BN_copy(&group->field, p)) + goto err; + BN_set_negative(&group->field, 0); + + /* group->a */ + if (!BN_nnmod(tmp_a, a, p, ctx)) + goto err; + if (group->meth->field_encode) { + if (!group->meth->field_encode(group, &group->a, tmp_a, ctx)) + goto err; + } else if (!BN_copy(&group->a, tmp_a)) + goto err; + + /* group->b */ + if (!BN_nnmod(&group->b, b, p, ctx)) + goto err; + if (group->meth->field_encode) + if (!group->meth->field_encode(group, &group->b, &group->b, ctx)) + goto err; + + /* group->a_is_minus3 */ + if (!BN_add_word(tmp_a, 3)) + goto err; + group->a_is_minus3 = (0 == BN_cmp(tmp_a, &group->field)); + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_group_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, + BIGNUM *b, BN_CTX *ctx) +{ + int ret = 0; + BN_CTX *new_ctx = NULL; + + if (p != NULL) { + if (!BN_copy(p, &group->field)) + return 0; + } + + if (a != NULL || b != NULL) { + if (group->meth->field_decode) { + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + if (a != NULL) { + if (!group->meth->field_decode(group, a, &group->a, ctx)) + goto err; + } + if (b != NULL) { + if (!group->meth->field_decode(group, b, &group->b, ctx)) + goto err; + } + } else { + if (a != NULL) { + if (!BN_copy(a, &group->a)) + goto err; + } + if (b != NULL) { + if (!BN_copy(b, &group->b)) + goto err; + } + } + } + + ret = 1; + + err: + if (new_ctx) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_group_get_degree(const EC_GROUP *group) +{ + return BN_num_bits(&group->field); +} + +int ec_GFp_simple_group_check_discriminant(const EC_GROUP *group, BN_CTX *ctx) +{ + int ret = 0; + BIGNUM *a, *b, *order, *tmp_1, *tmp_2; + const BIGNUM *p = &group->field; + BN_CTX *new_ctx = NULL; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) { + ECerr(EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT, + ERR_R_MALLOC_FAILURE); + goto err; + } + } + BN_CTX_start(ctx); + a = BN_CTX_get(ctx); + b = BN_CTX_get(ctx); + tmp_1 = BN_CTX_get(ctx); + tmp_2 = BN_CTX_get(ctx); + order = BN_CTX_get(ctx); + if (order == NULL) + goto err; + + if (group->meth->field_decode) { + if (!group->meth->field_decode(group, a, &group->a, ctx)) + goto err; + if (!group->meth->field_decode(group, b, &group->b, ctx)) + goto err; + } else { + if (!BN_copy(a, &group->a)) + goto err; + if (!BN_copy(b, &group->b)) + goto err; + } + + /*- + * check the discriminant: + * y^2 = x^3 + a*x + b is an elliptic curve <=> 4*a^3 + 27*b^2 != 0 (mod p) + * 0 =< a, b < p + */ + if (BN_is_zero(a)) { + if (BN_is_zero(b)) + goto err; + } else if (!BN_is_zero(b)) { + if (!BN_mod_sqr(tmp_1, a, p, ctx)) + goto err; + if (!BN_mod_mul(tmp_2, tmp_1, a, p, ctx)) + goto err; + if (!BN_lshift(tmp_1, tmp_2, 2)) + goto err; + /* tmp_1 = 4*a^3 */ + + if (!BN_mod_sqr(tmp_2, b, p, ctx)) + goto err; + if (!BN_mul_word(tmp_2, 27)) + goto err; + /* tmp_2 = 27*b^2 */ + + if (!BN_mod_add(a, tmp_1, tmp_2, p, ctx)) + goto err; + if (BN_is_zero(a)) + goto err; + } + ret = 1; + + err: + if (ctx != NULL) + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_point_init(EC_POINT *point) +{ + BN_init(&point->X); + BN_init(&point->Y); + BN_init(&point->Z); + point->Z_is_one = 0; + + return 1; +} + +void ec_GFp_simple_point_finish(EC_POINT *point) +{ + BN_free(&point->X); + BN_free(&point->Y); + BN_free(&point->Z); +} + +void ec_GFp_simple_point_clear_finish(EC_POINT *point) +{ + BN_clear_free(&point->X); + BN_clear_free(&point->Y); + BN_clear_free(&point->Z); + point->Z_is_one = 0; +} + +int ec_GFp_simple_point_copy(EC_POINT *dest, const EC_POINT *src) +{ + if (!BN_copy(&dest->X, &src->X)) + return 0; + if (!BN_copy(&dest->Y, &src->Y)) + return 0; + if (!BN_copy(&dest->Z, &src->Z)) + return 0; + dest->Z_is_one = src->Z_is_one; + + return 1; +} + +int ec_GFp_simple_point_set_to_infinity(const EC_GROUP *group, + EC_POINT *point) +{ + point->Z_is_one = 0; + BN_zero(&point->Z); + return 1; +} + +int ec_GFp_simple_set_Jprojective_coordinates_GFp(const EC_GROUP *group, + EC_POINT *point, + const BIGNUM *x, + const BIGNUM *y, + const BIGNUM *z, + BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + int ret = 0; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + if (x != NULL) { + if (!BN_nnmod(&point->X, x, &group->field, ctx)) + goto err; + if (group->meth->field_encode) { + if (!group->meth->field_encode(group, &point->X, &point->X, ctx)) + goto err; + } + } + + if (y != NULL) { + if (!BN_nnmod(&point->Y, y, &group->field, ctx)) + goto err; + if (group->meth->field_encode) { + if (!group->meth->field_encode(group, &point->Y, &point->Y, ctx)) + goto err; + } + } + + if (z != NULL) { + int Z_is_one; + + if (!BN_nnmod(&point->Z, z, &group->field, ctx)) + goto err; + Z_is_one = BN_is_one(&point->Z); + if (group->meth->field_encode) { + if (Z_is_one && (group->meth->field_set_to_one != 0)) { + if (!group->meth->field_set_to_one(group, &point->Z, ctx)) + goto err; + } else { + if (!group-> + meth->field_encode(group, &point->Z, &point->Z, ctx)) + goto err; + } + } + point->Z_is_one = Z_is_one; + } + + ret = 1; + + err: + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_get_Jprojective_coordinates_GFp(const EC_GROUP *group, + const EC_POINT *point, + BIGNUM *x, BIGNUM *y, + BIGNUM *z, BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + int ret = 0; + + if (group->meth->field_decode != 0) { + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + if (x != NULL) { + if (!group->meth->field_decode(group, x, &point->X, ctx)) + goto err; + } + if (y != NULL) { + if (!group->meth->field_decode(group, y, &point->Y, ctx)) + goto err; + } + if (z != NULL) { + if (!group->meth->field_decode(group, z, &point->Z, ctx)) + goto err; + } + } else { + if (x != NULL) { + if (!BN_copy(x, &point->X)) + goto err; + } + if (y != NULL) { + if (!BN_copy(y, &point->Y)) + goto err; + } + if (z != NULL) { + if (!BN_copy(z, &point->Z)) + goto err; + } + } + + ret = 1; + + err: + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_point_set_affine_coordinates(const EC_GROUP *group, + EC_POINT *point, + const BIGNUM *x, + const BIGNUM *y, BN_CTX *ctx) +{ + if (x == NULL || y == NULL) { + /* + * unlike for projective coordinates, we do not tolerate this + */ + ECerr(EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES, + ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + return EC_POINT_set_Jprojective_coordinates_GFp(group, point, x, y, + BN_value_one(), ctx); +} + +int ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *group, + const EC_POINT *point, + BIGNUM *x, BIGNUM *y, + BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + BIGNUM *Z, *Z_1, *Z_2, *Z_3; + const BIGNUM *Z_; + int ret = 0; + + if (EC_POINT_is_at_infinity(group, point)) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES, + EC_R_POINT_AT_INFINITY); + return 0; + } + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + Z = BN_CTX_get(ctx); + Z_1 = BN_CTX_get(ctx); + Z_2 = BN_CTX_get(ctx); + Z_3 = BN_CTX_get(ctx); + if (Z_3 == NULL) + goto err; + + /* transform (X, Y, Z) into (x, y) := (X/Z^2, Y/Z^3) */ + + if (group->meth->field_decode) { + if (!group->meth->field_decode(group, Z, &point->Z, ctx)) + goto err; + Z_ = Z; + } else { + Z_ = &point->Z; + } + + if (BN_is_one(Z_)) { + if (group->meth->field_decode) { + if (x != NULL) { + if (!group->meth->field_decode(group, x, &point->X, ctx)) + goto err; + } + if (y != NULL) { + if (!group->meth->field_decode(group, y, &point->Y, ctx)) + goto err; + } + } else { + if (x != NULL) { + if (!BN_copy(x, &point->X)) + goto err; + } + if (y != NULL) { + if (!BN_copy(y, &point->Y)) + goto err; + } + } + } else { + if (!BN_mod_inverse(Z_1, Z_, &group->field, ctx)) { + ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES, + ERR_R_BN_LIB); + goto err; + } + + if (group->meth->field_encode == 0) { + /* field_sqr works on standard representation */ + if (!group->meth->field_sqr(group, Z_2, Z_1, ctx)) + goto err; + } else { + if (!BN_mod_sqr(Z_2, Z_1, &group->field, ctx)) + goto err; + } + + if (x != NULL) { + /* + * in the Montgomery case, field_mul will cancel out Montgomery + * factor in X: + */ + if (!group->meth->field_mul(group, x, &point->X, Z_2, ctx)) + goto err; + } + + if (y != NULL) { + if (group->meth->field_encode == 0) { + /* + * field_mul works on standard representation + */ + if (!group->meth->field_mul(group, Z_3, Z_2, Z_1, ctx)) + goto err; + } else { + if (!BN_mod_mul(Z_3, Z_2, Z_1, &group->field, ctx)) + goto err; + } + + /* + * in the Montgomery case, field_mul will cancel out Montgomery + * factor in Y: + */ + if (!group->meth->field_mul(group, y, &point->Y, Z_3, ctx)) + goto err; + } + } + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, + const EC_POINT *b, BN_CTX *ctx) +{ + int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, + const BIGNUM *, BN_CTX *); + int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *); + const BIGNUM *p; + BN_CTX *new_ctx = NULL; + BIGNUM *n0, *n1, *n2, *n3, *n4, *n5, *n6; + int ret = 0; + + if (a == b) + return EC_POINT_dbl(group, r, a, ctx); + if (EC_POINT_is_at_infinity(group, a)) + return EC_POINT_copy(r, b); + if (EC_POINT_is_at_infinity(group, b)) + return EC_POINT_copy(r, a); + + field_mul = group->meth->field_mul; + field_sqr = group->meth->field_sqr; + p = &group->field; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + n0 = BN_CTX_get(ctx); + n1 = BN_CTX_get(ctx); + n2 = BN_CTX_get(ctx); + n3 = BN_CTX_get(ctx); + n4 = BN_CTX_get(ctx); + n5 = BN_CTX_get(ctx); + n6 = BN_CTX_get(ctx); + if (n6 == NULL) + goto end; + + /* + * Note that in this function we must not read components of 'a' or 'b' + * once we have written the corresponding components of 'r'. ('r' might + * be one of 'a' or 'b'.) + */ + + /* n1, n2 */ + if (b->Z_is_one) { + if (!BN_copy(n1, &a->X)) + goto end; + if (!BN_copy(n2, &a->Y)) + goto end; + /* n1 = X_a */ + /* n2 = Y_a */ + } else { + if (!field_sqr(group, n0, &b->Z, ctx)) + goto end; + if (!field_mul(group, n1, &a->X, n0, ctx)) + goto end; + /* n1 = X_a * Z_b^2 */ + + if (!field_mul(group, n0, n0, &b->Z, ctx)) + goto end; + if (!field_mul(group, n2, &a->Y, n0, ctx)) + goto end; + /* n2 = Y_a * Z_b^3 */ + } + + /* n3, n4 */ + if (a->Z_is_one) { + if (!BN_copy(n3, &b->X)) + goto end; + if (!BN_copy(n4, &b->Y)) + goto end; + /* n3 = X_b */ + /* n4 = Y_b */ + } else { + if (!field_sqr(group, n0, &a->Z, ctx)) + goto end; + if (!field_mul(group, n3, &b->X, n0, ctx)) + goto end; + /* n3 = X_b * Z_a^2 */ + + if (!field_mul(group, n0, n0, &a->Z, ctx)) + goto end; + if (!field_mul(group, n4, &b->Y, n0, ctx)) + goto end; + /* n4 = Y_b * Z_a^3 */ + } + + /* n5, n6 */ + if (!BN_mod_sub_quick(n5, n1, n3, p)) + goto end; + if (!BN_mod_sub_quick(n6, n2, n4, p)) + goto end; + /* n5 = n1 - n3 */ + /* n6 = n2 - n4 */ + + if (BN_is_zero(n5)) { + if (BN_is_zero(n6)) { + /* a is the same point as b */ + BN_CTX_end(ctx); + ret = EC_POINT_dbl(group, r, a, ctx); + ctx = NULL; + goto end; + } else { + /* a is the inverse of b */ + BN_zero(&r->Z); + r->Z_is_one = 0; + ret = 1; + goto end; + } + } + + /* 'n7', 'n8' */ + if (!BN_mod_add_quick(n1, n1, n3, p)) + goto end; + if (!BN_mod_add_quick(n2, n2, n4, p)) + goto end; + /* 'n7' = n1 + n3 */ + /* 'n8' = n2 + n4 */ + + /* Z_r */ + if (a->Z_is_one && b->Z_is_one) { + if (!BN_copy(&r->Z, n5)) + goto end; + } else { + if (a->Z_is_one) { + if (!BN_copy(n0, &b->Z)) + goto end; + } else if (b->Z_is_one) { + if (!BN_copy(n0, &a->Z)) + goto end; + } else { + if (!field_mul(group, n0, &a->Z, &b->Z, ctx)) + goto end; + } + if (!field_mul(group, &r->Z, n0, n5, ctx)) + goto end; + } + r->Z_is_one = 0; + /* Z_r = Z_a * Z_b * n5 */ + + /* X_r */ + if (!field_sqr(group, n0, n6, ctx)) + goto end; + if (!field_sqr(group, n4, n5, ctx)) + goto end; + if (!field_mul(group, n3, n1, n4, ctx)) + goto end; + if (!BN_mod_sub_quick(&r->X, n0, n3, p)) + goto end; + /* X_r = n6^2 - n5^2 * 'n7' */ + + /* 'n9' */ + if (!BN_mod_lshift1_quick(n0, &r->X, p)) + goto end; + if (!BN_mod_sub_quick(n0, n3, n0, p)) + goto end; + /* n9 = n5^2 * 'n7' - 2 * X_r */ + + /* Y_r */ + if (!field_mul(group, n0, n0, n6, ctx)) + goto end; + if (!field_mul(group, n5, n4, n5, ctx)) + goto end; /* now n5 is n5^3 */ + if (!field_mul(group, n1, n2, n5, ctx)) + goto end; + if (!BN_mod_sub_quick(n0, n0, n1, p)) + goto end; + if (BN_is_odd(n0)) + if (!BN_add(n0, n0, p)) + goto end; + /* now 0 <= n0 < 2*p, and n0 is even */ + if (!BN_rshift1(&r->Y, n0)) + goto end; + /* Y_r = (n6 * 'n9' - 'n8' * 'n5^3') / 2 */ + + ret = 1; + + end: + if (ctx) /* otherwise we already called BN_CTX_end */ + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, + BN_CTX *ctx) +{ + int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, + const BIGNUM *, BN_CTX *); + int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *); + const BIGNUM *p; + BN_CTX *new_ctx = NULL; + BIGNUM *n0, *n1, *n2, *n3; + int ret = 0; + + if (EC_POINT_is_at_infinity(group, a)) { + BN_zero(&r->Z); + r->Z_is_one = 0; + return 1; + } + + field_mul = group->meth->field_mul; + field_sqr = group->meth->field_sqr; + p = &group->field; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + n0 = BN_CTX_get(ctx); + n1 = BN_CTX_get(ctx); + n2 = BN_CTX_get(ctx); + n3 = BN_CTX_get(ctx); + if (n3 == NULL) + goto err; + + /* + * Note that in this function we must not read components of 'a' once we + * have written the corresponding components of 'r'. ('r' might the same + * as 'a'.) + */ + + /* n1 */ + if (a->Z_is_one) { + if (!field_sqr(group, n0, &a->X, ctx)) + goto err; + if (!BN_mod_lshift1_quick(n1, n0, p)) + goto err; + if (!BN_mod_add_quick(n0, n0, n1, p)) + goto err; + if (!BN_mod_add_quick(n1, n0, &group->a, p)) + goto err; + /* n1 = 3 * X_a^2 + a_curve */ + } else if (group->a_is_minus3) { + if (!field_sqr(group, n1, &a->Z, ctx)) + goto err; + if (!BN_mod_add_quick(n0, &a->X, n1, p)) + goto err; + if (!BN_mod_sub_quick(n2, &a->X, n1, p)) + goto err; + if (!field_mul(group, n1, n0, n2, ctx)) + goto err; + if (!BN_mod_lshift1_quick(n0, n1, p)) + goto err; + if (!BN_mod_add_quick(n1, n0, n1, p)) + goto err; + /*- + * n1 = 3 * (X_a + Z_a^2) * (X_a - Z_a^2) + * = 3 * X_a^2 - 3 * Z_a^4 + */ + } else { + if (!field_sqr(group, n0, &a->X, ctx)) + goto err; + if (!BN_mod_lshift1_quick(n1, n0, p)) + goto err; + if (!BN_mod_add_quick(n0, n0, n1, p)) + goto err; + if (!field_sqr(group, n1, &a->Z, ctx)) + goto err; + if (!field_sqr(group, n1, n1, ctx)) + goto err; + if (!field_mul(group, n1, n1, &group->a, ctx)) + goto err; + if (!BN_mod_add_quick(n1, n1, n0, p)) + goto err; + /* n1 = 3 * X_a^2 + a_curve * Z_a^4 */ + } + + /* Z_r */ + if (a->Z_is_one) { + if (!BN_copy(n0, &a->Y)) + goto err; + } else { + if (!field_mul(group, n0, &a->Y, &a->Z, ctx)) + goto err; + } + if (!BN_mod_lshift1_quick(&r->Z, n0, p)) + goto err; + r->Z_is_one = 0; + /* Z_r = 2 * Y_a * Z_a */ + + /* n2 */ + if (!field_sqr(group, n3, &a->Y, ctx)) + goto err; + if (!field_mul(group, n2, &a->X, n3, ctx)) + goto err; + if (!BN_mod_lshift_quick(n2, n2, 2, p)) + goto err; + /* n2 = 4 * X_a * Y_a^2 */ + + /* X_r */ + if (!BN_mod_lshift1_quick(n0, n2, p)) + goto err; + if (!field_sqr(group, &r->X, n1, ctx)) + goto err; + if (!BN_mod_sub_quick(&r->X, &r->X, n0, p)) + goto err; + /* X_r = n1^2 - 2 * n2 */ + + /* n3 */ + if (!field_sqr(group, n0, n3, ctx)) + goto err; + if (!BN_mod_lshift_quick(n3, n0, 3, p)) + goto err; + /* n3 = 8 * Y_a^4 */ + + /* Y_r */ + if (!BN_mod_sub_quick(n0, n2, &r->X, p)) + goto err; + if (!field_mul(group, n0, n1, n0, ctx)) + goto err; + if (!BN_mod_sub_quick(&r->Y, n0, n3, p)) + goto err; + /* Y_r = n1 * (n2 - X_r) - n3 */ + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_invert(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx) +{ + if (EC_POINT_is_at_infinity(group, point) || BN_is_zero(&point->Y)) + /* point is its own inverse */ + return 1; + + return BN_usub(&point->Y, &group->field, &point->Y); +} + +int ec_GFp_simple_is_at_infinity(const EC_GROUP *group, const EC_POINT *point) +{ + return BN_is_zero(&point->Z); +} + +int ec_GFp_simple_is_on_curve(const EC_GROUP *group, const EC_POINT *point, + BN_CTX *ctx) +{ + int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, + const BIGNUM *, BN_CTX *); + int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *); + const BIGNUM *p; + BN_CTX *new_ctx = NULL; + BIGNUM *rh, *tmp, *Z4, *Z6; + int ret = -1; + + if (EC_POINT_is_at_infinity(group, point)) + return 1; + + field_mul = group->meth->field_mul; + field_sqr = group->meth->field_sqr; + p = &group->field; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return -1; + } + + BN_CTX_start(ctx); + rh = BN_CTX_get(ctx); + tmp = BN_CTX_get(ctx); + Z4 = BN_CTX_get(ctx); + Z6 = BN_CTX_get(ctx); + if (Z6 == NULL) + goto err; + + /*- + * We have a curve defined by a Weierstrass equation + * y^2 = x^3 + a*x + b. + * The point to consider is given in Jacobian projective coordinates + * where (X, Y, Z) represents (x, y) = (X/Z^2, Y/Z^3). + * Substituting this and multiplying by Z^6 transforms the above equation into + * Y^2 = X^3 + a*X*Z^4 + b*Z^6. + * To test this, we add up the right-hand side in 'rh'. + */ + + /* rh := X^2 */ + if (!field_sqr(group, rh, &point->X, ctx)) + goto err; + + if (!point->Z_is_one) { + if (!field_sqr(group, tmp, &point->Z, ctx)) + goto err; + if (!field_sqr(group, Z4, tmp, ctx)) + goto err; + if (!field_mul(group, Z6, Z4, tmp, ctx)) + goto err; + + /* rh := (rh + a*Z^4)*X */ + if (group->a_is_minus3) { + if (!BN_mod_lshift1_quick(tmp, Z4, p)) + goto err; + if (!BN_mod_add_quick(tmp, tmp, Z4, p)) + goto err; + if (!BN_mod_sub_quick(rh, rh, tmp, p)) + goto err; + if (!field_mul(group, rh, rh, &point->X, ctx)) + goto err; + } else { + if (!field_mul(group, tmp, Z4, &group->a, ctx)) + goto err; + if (!BN_mod_add_quick(rh, rh, tmp, p)) + goto err; + if (!field_mul(group, rh, rh, &point->X, ctx)) + goto err; + } + + /* rh := rh + b*Z^6 */ + if (!field_mul(group, tmp, &group->b, Z6, ctx)) + goto err; + if (!BN_mod_add_quick(rh, rh, tmp, p)) + goto err; + } else { + /* point->Z_is_one */ + + /* rh := (rh + a)*X */ + if (!BN_mod_add_quick(rh, rh, &group->a, p)) + goto err; + if (!field_mul(group, rh, rh, &point->X, ctx)) + goto err; + /* rh := rh + b */ + if (!BN_mod_add_quick(rh, rh, &group->b, p)) + goto err; + } + + /* 'lh' := Y^2 */ + if (!field_sqr(group, tmp, &point->Y, ctx)) + goto err; + + ret = (0 == BN_ucmp(tmp, rh)); + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_cmp(const EC_GROUP *group, const EC_POINT *a, + const EC_POINT *b, BN_CTX *ctx) +{ + /*- + * return values: + * -1 error + * 0 equal (in affine coordinates) + * 1 not equal + */ + + int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, + const BIGNUM *, BN_CTX *); + int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *); + BN_CTX *new_ctx = NULL; + BIGNUM *tmp1, *tmp2, *Za23, *Zb23; + const BIGNUM *tmp1_, *tmp2_; + int ret = -1; + + if (EC_POINT_is_at_infinity(group, a)) { + return EC_POINT_is_at_infinity(group, b) ? 0 : 1; + } + + if (EC_POINT_is_at_infinity(group, b)) + return 1; + + if (a->Z_is_one && b->Z_is_one) { + return ((BN_cmp(&a->X, &b->X) == 0) + && BN_cmp(&a->Y, &b->Y) == 0) ? 0 : 1; + } + + field_mul = group->meth->field_mul; + field_sqr = group->meth->field_sqr; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return -1; + } + + BN_CTX_start(ctx); + tmp1 = BN_CTX_get(ctx); + tmp2 = BN_CTX_get(ctx); + Za23 = BN_CTX_get(ctx); + Zb23 = BN_CTX_get(ctx); + if (Zb23 == NULL) + goto end; + + /*- + * We have to decide whether + * (X_a/Z_a^2, Y_a/Z_a^3) = (X_b/Z_b^2, Y_b/Z_b^3), + * or equivalently, whether + * (X_a*Z_b^2, Y_a*Z_b^3) = (X_b*Z_a^2, Y_b*Z_a^3). + */ + + if (!b->Z_is_one) { + if (!field_sqr(group, Zb23, &b->Z, ctx)) + goto end; + if (!field_mul(group, tmp1, &a->X, Zb23, ctx)) + goto end; + tmp1_ = tmp1; + } else + tmp1_ = &a->X; + if (!a->Z_is_one) { + if (!field_sqr(group, Za23, &a->Z, ctx)) + goto end; + if (!field_mul(group, tmp2, &b->X, Za23, ctx)) + goto end; + tmp2_ = tmp2; + } else + tmp2_ = &b->X; + + /* compare X_a*Z_b^2 with X_b*Z_a^2 */ + if (BN_cmp(tmp1_, tmp2_) != 0) { + ret = 1; /* points differ */ + goto end; + } + + if (!b->Z_is_one) { + if (!field_mul(group, Zb23, Zb23, &b->Z, ctx)) + goto end; + if (!field_mul(group, tmp1, &a->Y, Zb23, ctx)) + goto end; + /* tmp1_ = tmp1 */ + } else + tmp1_ = &a->Y; + if (!a->Z_is_one) { + if (!field_mul(group, Za23, Za23, &a->Z, ctx)) + goto end; + if (!field_mul(group, tmp2, &b->Y, Za23, ctx)) + goto end; + /* tmp2_ = tmp2 */ + } else + tmp2_ = &b->Y; + + /* compare Y_a*Z_b^3 with Y_b*Z_a^3 */ + if (BN_cmp(tmp1_, tmp2_) != 0) { + ret = 1; /* points differ */ + goto end; + } + + /* points are equal */ + ret = 0; + + end: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_make_affine(const EC_GROUP *group, EC_POINT *point, + BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + BIGNUM *x, *y; + int ret = 0; + + if (point->Z_is_one || EC_POINT_is_at_infinity(group, point)) + return 1; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + x = BN_CTX_get(ctx); + y = BN_CTX_get(ctx); + if (y == NULL) + goto err; + + if (!EC_POINT_get_affine_coordinates_GFp(group, point, x, y, ctx)) + goto err; + if (!EC_POINT_set_affine_coordinates_GFp(group, point, x, y, ctx)) + goto err; + if (!point->Z_is_one) { + ECerr(EC_F_EC_GFP_SIMPLE_MAKE_AFFINE, ERR_R_INTERNAL_ERROR); + goto err; + } + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + return ret; +} + +int ec_GFp_simple_points_make_affine(const EC_GROUP *group, size_t num, + EC_POINT *points[], BN_CTX *ctx) +{ + BN_CTX *new_ctx = NULL; + BIGNUM *tmp, *tmp_Z; + BIGNUM **prod_Z = NULL; + size_t i; + int ret = 0; + + if (num == 0) + return 1; + + if (ctx == NULL) { + ctx = new_ctx = BN_CTX_new(); + if (ctx == NULL) + return 0; + } + + BN_CTX_start(ctx); + tmp = BN_CTX_get(ctx); + tmp_Z = BN_CTX_get(ctx); + if (tmp == NULL || tmp_Z == NULL) + goto err; + + prod_Z = OPENSSL_malloc(num * sizeof prod_Z[0]); + if (prod_Z == NULL) + goto err; + for (i = 0; i < num; i++) { + prod_Z[i] = BN_new(); + if (prod_Z[i] == NULL) + goto err; + } + + /* + * Set each prod_Z[i] to the product of points[0]->Z .. points[i]->Z, + * skipping any zero-valued inputs (pretend that they're 1). + */ + + if (!BN_is_zero(&points[0]->Z)) { + if (!BN_copy(prod_Z[0], &points[0]->Z)) + goto err; + } else { + if (group->meth->field_set_to_one != 0) { + if (!group->meth->field_set_to_one(group, prod_Z[0], ctx)) + goto err; + } else { + if (!BN_one(prod_Z[0])) + goto err; + } + } + + for (i = 1; i < num; i++) { + if (!BN_is_zero(&points[i]->Z)) { + if (!group->meth->field_mul(group, prod_Z[i], prod_Z[i - 1], + &points[i]->Z, ctx)) + goto err; + } else { + if (!BN_copy(prod_Z[i], prod_Z[i - 1])) + goto err; + } + } + + /* + * Now use a single explicit inversion to replace every non-zero + * points[i]->Z by its inverse. + */ + + if (!BN_mod_inverse(tmp, prod_Z[num - 1], &group->field, ctx)) { + ECerr(EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE, ERR_R_BN_LIB); + goto err; + } + if (group->meth->field_encode != 0) { + /* + * In the Montgomery case, we just turned R*H (representing H) into + * 1/(R*H), but we need R*(1/H) (representing 1/H); i.e. we need to + * multiply by the Montgomery factor twice. + */ + if (!group->meth->field_encode(group, tmp, tmp, ctx)) + goto err; + if (!group->meth->field_encode(group, tmp, tmp, ctx)) + goto err; + } + + for (i = num - 1; i > 0; --i) { + /* + * Loop invariant: tmp is the product of the inverses of points[0]->Z + * .. points[i]->Z (zero-valued inputs skipped). + */ + if (!BN_is_zero(&points[i]->Z)) { + /* + * Set tmp_Z to the inverse of points[i]->Z (as product of Z + * inverses 0 .. i, Z values 0 .. i - 1). + */ + if (!group-> + meth->field_mul(group, tmp_Z, prod_Z[i - 1], tmp, ctx)) + goto err; + /* + * Update tmp to satisfy the loop invariant for i - 1. + */ + if (!group->meth->field_mul(group, tmp, tmp, &points[i]->Z, ctx)) + goto err; + /* Replace points[i]->Z by its inverse. */ + if (!BN_copy(&points[i]->Z, tmp_Z)) + goto err; + } + } + + if (!BN_is_zero(&points[0]->Z)) { + /* Replace points[0]->Z by its inverse. */ + if (!BN_copy(&points[0]->Z, tmp)) + goto err; + } + + /* Finally, fix up the X and Y coordinates for all points. */ + + for (i = 0; i < num; i++) { + EC_POINT *p = points[i]; + + if (!BN_is_zero(&p->Z)) { + /* turn (X, Y, 1/Z) into (X/Z^2, Y/Z^3, 1) */ + + if (!group->meth->field_sqr(group, tmp, &p->Z, ctx)) + goto err; + if (!group->meth->field_mul(group, &p->X, &p->X, tmp, ctx)) + goto err; + + if (!group->meth->field_mul(group, tmp, tmp, &p->Z, ctx)) + goto err; + if (!group->meth->field_mul(group, &p->Y, &p->Y, tmp, ctx)) + goto err; + + if (group->meth->field_set_to_one != 0) { + if (!group->meth->field_set_to_one(group, &p->Z, ctx)) + goto err; + } else { + if (!BN_one(&p->Z)) + goto err; + } + p->Z_is_one = 1; + } + } + + ret = 1; + + err: + BN_CTX_end(ctx); + if (new_ctx != NULL) + BN_CTX_free(new_ctx); + if (prod_Z != NULL) { + for (i = 0; i < num; i++) { + if (prod_Z[i] == NULL) + break; + BN_clear_free(prod_Z[i]); + } + OPENSSL_free(prod_Z); + } + return ret; +} + +int ec_GFp_simple_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx) +{ + return BN_mod_mul(r, a, b, &group->field, ctx); +} + +int ec_GFp_simple_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, + BN_CTX *ctx) +{ + return BN_mod_sqr(r, a, &group->field, ctx); +} diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_asn1.c b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_asn1.c new file mode 100644 index 0000000..77a290d --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_asn1.c @@ -0,0 +1,75 @@ +/* crypto/ecdsa/ecs_asn1.c */ +/* ==================================================================== + * Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ecs_locl.h" +#include +#include + +ASN1_SEQUENCE(ECDSA_SIG) = { + ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM), + ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM) +} ASN1_SEQUENCE_END(ECDSA_SIG) + +DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG) +IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG) + +void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) +{ + if (pr != NULL) + *pr = sig->r; + if (ps != NULL) + *ps = sig->s; +} diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_err.c b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_err.c new file mode 100644 index 0000000..f1fa7b5 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_err.c @@ -0,0 +1,107 @@ +/* crypto/ecdsa/ecs_err.c */ +/* ==================================================================== + * Copyright (c) 1999-2011 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/* + * NOTE: this file was auto generated by the mkerr.pl script: any changes + * made to it will be overwritten when the script next updates this file, + * only reason strings will be preserved. + */ + +#include +#include +#include + +/* BEGIN ERROR CODES */ +#ifndef OPENSSL_NO_ERR + +# define ERR_FUNC(func) ERR_PACK(ERR_LIB_ECDSA,func,0) +# define ERR_REASON(reason) ERR_PACK(ERR_LIB_ECDSA,0,reason) + +static ERR_STRING_DATA ECDSA_str_functs[] = { + {ERR_FUNC(ECDSA_F_ECDSA_CHECK), "ECDSA_CHECK"}, + {ERR_FUNC(ECDSA_F_ECDSA_DATA_NEW_METHOD), "ECDSA_DATA_NEW_METHOD"}, + {ERR_FUNC(ECDSA_F_ECDSA_DO_SIGN), "ECDSA_do_sign"}, + {ERR_FUNC(ECDSA_F_ECDSA_DO_VERIFY), "ECDSA_do_verify"}, + {ERR_FUNC(ECDSA_F_ECDSA_METHOD_NEW), "ECDSA_METHOD_new"}, + {ERR_FUNC(ECDSA_F_ECDSA_SIGN_SETUP), "ECDSA_sign_setup"}, + {0, NULL} +}; + +static ERR_STRING_DATA ECDSA_str_reasons[] = { + {ERR_REASON(ECDSA_R_BAD_SIGNATURE), "bad signature"}, + {ERR_REASON(ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE), + "data too large for key size"}, + {ERR_REASON(ECDSA_R_ERR_EC_LIB), "err ec lib"}, + {ERR_REASON(ECDSA_R_MISSING_PARAMETERS), "missing parameters"}, + {ERR_REASON(ECDSA_R_NEED_NEW_SETUP_VALUES), "need new setup values"}, + {ERR_REASON(ECDSA_R_NON_FIPS_METHOD), "non fips method"}, + {ERR_REASON(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED), + "random number generation failed"}, + {ERR_REASON(ECDSA_R_SIGNATURE_MALLOC_FAILED), "signature malloc failed"}, + {0, NULL} +}; + +#endif + +void ERR_load_ECDSA_strings(void) +{ +#ifndef OPENSSL_NO_ERR + + if (ERR_func_error_string(ECDSA_str_functs[0].error) == NULL) { + ERR_load_strings(0, ECDSA_str_functs); + ERR_load_strings(0, ECDSA_str_reasons); + } +#endif +} diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_lib.c b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_lib.c new file mode 100644 index 0000000..8dc1dda --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_lib.c @@ -0,0 +1,354 @@ +/* crypto/ecdsa/ecs_lib.c */ +/* ==================================================================== + * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "ecs_locl.h" +#ifndef OPENSSL_NO_ENGINE +# include +#endif +#include +#include +#ifdef OPENSSL_FIPS +# include +#endif + +const char ECDSA_version[] = "ECDSA" OPENSSL_VERSION_PTEXT; + +static const ECDSA_METHOD *default_ECDSA_method = NULL; + +static void *ecdsa_data_new(void); +static void *ecdsa_data_dup(void *); +static void ecdsa_data_free(void *); + +void ECDSA_set_default_method(const ECDSA_METHOD *meth) +{ + default_ECDSA_method = meth; +} + +const ECDSA_METHOD *ECDSA_get_default_method(void) +{ + if (!default_ECDSA_method) { +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return FIPS_ecdsa_openssl(); + else + return ECDSA_OpenSSL(); +#else + default_ECDSA_method = ECDSA_OpenSSL(); +#endif + } + return default_ECDSA_method; +} + +int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth) +{ + ECDSA_DATA *ecdsa; + + ecdsa = ecdsa_check(eckey); + + if (ecdsa == NULL) + return 0; + +#ifndef OPENSSL_NO_ENGINE + if (ecdsa->engine) { + ENGINE_finish(ecdsa->engine); + ecdsa->engine = NULL; + } +#endif + ecdsa->meth = meth; + + return 1; +} + +static ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *engine) +{ + ECDSA_DATA *ret; + + ret = (ECDSA_DATA *)OPENSSL_malloc(sizeof(ECDSA_DATA)); + if (ret == NULL) { + ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE); + return (NULL); + } + + ret->init = NULL; + + ret->meth = ECDSA_get_default_method(); + ret->engine = engine; +#ifndef OPENSSL_NO_ENGINE + if (!ret->engine) + ret->engine = ENGINE_get_default_ECDSA(); + if (ret->engine) { + ret->meth = ENGINE_get_ECDSA(ret->engine); + if (!ret->meth) { + ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_ENGINE_LIB); + ENGINE_finish(ret->engine); + OPENSSL_free(ret); + return NULL; + } + } +#endif + + ret->flags = ret->meth->flags; + CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data); +#if 0 + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data); + OPENSSL_free(ret); + ret = NULL; + } +#endif + return (ret); +} + +static void *ecdsa_data_new(void) +{ + return (void *)ECDSA_DATA_new_method(NULL); +} + +static void *ecdsa_data_dup(void *data) +{ + ECDSA_DATA *r = (ECDSA_DATA *)data; + + /* XXX: dummy operation */ + if (r == NULL) + return NULL; + + return ecdsa_data_new(); +} + +static void ecdsa_data_free(void *data) +{ + ECDSA_DATA *r = (ECDSA_DATA *)data; + +#ifndef OPENSSL_NO_ENGINE + if (r->engine) + ENGINE_finish(r->engine); +#endif + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, r, &r->ex_data); + + OPENSSL_cleanse((void *)r, sizeof(ECDSA_DATA)); + + OPENSSL_free(r); +} + +ECDSA_DATA *ecdsa_check(EC_KEY *key) +{ + ECDSA_DATA *ecdsa_data; + + void *data = EC_KEY_get_key_method_data(key, ecdsa_data_dup, + ecdsa_data_free, ecdsa_data_free); + if (data == NULL) { + ecdsa_data = (ECDSA_DATA *)ecdsa_data_new(); + if (ecdsa_data == NULL) + return NULL; + data = EC_KEY_insert_key_method_data(key, (void *)ecdsa_data, + ecdsa_data_dup, ecdsa_data_free, + ecdsa_data_free); + if (data != NULL) { + /* + * Another thread raced us to install the key_method data and + * won. + */ + ecdsa_data_free(ecdsa_data); + ecdsa_data = (ECDSA_DATA *)data; + } + } else + ecdsa_data = (ECDSA_DATA *)data; +#ifdef OPENSSL_FIPS + if (FIPS_mode() && !(ecdsa_data->flags & ECDSA_FLAG_FIPS_METHOD) + && !(EC_KEY_get_flags(key) & EC_FLAG_NON_FIPS_ALLOW)) { + ECDSAerr(ECDSA_F_ECDSA_CHECK, ECDSA_R_NON_FIPS_METHOD); + return NULL; + } +#endif + + return ecdsa_data; +} + +int ECDSA_size(const EC_KEY *r) +{ + int ret, i; + ASN1_INTEGER bs; + BIGNUM *order = NULL; + unsigned char buf[4]; + const EC_GROUP *group; + + if (r == NULL) + return 0; + group = EC_KEY_get0_group(r); + if (group == NULL) + return 0; + + if ((order = BN_new()) == NULL) + return 0; + if (!EC_GROUP_get_order(group, order, NULL)) { + BN_clear_free(order); + return 0; + } + i = BN_num_bits(order); + bs.length = (i + 7) / 8; + bs.data = buf; + bs.type = V_ASN1_INTEGER; + /* If the top bit is set the asn1 encoding is 1 larger. */ + buf[0] = 0xff; + + i = i2d_ASN1_INTEGER(&bs, NULL); + i += i; /* r and s */ + ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE); + BN_clear_free(order); + return (ret); +} + +int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) +{ + return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDSA, argl, argp, + new_func, dup_func, free_func); +} + +int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg) +{ + ECDSA_DATA *ecdsa; + ecdsa = ecdsa_check(d); + if (ecdsa == NULL) + return 0; + return (CRYPTO_set_ex_data(&ecdsa->ex_data, idx, arg)); +} + +void *ECDSA_get_ex_data(EC_KEY *d, int idx) +{ + ECDSA_DATA *ecdsa; + ecdsa = ecdsa_check(d); + if (ecdsa == NULL) + return NULL; + return (CRYPTO_get_ex_data(&ecdsa->ex_data, idx)); +} + +ECDSA_METHOD *ECDSA_METHOD_new(const ECDSA_METHOD *ecdsa_meth) +{ + ECDSA_METHOD *ret; + + ret = OPENSSL_malloc(sizeof(ECDSA_METHOD)); + if (ret == NULL) { + ECDSAerr(ECDSA_F_ECDSA_METHOD_NEW, ERR_R_MALLOC_FAILURE); + return NULL; + } + + if (ecdsa_meth) + *ret = *ecdsa_meth; + else { + ret->ecdsa_sign_setup = 0; + ret->ecdsa_do_sign = 0; + ret->ecdsa_do_verify = 0; + ret->name = NULL; + ret->flags = 0; + } + ret->flags |= ECDSA_METHOD_FLAG_ALLOCATED; + return ret; +} + +void ECDSA_METHOD_set_sign(ECDSA_METHOD *ecdsa_method, + ECDSA_SIG *(*ecdsa_do_sign) (const unsigned char + *dgst, int dgst_len, + const BIGNUM *inv, + const BIGNUM *rp, + EC_KEY *eckey)) +{ + ecdsa_method->ecdsa_do_sign = ecdsa_do_sign; +} + +void ECDSA_METHOD_set_sign_setup(ECDSA_METHOD *ecdsa_method, + int (*ecdsa_sign_setup) (EC_KEY *eckey, + BN_CTX *ctx, + BIGNUM **kinv, + BIGNUM **r)) +{ + ecdsa_method->ecdsa_sign_setup = ecdsa_sign_setup; +} + +void ECDSA_METHOD_set_verify(ECDSA_METHOD *ecdsa_method, + int (*ecdsa_do_verify) (const unsigned char + *dgst, int dgst_len, + const ECDSA_SIG *sig, + EC_KEY *eckey)) +{ + ecdsa_method->ecdsa_do_verify = ecdsa_do_verify; +} + +void ECDSA_METHOD_set_flags(ECDSA_METHOD *ecdsa_method, int flags) +{ + ecdsa_method->flags = flags | ECDSA_METHOD_FLAG_ALLOCATED; +} + +void ECDSA_METHOD_set_name(ECDSA_METHOD *ecdsa_method, char *name) +{ + ecdsa_method->name = name; +} + +void ECDSA_METHOD_free(ECDSA_METHOD *ecdsa_method) +{ + if (ecdsa_method->flags & ECDSA_METHOD_FLAG_ALLOCATED) + OPENSSL_free(ecdsa_method); +} + +void ECDSA_METHOD_set_app_data(ECDSA_METHOD *ecdsa_method, void *app) +{ + ecdsa_method->app_data = app; +} + +void *ECDSA_METHOD_get_app_data(ECDSA_METHOD *ecdsa_method) +{ + return ecdsa_method->app_data; +} diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_locl.h b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_locl.h new file mode 100644 index 0000000..4e9bd44 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_locl.h @@ -0,0 +1,120 @@ +/* crypto/ecdsa/ecs_locl.h */ +/* + * Written by Nils Larsch for the OpenSSL project + */ +/* ==================================================================== + * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef HEADER_ECS_LOCL_H +# define HEADER_ECS_LOCL_H + +# include + +#ifdef __cplusplus +extern "C" { +#endif + +struct ecdsa_method { + const char *name; + ECDSA_SIG *(*ecdsa_do_sign) (const unsigned char *dgst, int dgst_len, + const BIGNUM *inv, const BIGNUM *rp, + EC_KEY *eckey); + int (*ecdsa_sign_setup) (EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, + BIGNUM **r); + int (*ecdsa_do_verify) (const unsigned char *dgst, int dgst_len, + const ECDSA_SIG *sig, EC_KEY *eckey); +# if 0 + int (*init) (EC_KEY *eckey); + int (*finish) (EC_KEY *eckey); +# endif + int flags; + void *app_data; +}; + +/* The ECDSA_METHOD was allocated and can be freed */ + +# define ECDSA_METHOD_FLAG_ALLOCATED 0x2 + +/* + * If this flag is set the ECDSA method is FIPS compliant and can be used in + * FIPS mode. This is set in the validated module method. If an application + * sets this flag in its own methods it is its responsibility to ensure the + * result is compliant. + */ + +# define ECDSA_FLAG_FIPS_METHOD 0x1 + +typedef struct ecdsa_data_st { + /* EC_KEY_METH_DATA part */ + int (*init) (EC_KEY *); + /* method (ECDSA) specific part */ + ENGINE *engine; + int flags; + const ECDSA_METHOD *meth; + CRYPTO_EX_DATA ex_data; +} ECDSA_DATA; + +/** ecdsa_check + * checks whether ECKEY->meth_data is a pointer to a ECDSA_DATA structure + * and if not it removes the old meth_data and creates a ECDSA_DATA structure. + * \param eckey pointer to a EC_KEY object + * \return pointer to a ECDSA_DATA structure + */ +ECDSA_DATA *ecdsa_check(EC_KEY *eckey); + +#ifdef __cplusplus +} +#endif + +#endif /* HEADER_ECS_LOCL_H */ diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_ossl.c b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_ossl.c new file mode 100644 index 0000000..dd76960 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_ossl.c @@ -0,0 +1,464 @@ +/* crypto/ecdsa/ecs_ossl.c */ +/* + * Written by Nils Larsch for the OpenSSL project + */ +/* ==================================================================== + * Copyright (c) 1998-2004 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ecs_locl.h" +#include +#include +#include + +static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dlen, + const BIGNUM *, const BIGNUM *, + EC_KEY *eckey); +static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, + BIGNUM **rp); +static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len, + const ECDSA_SIG *sig, EC_KEY *eckey); + +static ECDSA_METHOD openssl_ecdsa_meth = { + "OpenSSL ECDSA method", + ecdsa_do_sign, + ecdsa_sign_setup, + ecdsa_do_verify, +#if 0 + NULL, /* init */ + NULL, /* finish */ +#endif + 0, /* flags */ + NULL /* app_data */ +}; + +const ECDSA_METHOD *ECDSA_OpenSSL(void) +{ + return &openssl_ecdsa_meth; +} + +static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, + BIGNUM **rp) +{ + BN_CTX *ctx = NULL; + BIGNUM *k = NULL, *r = NULL, *order = NULL, *X = NULL; + EC_POINT *tmp_point = NULL; + const EC_GROUP *group; + int ret = 0; + + if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + + if (ctx_in == NULL) { + if ((ctx = BN_CTX_new()) == NULL) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE); + return 0; + } + } else + ctx = ctx_in; + + k = BN_new(); /* this value is later returned in *kinvp */ + r = BN_new(); /* this value is later returned in *rp */ + order = BN_new(); + X = BN_new(); + if (!k || !r || !order || !X) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE); + goto err; + } + if ((tmp_point = EC_POINT_new(group)) == NULL) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB); + goto err; + } + if (!EC_GROUP_get_order(group, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB); + goto err; + } + + do { + /* get random k */ + do + if (!BN_rand_range(k, order)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, + ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED); + goto err; + } + while (BN_is_zero(k)) ; + + /* + * We do not want timing information to leak the length of k, so we + * compute G*k using an equivalent scalar of fixed bit-length. + */ + + if (!BN_add(k, k, order)) + goto err; + if (BN_num_bits(k) <= BN_num_bits(order)) + if (!BN_add(k, k, order)) + goto err; + + /* compute r the x-coordinate of generator * k */ + if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB); + goto err; + } + if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == + NID_X9_62_prime_field) { + if (!EC_POINT_get_affine_coordinates_GFp + (group, tmp_point, X, NULL, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB); + goto err; + } + } +#ifndef OPENSSL_NO_EC2M + else { /* NID_X9_62_characteristic_two_field */ + + if (!EC_POINT_get_affine_coordinates_GF2m(group, + tmp_point, X, NULL, + ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB); + goto err; + } + } +#endif + if (!BN_nnmod(r, X, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB); + goto err; + } + } + while (BN_is_zero(r)); + + /* compute the inverse of k */ + if (EC_GROUP_get_mont_data(group) != NULL) { + /* + * We want inverse in constant time, therefore we utilize the fact + * order must be prime and use Fermats Little Theorem instead. + */ + if (!BN_set_word(X, 2)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB); + goto err; + } + if (!BN_mod_sub(X, order, X, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB); + goto err; + } + BN_set_flags(X, BN_FLG_CONSTTIME); + if (!BN_mod_exp_mont_consttime + (k, k, X, order, ctx, EC_GROUP_get_mont_data(group))) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB); + goto err; + } + } else { + if (!BN_mod_inverse(k, k, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB); + goto err; + } + } + + /* clear old values if necessary */ + if (*rp != NULL) + BN_clear_free(*rp); + if (*kinvp != NULL) + BN_clear_free(*kinvp); + /* save the pre-computed values */ + *rp = r; + *kinvp = k; + ret = 1; + err: + if (!ret) { + if (k != NULL) + BN_clear_free(k); + if (r != NULL) + BN_clear_free(r); + } + if (ctx_in == NULL) + BN_CTX_free(ctx); + if (order != NULL) + BN_free(order); + if (tmp_point != NULL) + EC_POINT_free(tmp_point); + if (X) + BN_clear_free(X); + return (ret); +} + +static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dgst_len, + const BIGNUM *in_kinv, const BIGNUM *in_r, + EC_KEY *eckey) +{ + int ok = 0, i; + BIGNUM *kinv = NULL, *s, *m = NULL, *tmp = NULL, *order = NULL; + const BIGNUM *ckinv; + BN_CTX *ctx = NULL; + const EC_GROUP *group; + ECDSA_SIG *ret; + ECDSA_DATA *ecdsa; + const BIGNUM *priv_key; + + ecdsa = ecdsa_check(eckey); + group = EC_KEY_get0_group(eckey); + priv_key = EC_KEY_get0_private_key(eckey); + + if (group == NULL || priv_key == NULL || ecdsa == NULL) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_PASSED_NULL_PARAMETER); + return NULL; + } + + ret = ECDSA_SIG_new(); + if (!ret) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE); + return NULL; + } + s = ret->s; + + if ((ctx = BN_CTX_new()) == NULL || (order = BN_new()) == NULL || + (tmp = BN_new()) == NULL || (m = BN_new()) == NULL) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!EC_GROUP_get_order(group, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_EC_LIB); + goto err; + } + i = BN_num_bits(order); + /* + * Need to truncate digest if it is too long: first truncate whole bytes. + */ + if (8 * dgst_len > i) + dgst_len = (i + 7) / 8; + if (!BN_bin2bn(dgst, dgst_len, m)) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB); + goto err; + } + /* If still too long truncate remaining bits with a shift */ + if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7))) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB); + goto err; + } + do { + if (in_kinv == NULL || in_r == NULL) { + if (!ECDSA_sign_setup(eckey, ctx, &kinv, &ret->r)) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_ECDSA_LIB); + goto err; + } + ckinv = kinv; + } else { + ckinv = in_kinv; + if (BN_copy(ret->r, in_r) == NULL) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (!BN_mod_mul(tmp, priv_key, ret->r, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB); + goto err; + } + if (!BN_mod_add_quick(s, tmp, m, order)) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB); + goto err; + } + if (!BN_mod_mul(s, s, ckinv, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB); + goto err; + } + if (BN_is_zero(s)) { + /* + * if kinv and r have been supplied by the caller don't to + * generate new kinv and r values + */ + if (in_kinv != NULL && in_r != NULL) { + ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, + ECDSA_R_NEED_NEW_SETUP_VALUES); + goto err; + } + } else + /* s != 0 => we have a valid signature */ + break; + } + while (1); + + ok = 1; + err: + if (!ok) { + ECDSA_SIG_free(ret); + ret = NULL; + } + if (ctx) + BN_CTX_free(ctx); + if (m) + BN_clear_free(m); + if (tmp) + BN_clear_free(tmp); + if (order) + BN_free(order); + if (kinv) + BN_clear_free(kinv); + return ret; +} + +static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len, + const ECDSA_SIG *sig, EC_KEY *eckey) +{ + int ret = -1, i; + BN_CTX *ctx; + BIGNUM *order, *u1, *u2, *m, *X; + EC_POINT *point = NULL; + const EC_GROUP *group; + const EC_POINT *pub_key; + + /* check input values */ + if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL || + (pub_key = EC_KEY_get0_public_key(eckey)) == NULL || sig == NULL) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_MISSING_PARAMETERS); + return -1; + } + + ctx = BN_CTX_new(); + if (!ctx) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE); + return -1; + } + BN_CTX_start(ctx); + order = BN_CTX_get(ctx); + u1 = BN_CTX_get(ctx); + u2 = BN_CTX_get(ctx); + m = BN_CTX_get(ctx); + X = BN_CTX_get(ctx); + if (!X) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + + if (!EC_GROUP_get_order(group, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB); + goto err; + } + + if (BN_is_zero(sig->r) || BN_is_negative(sig->r) || + BN_ucmp(sig->r, order) >= 0 || BN_is_zero(sig->s) || + BN_is_negative(sig->s) || BN_ucmp(sig->s, order) >= 0) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_BAD_SIGNATURE); + ret = 0; /* signature is invalid */ + goto err; + } + /* calculate tmp1 = inv(S) mod order */ + if (!BN_mod_inverse(u2, sig->s, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + /* digest -> m */ + i = BN_num_bits(order); + /* + * Need to truncate digest if it is too long: first truncate whole bytes. + */ + if (8 * dgst_len > i) + dgst_len = (i + 7) / 8; + if (!BN_bin2bn(dgst, dgst_len, m)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + /* If still too long truncate remaining bits with a shift */ + if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7))) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + /* u1 = m * tmp mod order */ + if (!BN_mod_mul(u1, m, u2, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + /* u2 = r * w mod q */ + if (!BN_mod_mul(u2, sig->r, u2, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + + if ((point = EC_POINT_new(group)) == NULL) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE); + goto err; + } + if (!EC_POINT_mul(group, point, u1, pub_key, u2, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB); + goto err; + } + if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == + NID_X9_62_prime_field) { + if (!EC_POINT_get_affine_coordinates_GFp(group, point, X, NULL, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB); + goto err; + } + } +#ifndef OPENSSL_NO_EC2M + else { /* NID_X9_62_characteristic_two_field */ + + if (!EC_POINT_get_affine_coordinates_GF2m(group, point, X, NULL, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB); + goto err; + } + } +#endif + if (!BN_nnmod(u1, X, order, ctx)) { + ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB); + goto err; + } + /* if the signature is correct u1 is equal to sig->r */ + ret = (BN_ucmp(u1, sig->r) == 0); + err: + BN_CTX_end(ctx); + BN_CTX_free(ctx); + if (point) + EC_POINT_free(point); + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_sign.c b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_sign.c new file mode 100644 index 0000000..28652d4 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_sign.c @@ -0,0 +1,106 @@ +/* crypto/ecdsa/ecdsa_sign.c */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ecs_locl.h" +#ifndef OPENSSL_NO_ENGINE +# include +#endif +#include + +ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey) +{ + return ECDSA_do_sign_ex(dgst, dlen, NULL, NULL, eckey); +} + +ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dlen, + const BIGNUM *kinv, const BIGNUM *rp, + EC_KEY *eckey) +{ + ECDSA_DATA *ecdsa = ecdsa_check(eckey); + if (ecdsa == NULL) + return NULL; + return ecdsa->meth->ecdsa_do_sign(dgst, dlen, kinv, rp, eckey); +} + +int ECDSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char + *sig, unsigned int *siglen, EC_KEY *eckey) +{ + return ECDSA_sign_ex(type, dgst, dlen, sig, siglen, NULL, NULL, eckey); +} + +int ECDSA_sign_ex(int type, const unsigned char *dgst, int dlen, unsigned char + *sig, unsigned int *siglen, const BIGNUM *kinv, + const BIGNUM *r, EC_KEY *eckey) +{ + ECDSA_SIG *s; + RAND_seed(dgst, dlen); + s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey); + if (s == NULL) { + *siglen = 0; + return 0; + } + *siglen = i2d_ECDSA_SIG(s, &sig); + ECDSA_SIG_free(s); + return 1; +} + +int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, + BIGNUM **rp) +{ + ECDSA_DATA *ecdsa = ecdsa_check(eckey); + if (ecdsa == NULL) + return 0; + return ecdsa->meth->ecdsa_sign_setup(eckey, ctx_in, kinvp, rp); +} diff --git a/Cryptlib/OpenSSL/crypto/ecdsa/ecs_vrf.c b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_vrf.c new file mode 100644 index 0000000..e909aeb --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/ecdsa/ecs_vrf.c @@ -0,0 +1,112 @@ +/* crypto/ecdsa/ecdsa_vrf.c */ +/* + * Written by Nils Larsch for the OpenSSL project + */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ecs_locl.h" +#include +#ifndef OPENSSL_NO_ENGINE +# include +#endif + +/*- + * returns + * 1: correct signature + * 0: incorrect signature + * -1: error + */ +int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, + const ECDSA_SIG *sig, EC_KEY *eckey) +{ + ECDSA_DATA *ecdsa = ecdsa_check(eckey); + if (ecdsa == NULL) + return 0; + return ecdsa->meth->ecdsa_do_verify(dgst, dgst_len, sig, eckey); +} + +/*- + * returns + * 1: correct signature + * 0: incorrect signature + * -1: error + */ +int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len, + const unsigned char *sigbuf, int sig_len, EC_KEY *eckey) +{ + ECDSA_SIG *s; + const unsigned char *p = sigbuf; + unsigned char *der = NULL; + int derlen = -1; + int ret = -1; + + s = ECDSA_SIG_new(); + if (s == NULL) + return (ret); + if (d2i_ECDSA_SIG(&s, &p, sig_len) == NULL) + goto err; + /* Ensure signature uses DER and doesn't have trailing garbage */ + derlen = i2d_ECDSA_SIG(s, &der); + if (derlen != sig_len || memcmp(sigbuf, der, derlen)) + goto err; + ret = ECDSA_do_verify(dgst, dgst_len, s, eckey); + err: + if (derlen > 0) { + OPENSSL_cleanse(der, derlen); + OPENSSL_free(der); + } + ECDSA_SIG_free(s); + return (ret); +} diff --git a/Cryptlib/OpenSSL/crypto/err/err.c b/Cryptlib/OpenSSL/crypto/err/err.c index e225145..aac5956 100644 --- a/Cryptlib/OpenSSL/crypto/err/err.c +++ b/Cryptlib/OpenSSL/crypto/err/err.c @@ -155,6 +155,7 @@ static ERR_STRING_DATA ERR_str_libraries[] = { {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"}, {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"}, {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"}, + {ERR_PACK(ERR_LIB_SM2, 0, 0), "SM2 routines"}, {0, NULL}, }; diff --git a/Cryptlib/OpenSSL/crypto/evp/c_alld.c b/Cryptlib/OpenSSL/crypto/evp/c_alld.c index fdbe3ee..6cad383 100644 --- a/Cryptlib/OpenSSL/crypto/evp/c_alld.c +++ b/Cryptlib/OpenSSL/crypto/evp/c_alld.c @@ -111,4 +111,7 @@ void OpenSSL_add_all_digests(void) #ifndef OPENSSL_NO_WHIRLPOOL EVP_add_digest(EVP_whirlpool()); #endif +#ifndef OPENSSL_NO_SM3 + EVP_add_digest(EVP_sm3()); +#endif } diff --git a/Cryptlib/OpenSSL/crypto/evp/digest.c b/Cryptlib/OpenSSL/crypto/evp/digest.c index 4db1796..ffc03ef 100644 --- a/Cryptlib/OpenSSL/crypto/evp/digest.c +++ b/Cryptlib/OpenSSL/crypto/evp/digest.c @@ -122,6 +122,48 @@ # include "evp_locl.h" #endif +/* This call frees resources associated with the context */ +int EVP_MD_CTX_reset(EVP_MD_CTX *ctx) +{ + if (ctx == NULL) + return 1; + + /* + * Don't assume ctx->md_data was cleaned in EVP_Digest_Final, because + * sometimes only copies of the context are ever finalised. + */ + if (ctx->digest && ctx->digest->cleanup + && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED)) + ctx->digest->cleanup(ctx); + if (ctx->digest && ctx->digest->ctx_size && ctx->md_data + && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) { + OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size); + } + /* + * pctx should be freed by the user of EVP_MD_CTX + * if EVP_MD_CTX_FLAG_KEEP_PKEY_CTX is set + */ + if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX)) + EVP_PKEY_CTX_free(ctx->pctx); +#ifndef OPENSSL_NO_ENGINE + ENGINE_finish(ctx->engine); +#endif + OPENSSL_cleanse(ctx, sizeof(*ctx)); + + return 1; +} + +EVP_MD_CTX *EVP_MD_CTX_new(void) +{ + return OPENSSL_zalloc(sizeof(EVP_MD_CTX)); +} + +void EVP_MD_CTX_free(EVP_MD_CTX *ctx) +{ + EVP_MD_CTX_reset(ctx); + OPENSSL_free(ctx); +} + void EVP_MD_CTX_init(EVP_MD_CTX *ctx) { memset(ctx, '\0', sizeof *ctx); @@ -139,7 +181,7 @@ EVP_MD_CTX *EVP_MD_CTX_create(void) int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) { - EVP_MD_CTX_init(ctx); + EVP_MD_CTX_reset(ctx); return EVP_DigestInit_ex(ctx, type, NULL); } @@ -264,7 +306,7 @@ int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) { int ret; ret = EVP_DigestFinal_ex(ctx, md, size); - EVP_MD_CTX_cleanup(ctx); + EVP_MD_CTX_reset(ctx); return ret; } @@ -291,7 +333,7 @@ int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) { - EVP_MD_CTX_init(out); + EVP_MD_CTX_reset(out); return EVP_MD_CTX_copy_ex(out, in); } @@ -315,9 +357,19 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) EVP_MD_CTX_set_flags(out, EVP_MD_CTX_FLAG_REUSE); } else tmp_buf = NULL; - EVP_MD_CTX_cleanup(out); + EVP_MD_CTX_reset(out); memcpy(out, in, sizeof *out); + /* copied EVP_MD_CTX should free the copied EVP_PKEY_CTX */ + EVP_MD_CTX_clear_flags(out, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX); + + /* Null these variables, since they are getting fixed up + * properly below. Anything else may cause a memleak and/or + * double free if any of the memory allocations below fail + */ + out->md_data = NULL; + out->pctx = NULL; + if (in->md_data && out->digest->ctx_size) { if (tmp_buf) out->md_data = tmp_buf; @@ -336,7 +388,7 @@ int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) if (in->pctx) { out->pctx = EVP_PKEY_CTX_dup(in->pctx); if (!out->pctx) { - EVP_MD_CTX_cleanup(out); + EVP_MD_CTX_reset(out); return 0; } } diff --git a/Cryptlib/OpenSSL/crypto/evp/evp_lib.c b/Cryptlib/OpenSSL/crypto/evp/evp_lib.c index 7e0bab9..5945494 100644 --- a/Cryptlib/OpenSSL/crypto/evp/evp_lib.c +++ b/Cryptlib/OpenSSL/crypto/evp/evp_lib.c @@ -389,3 +389,8 @@ int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags) { return (ctx->flags & flags); } + +void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx) +{ + return ctx->md_data; +} diff --git a/Cryptlib/OpenSSL/crypto/evp/evp_locl.h b/Cryptlib/OpenSSL/crypto/evp/evp_locl.h index 2bb709a..1d179ef 100644 --- a/Cryptlib/OpenSSL/crypto/evp/evp_locl.h +++ b/Cryptlib/OpenSSL/crypto/evp/evp_locl.h @@ -324,6 +324,16 @@ struct evp_pkey_method_st { int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen); int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2); int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value); + int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen, + const unsigned char *tbs, size_t tbslen); + int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig, + size_t siglen, const unsigned char *tbs, + size_t tbslen); + int (*check) (EVP_PKEY *pkey); + int (*public_check) (EVP_PKEY *pkey); + int (*param_check) (EVP_PKEY *pkey); + + int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); } /* EVP_PKEY_METHOD */ ; void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx); diff --git a/Cryptlib/OpenSSL/crypto/evp/m_sigver.c b/Cryptlib/OpenSSL/crypto/evp/m_sigver.c index 4492d20..771b659 100644 --- a/Cryptlib/OpenSSL/crypto/evp/m_sigver.c +++ b/Cryptlib/OpenSSL/crypto/evp/m_sigver.c @@ -110,6 +110,13 @@ static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx, return 1; if (!EVP_DigestInit_ex(ctx, type, e)) return 0; + /* + * This indicates the current algorithm requires + * special treatment before hashing the tbs-message. + */ + if (ctx->pctx->pmeth->digest_custom != NULL) + return ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx); + return 1; } @@ -201,3 +208,13 @@ int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig, return r; return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen); } + +int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret, + size_t siglen, const unsigned char *tbs, size_t tbslen) +{ + if (ctx->pctx->pmeth->digestverify != NULL) + return ctx->pctx->pmeth->digestverify(ctx, sigret, siglen, tbs, tbslen); + if (EVP_DigestVerifyUpdate(ctx, tbs, tbslen) <= 0) + return -1; + return EVP_DigestVerifyFinal(ctx, sigret, siglen); +} diff --git a/Cryptlib/OpenSSL/crypto/evp/p_lib.c b/Cryptlib/OpenSSL/crypto/evp/p_lib.c index 545d04f..c95d038 100644 --- a/Cryptlib/OpenSSL/crypto/evp/p_lib.c +++ b/Cryptlib/OpenSSL/crypto/evp/p_lib.c @@ -259,6 +259,24 @@ int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) return pkey_set_type(pkey, EVP_PKEY_NONE, str, len); } +int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type) +{ + if (pkey->type == type) { + return 1; /* it already is that type */ + } + + /* + * The application is requesting to alias this to a different pkey type, + * but not one that resolves to the base type. + */ + if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) { + return 0; + } + + pkey->type = type; + return 1; +} + int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) { if (pkey == NULL || !EVP_PKEY_set_type(pkey, type)) @@ -272,6 +290,24 @@ void *EVP_PKEY_get0(EVP_PKEY *pkey) return pkey->pkey.ptr; } +# ifndef OPENSSL_NO_SM2 +int EVP_PKEY_is_sm2(EVP_PKEY *pkey) +{ + EC_KEY *eckey; + const EC_GROUP *group; + if (pkey == NULL) { + return 0; + } + if (EVP_PKEY_id(pkey) == EVP_PKEY_EC + && (eckey = EVP_PKEY_get1_EC_KEY(pkey)) != NULL + && (group = EC_KEY_get0_group(eckey)) != NULL + && EC_GROUP_get_curve_name(group) == NID_sm2) { + return 1; + } + return EVP_PKEY_id(pkey) == EVP_PKEY_SM2; +} +# endif + #ifndef OPENSSL_NO_RSA int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) { @@ -322,6 +358,14 @@ int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) return ret; } +EC_KEY *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey) +{ + if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { + return NULL; + } + return pkey->pkey.ec; +} + EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) { if (pkey->type != EVP_PKEY_EC) { diff --git a/Cryptlib/OpenSSL/crypto/evp/pmeth_lib.c b/Cryptlib/OpenSSL/crypto/evp/pmeth_lib.c index d066862..8e52917 100644 --- a/Cryptlib/OpenSSL/crypto/evp/pmeth_lib.c +++ b/Cryptlib/OpenSSL/crypto/evp/pmeth_lib.c @@ -75,7 +75,7 @@ STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL; extern const EVP_PKEY_METHOD rsa_pkey_meth, dh_pkey_meth, dsa_pkey_meth; extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth, cmac_pkey_meth; -extern const EVP_PKEY_METHOD dhx_pkey_meth; +extern const EVP_PKEY_METHOD dhx_pkey_meth, sm2_pkey_meth; static const EVP_PKEY_METHOD *standard_methods[] = { #ifndef OPENSSL_NO_RSA @@ -95,7 +95,10 @@ static const EVP_PKEY_METHOD *standard_methods[] = { &cmac_pkey_meth, #endif #ifndef OPENSSL_NO_DH - &dhx_pkey_meth + &dhx_pkey_meth, +#endif +#ifndef OPENSSL_NO_SM2 + &sm2_pkey_meth, #endif }; @@ -135,9 +138,9 @@ static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id) EVP_PKEY_CTX *ret; const EVP_PKEY_METHOD *pmeth; if (id == -1) { - if (!pkey || !pkey->ameth) + if (!pkey) return NULL; - id = pkey->ameth->pkey_id; + id = pkey->type; } #ifndef OPENSSL_NO_ENGINE if (pkey && pkey->engine) @@ -365,6 +368,10 @@ int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) return -1; +/* Skip the operation checks since this is called in a very early stage */ + if (ctx->pmeth->digest_custom != NULL) + goto doit; + if (ctx->operation == EVP_PKEY_OP_UNDEFINED) { EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET); return -1; @@ -375,6 +382,7 @@ int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, return -1; } +doit: ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2); if (ret == -2) diff --git a/Cryptlib/OpenSSL/crypto/mem.c b/Cryptlib/OpenSSL/crypto/mem.c index 06c3960..ae5a165 100644 --- a/Cryptlib/OpenSSL/crypto/mem.c +++ b/Cryptlib/OpenSSL/crypto/mem.c @@ -456,3 +456,21 @@ long CRYPTO_get_mem_debug_options(void) return get_debug_options_func(); return 0; } + +void *CRYPTO_zalloc(int num, const char *file, int line) +{ + void *ret = CRYPTO_malloc(num, file, line); + + if (ret != NULL) + memset(ret, 0, num); + return ret; +} + +void CRYPTO_clear_free(void *str, int num, const char *file, int line) +{ + if (str == NULL) + return; + if (num) + OPENSSL_cleanse(str, num); + CRYPTO_free(str); +} diff --git a/Cryptlib/OpenSSL/crypto/o_str.c b/Cryptlib/OpenSSL/crypto/o_str.c index 7e61cde..c46c631 100644 --- a/Cryptlib/OpenSSL/crypto/o_str.c +++ b/Cryptlib/OpenSSL/crypto/o_str.c @@ -60,6 +60,8 @@ #include #include #include "o_str.h" +#include "openssl/crypto.h" +#include "openssl/err.h" #if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \ !defined(OPENSSL_SYSNAME_WIN32) && !defined(OPENSSL_SYSNAME_WINCE) && \ @@ -114,3 +116,88 @@ int OPENSSL_memcmp(const void *v1, const void *v2, size_t n) return ret; } + +int OPENSSL_hexchar2int(unsigned char c) +{ +#ifdef CHARSET_EBCDIC + c = os_toebcdic[c]; +#endif + + switch (c) { + case '0': + return 0; + case '1': + return 1; + case '2': + return 2; + case '3': + return 3; + case '4': + return 4; + case '5': + return 5; + case '6': + return 6; + case '7': + return 7; + case '8': + return 8; + case '9': + return 9; + case 'a': case 'A': + return 0x0A; + case 'b': case 'B': + return 0x0B; + case 'c': case 'C': + return 0x0C; + case 'd': case 'D': + return 0x0D; + case 'e': case 'E': + return 0x0E; + case 'f': case 'F': + return 0x0F; + } + return -1; +} + +/* + * Give a string of hex digits convert to a buffer + */ +unsigned char *OPENSSL_hexstr2buf(const char *str, long *len) +{ + unsigned char *hexbuf, *q; + unsigned char ch, cl; + int chi, cli; + const unsigned char *p; + size_t s; + + s = strlen(str); + if ((hexbuf = OPENSSL_malloc(s >> 1)) == NULL) { + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, ERR_R_MALLOC_FAILURE); + return NULL; + } + for (p = (const unsigned char *)str, q = hexbuf; *p; ) { + ch = *p++; + if (ch == ':') + continue; + cl = *p++; + if (!cl) { + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, + CRYPTO_R_ODD_NUMBER_OF_DIGITS); + OPENSSL_free(hexbuf); + return NULL; + } + cli = OPENSSL_hexchar2int(cl); + chi = OPENSSL_hexchar2int(ch); + if (cli < 0 || chi < 0) { + OPENSSL_free(hexbuf); + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, CRYPTO_R_ILLEGAL_HEX_DIGIT); + return NULL; + } + *q++ = (unsigned char)((chi << 4) | cli); + } + + if (len) + *len = q - hexbuf; + return hexbuf; +} diff --git a/Cryptlib/OpenSSL/crypto/objects/obj_dat.h b/Cryptlib/OpenSSL/crypto/objects/obj_dat.h index b7e3cf2..30ea261 100644 --- a/Cryptlib/OpenSSL/crypto/objects/obj_dat.h +++ b/Cryptlib/OpenSSL/crypto/objects/obj_dat.h @@ -62,12 +62,12 @@ * [including the GNU Public Licence.] */ -#define NUM_NID 958 -#define NUM_SN 951 -#define NUM_LN 951 -#define NUM_OBJ 890 +#define NUM_NID 965 +#define NUM_SN 958 +#define NUM_LN 958 +#define NUM_OBJ 897 -static const unsigned char lvalues[6255]={ +static const unsigned char lvalues[6301]={ 0x2A,0x86,0x48,0x86,0xF7,0x0D, /* [ 0] OBJ_rsadsi */ 0x2A,0x86,0x48,0x86,0xF7,0x0D,0x01, /* [ 6] OBJ_pkcs */ 0x2A,0x86,0x48,0x86,0xF7,0x0D,0x02,0x02, /* [ 13] OBJ_md2 */ @@ -952,6 +952,13 @@ static const unsigned char lvalues[6255]={ 0x2B,0x06,0x01,0x04,0x01,0x82,0x37,0x3C,0x02,0x01,0x01,/* [6221] OBJ_jurisdictionLocalityName */ 0x2B,0x06,0x01,0x04,0x01,0x82,0x37,0x3C,0x02,0x01,0x02,/* [6232] OBJ_jurisdictionStateOrProvinceName */ 0x2B,0x06,0x01,0x04,0x01,0x82,0x37,0x3C,0x02,0x01,0x03,/* [6243] OBJ_jurisdictionCountryName */ +0x2A,0x81,0x1C, /* [6254] OBJ_ISO_CN */ +0x2A,0x81,0x1C,0xCF,0x55, /* [6257] OBJ_oscca */ +0x2A,0x81,0x1C,0xCF,0x55,0x01, /* [6262] OBJ_sm_scheme */ +0x2A,0x81,0x1C,0xCF,0x55,0x01,0x82,0x2D, /* [6268] OBJ_sm2 */ +0x2A,0x81,0x1C,0xCF,0x55,0x01,0x83,0x11, /* [6276] OBJ_sm3 */ +0x2A,0x81,0x1C,0xCF,0x55,0x01,0x83,0x78, /* [6284] OBJ_sm3WithRSAEncryption */ +0x2A,0x81,0x1C,0xCF,0x55,0x01,0x83,0x75, /* [6292] OBJ_SM2_with_SM3 */ }; static const ASN1_OBJECT nid_objs[NUM_NID]={ @@ -2514,6 +2521,14 @@ static const ASN1_OBJECT nid_objs[NUM_NID]={ NID_jurisdictionStateOrProvinceName,11,&(lvalues[6232]),0}, {"jurisdictionC","jurisdictionCountryName", NID_jurisdictionCountryName,11,&(lvalues[6243]),0}, +{"ISO-CN","ISO CN Member Body",NID_ISO_CN,3,&(lvalues[6254]),0}, +{"oscca","oscca",NID_oscca,5,&(lvalues[6257]),0}, +{"sm-scheme","sm-scheme",NID_sm_scheme,6,&(lvalues[6262]),0}, +{"SM2","sm2",NID_sm2,8,&(lvalues[6268]),0}, +{"SM3","sm3",NID_sm3,8,&(lvalues[6276]),0}, +{"RSA-SM3","sm3WithRSAEncryption",NID_sm3WithRSAEncryption,8, + &(lvalues[6284]),0}, +{"SM2-SM3","SM2-with-SM3",NID_SM2_with_SM3,8,&(lvalues[6292]),0}, }; static const unsigned int sn_objs[NUM_SN]={ @@ -2615,6 +2630,7 @@ static const unsigned int sn_objs[NUM_SN]={ 36, /* "IDEA-ECB" */ 46, /* "IDEA-OFB" */ 181, /* "ISO" */ +958, /* "ISO-CN" */ 183, /* "ISO-US" */ 645, /* "ITU-T" */ 646, /* "JOINT-ISO-ITU-T" */ @@ -2685,6 +2701,10 @@ static const unsigned int sn_objs[NUM_SN]={ 668, /* "RSA-SHA256" */ 669, /* "RSA-SHA384" */ 670, /* "RSA-SHA512" */ +963, /* "RSA-SM3" */ +961, /* "SM2" */ +964, /* "SM2-SM3" */ +962, /* "SM3" */ 919, /* "RSAES-OAEP" */ 912, /* "RSASSA-PSS" */ 777, /* "SEED-CBC" */ @@ -3176,6 +3196,7 @@ static const unsigned int sn_objs[NUM_SN]={ 77, /* "nsSslServerName" */ 681, /* "onBasis" */ 491, /* "organizationalStatus" */ +959, /* "oscca" */ 475, /* "otherMailbox" */ 876, /* "owner" */ 489, /* "pagerTelephoneNumber" */ @@ -3422,6 +3443,7 @@ static const unsigned int sn_objs[NUM_SN]={ 52, /* "signingTime" */ 454, /* "simpleSecurityObject" */ 496, /* "singleLevelQuality" */ +960, /* "sm-scheme" */ 387, /* "snmpv2" */ 660, /* "street" */ 85, /* "subjectAltName" */ @@ -3519,6 +3541,7 @@ static const unsigned int ln_objs[NUM_LN]={ 294, /* "IPSec End System" */ 295, /* "IPSec Tunnel" */ 296, /* "IPSec User" */ +958, /* "ISO CN Member Body" */ 182, /* "ISO Member Body" */ 183, /* "ISO US Member Body" */ 667, /* "Independent" */ @@ -3573,6 +3596,7 @@ static const unsigned int ln_objs[NUM_LN]={ 2, /* "RSA Data Security, Inc. PKCS" */ 188, /* "S/MIME" */ 167, /* "S/MIME Capabilities" */ +964, /* "SM2-with-SM3" */ 387, /* "SNMPv2" */ 512, /* "Secure Electronic Transactions" */ 386, /* "Security" */ @@ -4105,6 +4129,7 @@ static const unsigned int ln_objs[NUM_LN]={ 17, /* "organizationName" */ 491, /* "organizationalStatus" */ 18, /* "organizationalUnitName" */ +959, /* "oscca" */ 475, /* "otherMailbox" */ 876, /* "owner" */ 935, /* "pSpecified" */ @@ -4379,6 +4404,10 @@ static const unsigned int ln_objs[NUM_LN]={ 52, /* "signingTime" */ 454, /* "simpleSecurityObject" */ 496, /* "singleLevelQuality" */ +960, /* "sm-scheme" */ +961, /* "sm2" */ +962, /* "sm3" */ +963, /* "sm3WithRSAEncryption" */ 16, /* "stateOrProvinceName" */ 660, /* "streetAddress" */ 498, /* "subtreeMaximumQuality" */ @@ -4444,6 +4473,7 @@ static const unsigned int obj_objs[NUM_OBJ]={ 512, /* OBJ_id_set 2 23 42 */ 678, /* OBJ_wap 2 23 43 */ 435, /* OBJ_pss 0 9 2342 */ +958, /* OBJ_ISO_CN 1 2 156 */ 183, /* OBJ_ISO_US 1 2 840 */ 381, /* OBJ_iana 1 3 6 1 */ 677, /* OBJ_certicom_arc 1 3 132 */ @@ -4659,6 +4689,7 @@ static const unsigned int obj_objs[NUM_OBJ]={ 637, /* OBJ_set_brand_Diners 2 23 42 8 30 */ 638, /* OBJ_set_brand_AmericanExpress 2 23 42 8 34 */ 639, /* OBJ_set_brand_JCB 2 23 42 8 35 */ +959, /* OBJ_oscca 1 2 156 10197 */ 805, /* OBJ_cryptopro 1 2 643 2 2 */ 806, /* OBJ_cryptocom 1 2 643 2 9 */ 184, /* OBJ_X9_57 1 2 840 10040 */ @@ -4733,6 +4764,7 @@ static const unsigned int obj_objs[NUM_OBJ]={ 745, /* OBJ_wap_wsg_idm_ecid_wtls12 2 23 43 1 4 12 */ 804, /* OBJ_whirlpool 1 0 10118 3 0 55 */ 124, /* OBJ_rle_compression 1 1 1 1 666 1 */ +960, /* OBJ_sm_scheme 1 2 156 10197 1 */ 773, /* OBJ_kisa 1 2 410 200004 */ 807, /* OBJ_id_GostR3411_94_with_GostR3410_2001 1 2 643 2 2 3 */ 808, /* OBJ_id_GostR3411_94_with_GostR3410_94 1 2 643 2 2 4 */ @@ -4836,6 +4868,10 @@ static const unsigned int obj_objs[NUM_OBJ]={ 768, /* OBJ_camellia_256_ofb128 0 3 4401 5 3 1 9 43 */ 759, /* OBJ_camellia_256_cfb128 0 3 4401 5 3 1 9 44 */ 437, /* OBJ_pilot 0 9 2342 19200300 100 */ +961, /* OBJ_sm2 1 2 156 10197 1 301 */ +962, /* OBJ_sm3 1 2 156 10197 1 401 */ +964, /* OBJ_SM2_with_SM3 1 2 156 10197 1 501 */ +963, /* OBJ_sm3WithRSAEncryption 1 2 156 10197 1 504 */ 776, /* OBJ_seed_ecb 1 2 410 200004 1 3 */ 777, /* OBJ_seed_cbc 1 2 410 200004 1 4 */ 779, /* OBJ_seed_cfb128 1 2 410 200004 1 5 */ diff --git a/Cryptlib/OpenSSL/crypto/objects/obj_xref.h b/Cryptlib/OpenSSL/crypto/objects/obj_xref.h index e453e99..cf08a14 100644 --- a/Cryptlib/OpenSSL/crypto/objects/obj_xref.h +++ b/Cryptlib/OpenSSL/crypto/objects/obj_xref.h @@ -56,6 +56,7 @@ static const nid_triple sigoid_srt[] = { NID_dh_cofactor_kdf}, {NID_dhSinglePass_cofactorDH_sha512kdf_scheme, NID_sha512, NID_dh_cofactor_kdf}, + {NID_SM2_with_SM3, NID_sm3, NID_sm2}, }; static const nid_triple *const sigoid_srt_xref[] = { @@ -96,4 +97,5 @@ static const nid_triple *const sigoid_srt_xref[] = { &sigoid_srt[26], &sigoid_srt[27], &sigoid_srt[28], + &sigoid_srt[40], }; diff --git a/Cryptlib/OpenSSL/crypto/pkcs7/pk7_doit.c b/Cryptlib/OpenSSL/crypto/pkcs7/pk7_doit.c index e6a44f4..2acd0c2 100644 --- a/Cryptlib/OpenSSL/crypto/pkcs7/pk7_doit.c +++ b/Cryptlib/OpenSSL/crypto/pkcs7/pk7_doit.c @@ -1032,10 +1032,10 @@ int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si, ASN1_OCTET_STRING *os; EVP_MD_CTX mdc_tmp, *mdc; int ret = 0, i; - int md_type; + int md_type, is_sm2 = 0; STACK_OF(X509_ATTRIBUTE) *sk; BIO *btmp; - EVP_PKEY *pkey; + EVP_PKEY *pkey = NULL; EVP_MD_CTX_init(&mdc_tmp); @@ -1070,6 +1070,18 @@ int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si, btmp = BIO_next(btmp); } +#ifndef OPENSSL_NO_SM2 + pkey = X509_get_pubkey(x509); + if (!pkey) + goto err; + + if (EVP_PKEY_is_sm2(pkey)) { + is_sm2 = 1; + if (!EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2)) + goto err; + } +#endif + /* * mdc is the digest ctx that we want, unless there are attributes, in * which case the digest is the signed attributes @@ -1110,7 +1122,12 @@ int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si, goto err; } - if (!EVP_VerifyInit_ex(&mdc_tmp, EVP_get_digestbynid(md_type), NULL)) + ret = is_sm2 ? EVP_DigestVerifyInit(&mdc_tmp, NULL, EVP_get_digestbynid(md_type), NULL, pkey) : + EVP_VerifyInit_ex(&mdc_tmp, EVP_get_digestbynid(md_type), NULL); + if (!ret) + goto err; + + if (!EVP_DigestVerifyInit(&mdc_tmp, NULL, EVP_get_digestbynid(md_type), NULL, pkey)) goto err; alen = ASN1_item_i2d((ASN1_VALUE *)sk, &abuf, @@ -1127,14 +1144,8 @@ int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si, } os = si->enc_digest; - pkey = X509_get_pubkey(x509); - if (!pkey) { - ret = -1; - goto err; - } - - i = EVP_VerifyFinal(&mdc_tmp, os->data, os->length, pkey); - EVP_PKEY_free(pkey); + i = is_sm2 ? EVP_DigestVerifyFinal(&mdc_tmp, os->data, os->length) : + EVP_VerifyFinal(&mdc_tmp, os->data, os->length, pkey); if (i <= 0) { PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_SIGNATURE_FAILURE); ret = -1; @@ -1142,6 +1153,7 @@ int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si, } else ret = 1; err: + EVP_PKEY_free(pkey); EVP_MD_CTX_cleanup(&mdc_tmp); return (ret); } diff --git a/Cryptlib/OpenSSL/crypto/sm2/sm2_err.c b/Cryptlib/OpenSSL/crypto/sm2/sm2_err.c new file mode 100644 index 0000000..6e06f6a --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/sm2/sm2_err.c @@ -0,0 +1,71 @@ +/* + * Generated by util/mkerr.pl DO NOT EDIT + * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include +#include + +#ifndef OPENSSL_NO_ERR + +static const ERR_STRING_DATA SM2_str_functs[] = { + {ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_COPY, 0), "pkey_sm2_copy"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_CTRL, 0), "pkey_sm2_ctrl"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_CTRL_STR, 0), "pkey_sm2_ctrl_str"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_DIGEST_CUSTOM, 0), + "pkey_sm2_digest_custom"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_INIT, 0), "pkey_sm2_init"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_SIGN, 0), "pkey_sm2_sign"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_COMPUTE_KEY, 0), "SM2_compute_key"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_COMPUTE_MSG_HASH, 0), + "sm2_compute_msg_hash"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_COMPUTE_USERID_DIGEST, 0), + "sm2_compute_userid_digest"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_COMPUTE_Z_DIGEST, 0), + "sm2_compute_z_digest"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_DECRYPT, 0), "sm2_decrypt"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_ENCRYPT, 0), "sm2_encrypt"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_PLAINTEXT_SIZE, 0), "sm2_plaintext_size"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_SIGN, 0), "sm2_sign"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_SIG_GEN, 0), "sm2_sig_gen"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_SIG_VERIFY, 0), "sm2_sig_verify"}, + {ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_VERIFY, 0), "sm2_verify"}, + {0, NULL} +}; + +static const ERR_STRING_DATA SM2_str_reasons[] = { + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_ASN1_ERROR), "asn1 error"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_BAD_SIGNATURE), "bad signature"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_BUFFER_TOO_SMALL), "buffer too small"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_DIST_ID_TOO_LARGE), "dist id too large"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_ID_NOT_SET), "id not set"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_ID_TOO_LARGE), "id too large"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_CURVE), "invalid curve"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_DIGEST), "invalid digest"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_DIGEST_TYPE), + "invalid digest type"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_ENCODING), "invalid encoding"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_FIELD), "invalid field"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_NO_PARAMETERS_SET), "no parameters set"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_NO_PRIVATE_VALUE), "no private value"}, + {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_USER_ID_TOO_LARGE), "user id too large"}, + {0, NULL} +}; + +#endif + +int ERR_load_SM2_strings(void) +{ +#ifndef OPENSSL_NO_ERR + if (ERR_func_error_string(SM2_str_functs[0].error) == NULL) { + ERR_load_strings_const(SM2_str_functs); + ERR_load_strings_const(SM2_str_reasons); + } +#endif + return 1; +} diff --git a/Cryptlib/OpenSSL/crypto/sm2/sm2_pmeth.c b/Cryptlib/OpenSSL/crypto/sm2/sm2_pmeth.c new file mode 100644 index 0000000..b0d9519 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/sm2/sm2_pmeth.c @@ -0,0 +1,292 @@ +/* + * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "crypto/cryptlib.h" +#include +#include +#include +#include +#include "crypto/evp/evp_locl.h" +#include +#include + +/* EC pkey context structure */ + +typedef struct { + /* Key and paramgen group */ + EC_GROUP *gen_group; + /* message digest */ + const EVP_MD *md; + /* Distinguishing Identifier, ISO/IEC 15946-3 */ + uint8_t *id; + size_t id_len; + /* id_set indicates if the 'id' field is set (1) or not (0) */ + int id_set; +} SM2_PKEY_CTX; + +static int pkey_sm2_init(EVP_PKEY_CTX *ctx) +{ + SM2_PKEY_CTX *smctx; + + if ((smctx = OPENSSL_zalloc(sizeof(*smctx))) == NULL) { + SM2err(SM2_F_PKEY_SM2_INIT, ERR_R_MALLOC_FAILURE); + return 0; + } + + ctx->data = smctx; + return 1; +} + +static void pkey_sm2_cleanup(EVP_PKEY_CTX *ctx) +{ + SM2_PKEY_CTX *smctx = ctx->data; + + if (smctx != NULL) { + EC_GROUP_free(smctx->gen_group); + OPENSSL_free(smctx->id); + OPENSSL_free(smctx); + ctx->data = NULL; + } +} + +static int pkey_sm2_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) +{ + SM2_PKEY_CTX *dctx, *sctx; + + if (!pkey_sm2_init(dst)) + return 0; + sctx = src->data; + dctx = dst->data; + if (sctx->gen_group != NULL) { + dctx->gen_group = EC_GROUP_dup(sctx->gen_group); + if (dctx->gen_group == NULL) { + pkey_sm2_cleanup(dst); + return 0; + } + } + if (sctx->id != NULL) { + dctx->id = OPENSSL_malloc(sctx->id_len); + if (dctx->id == NULL) { + SM2err(SM2_F_PKEY_SM2_COPY, ERR_R_MALLOC_FAILURE); + pkey_sm2_cleanup(dst); + return 0; + } + memcpy(dctx->id, sctx->id, sctx->id_len); + } + dctx->id_len = sctx->id_len; + dctx->id_set = sctx->id_set; + dctx->md = sctx->md; + + return 1; +} + +static int pkey_sm2_verify(EVP_PKEY_CTX *ctx, + const unsigned char *sig, size_t siglen, + const unsigned char *tbs, size_t tbslen) +{ + EC_KEY *ec = ctx->pkey->pkey.ec; + + return sm2_verify(tbs, tbslen, sig, siglen, ec); +} + +static int pkey_sm2_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) +{ + SM2_PKEY_CTX *smctx = ctx->data; + EC_GROUP *group; + uint8_t *tmp_id; + + switch (type) { + case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID: + group = EC_GROUP_new_by_curve_name(p1); + if (group == NULL) { + SM2err(SM2_F_PKEY_SM2_CTRL, SM2_R_INVALID_CURVE); + return 0; + } + EC_GROUP_free(smctx->gen_group); + smctx->gen_group = group; + return 1; + + case EVP_PKEY_CTRL_EC_PARAM_ENC: + if (smctx->gen_group == NULL) { + SM2err(SM2_F_PKEY_SM2_CTRL, SM2_R_NO_PARAMETERS_SET); + return 0; + } + EC_GROUP_set_asn1_flag(smctx->gen_group, p1); + return 1; + + case EVP_PKEY_CTRL_MD: + smctx->md = p2; + return 1; + + case EVP_PKEY_CTRL_GET_MD: + *(const EVP_MD **)p2 = smctx->md; + return 1; + + case EVP_PKEY_CTRL_SET1_ID: + if (p1 > 0) { + tmp_id = OPENSSL_malloc(p1); + if (tmp_id == NULL) { + SM2err(SM2_F_PKEY_SM2_CTRL, ERR_R_MALLOC_FAILURE); + return 0; + } + memcpy(tmp_id, p2, p1); + OPENSSL_free(smctx->id); + smctx->id = tmp_id; + } else { + /* set null-ID */ + OPENSSL_free(smctx->id); + smctx->id = NULL; + } + smctx->id_len = (size_t)p1; + smctx->id_set = 1; + return 1; + + case EVP_PKEY_CTRL_GET1_ID: + memcpy(p2, smctx->id, smctx->id_len); + return 1; + + case EVP_PKEY_CTRL_GET1_ID_LEN: + *(size_t *)p2 = smctx->id_len; + return 1; + + case EVP_PKEY_CTRL_PKCS7_SIGN: + case EVP_PKEY_CTRL_DIGESTINIT: + /* nothing to be inited, this is to suppress the error... */ + return 1; + + default: + return -2; + } +} + +static int pkey_sm2_ctrl_str(EVP_PKEY_CTX *ctx, + const char *type, const char *value) +{ + uint8_t *hex_id; + long hex_len = 0; + int ret = 0; + + if (strcmp(type, "ec_paramgen_curve") == 0) { + int nid = NID_undef; + + if (((nid = EC_curve_nist2nid(value)) == NID_undef) + && ((nid = OBJ_sn2nid(value)) == NID_undef) + && ((nid = OBJ_ln2nid(value)) == NID_undef)) { + SM2err(SM2_F_PKEY_SM2_CTRL_STR, SM2_R_INVALID_CURVE); + return 0; + } + return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid); + } else if (strcmp(type, "ec_param_enc") == 0) { + int param_enc; + + if (strcmp(value, "explicit") == 0) + param_enc = 0; + else if (strcmp(value, "named_curve") == 0) + param_enc = OPENSSL_EC_NAMED_CURVE; + else + return -2; + return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc); + } else if (strcmp(type, "sm2_id") == 0) { + return pkey_sm2_ctrl(ctx, EVP_PKEY_CTRL_SET1_ID, + (int)strlen(value), (void *)value); + } else if (strcmp(type, "sm2_hex_id") == 0) { + /* + * TODO(3.0): reconsider the name "sm2_hex_id", OR change + * OSSL_PARAM_construct_from_text() / OSSL_PARAM_allocate_from_text() + * to handle infix "_hex_" + */ + hex_id = OPENSSL_hexstr2buf((const char *)value, &hex_len); + if (hex_id == NULL) { + SM2err(SM2_F_PKEY_SM2_CTRL_STR, ERR_R_PASSED_INVALID_ARGUMENT); + return 0; + } + ret = pkey_sm2_ctrl(ctx, EVP_PKEY_CTRL_SET1_ID, (int)hex_len, + (void *)hex_id); + OPENSSL_free(hex_id); + return ret; + } + + return -2; +} + +static int pkey_sm2_digest_custom(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx) +{ + uint8_t z[EVP_MAX_MD_SIZE]; + SM2_PKEY_CTX *smctx = ctx->data; + EC_KEY *ec = ctx->pkey->pkey.ec; + const EVP_MD *md = EVP_MD_CTX_md(mctx); + int mdlen = EVP_MD_size(md); + +#ifndef OPENSSL_NO_SM2 + if (!smctx->id_set) + (void)pkey_sm2_ctrl(ctx, EVP_PKEY_CTRL_SET1_ID, SM2_DEFAULT_USERID_LEN + , (void *)SM2_DEFAULT_USERID); +#endif + if (!smctx->id_set) { + /* + * An ID value must be set. The specifications are not clear whether a + * NULL is allowed. We only allow it if set explicitly for maximum + * flexibility. + */ + SM2err(SM2_F_PKEY_SM2_DIGEST_CUSTOM, SM2_R_ID_NOT_SET); + return 0; + } + + if (mdlen < 0) { + SM2err(SM2_F_PKEY_SM2_DIGEST_CUSTOM, SM2_R_INVALID_DIGEST); + return 0; + } + + /* get hashed prefix 'z' of tbs message */ + if (!sm2_compute_z_digest(z, md, smctx->id, smctx->id_len, ec)) + return 0; + + return EVP_DigestUpdate(mctx, z, (size_t)mdlen); +} + +const EVP_PKEY_METHOD sm2_pkey_meth = { + EVP_PKEY_SM2, + 0, + pkey_sm2_init, + pkey_sm2_copy, + pkey_sm2_cleanup, + + 0, + 0, + + 0, + 0, + + 0, + 0, // pkey_sm2_sign, + + 0, + pkey_sm2_verify, + + 0, 0, + + 0, 0, 0, 0, + + 0, + 0, // pkey_sm2_encrypt, + + 0, + 0, // pkey_sm2_decrypt, + + 0, + 0, + pkey_sm2_ctrl, + pkey_sm2_ctrl_str, + + 0, 0, + + 0, 0, 0, + + pkey_sm2_digest_custom +}; diff --git a/Cryptlib/OpenSSL/crypto/sm2/sm2_sign.c b/Cryptlib/OpenSSL/crypto/sm2/sm2_sign.c new file mode 100644 index 0000000..d206f33 --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/sm2/sm2_sign.c @@ -0,0 +1,325 @@ +/* + * Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017 Ribose Inc. All Rights Reserved. + * Ported from Ribose contributions from Botan. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include +#include +#include /* ec_group_do_inverse_ord() */ +#include +#include +#include +#include +#include +#include + +int sm2_compute_z_digest(uint8_t *out, + const EVP_MD *digest, + const uint8_t *id, + const size_t id_len, + const EC_KEY *key) +{ + int rc = 0; + const EC_GROUP *group = EC_KEY_get0_group(key); + BN_CTX *ctx = NULL; + EVP_MD_CTX *hash = NULL; + BIGNUM *p = NULL; + BIGNUM *a = NULL; + BIGNUM *b = NULL; + BIGNUM *xG = NULL; + BIGNUM *yG = NULL; + BIGNUM *xA = NULL; + BIGNUM *yA = NULL; + int p_bytes = 0; + uint8_t *buf = NULL; + uint16_t entl = 0; + uint8_t e_byte = 0; + + hash = EVP_MD_CTX_new(); + ctx = BN_CTX_new(); + if (hash == NULL || ctx == NULL) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_MALLOC_FAILURE); + goto done; + } + + p = BN_CTX_get(ctx); + a = BN_CTX_get(ctx); + b = BN_CTX_get(ctx); + xG = BN_CTX_get(ctx); + yG = BN_CTX_get(ctx); + xA = BN_CTX_get(ctx); + yA = BN_CTX_get(ctx); + + if (yA == NULL) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_MALLOC_FAILURE); + goto done; + } + + if (!EVP_DigestInit(hash, digest)) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_EVP_LIB); + goto done; + } + + /* Z = h(ENTL || ID || a || b || xG || yG || xA || yA) */ + + if (id_len >= (UINT16_MAX / 8)) { + /* too large */ + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, SM2_R_ID_TOO_LARGE); + goto done; + } + + entl = (uint16_t)(8 * id_len); + + e_byte = entl >> 8; + if (!EVP_DigestUpdate(hash, &e_byte, 1)) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_EVP_LIB); + goto done; + } + e_byte = entl & 0xFF; + if (!EVP_DigestUpdate(hash, &e_byte, 1)) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_EVP_LIB); + goto done; + } + + if (id_len > 0 && !EVP_DigestUpdate(hash, id, id_len)) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_EVP_LIB); + goto done; + } + + if (!EC_GROUP_get_curve_GFp(group, p, a, b, ctx)) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_EC_LIB); + goto done; + } + + p_bytes = BN_num_bytes(p); + buf = OPENSSL_zalloc(p_bytes); + if (buf == NULL) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_MALLOC_FAILURE); + goto done; + } + + if (BN_bn2bin(a, buf) < 0 + || !EVP_DigestUpdate(hash, buf, p_bytes) + || BN_bn2bin(b, buf) < 0 + || !EVP_DigestUpdate(hash, buf, p_bytes) + || !EC_POINT_get_affine_coordinates_GFp(group, + EC_GROUP_get0_generator(group), + xG, yG, ctx) + || BN_bn2bin(xG, buf) < 0 + || !EVP_DigestUpdate(hash, buf, p_bytes) + || BN_bn2bin(yG, buf) < 0 + || !EVP_DigestUpdate(hash, buf, p_bytes) + || !EC_POINT_get_affine_coordinates_GFp(group, + EC_KEY_get0_public_key(key), + xA, yA, ctx) + || BN_bn2bin(xA, buf) < 0 + || !EVP_DigestUpdate(hash, buf, p_bytes) + || BN_bn2bin(yA, buf) < 0 + || !EVP_DigestUpdate(hash, buf, p_bytes) + || !EVP_DigestFinal(hash, out, NULL)) { + SM2err(SM2_F_SM2_COMPUTE_Z_DIGEST, ERR_R_INTERNAL_ERROR); + goto done; + } + + rc = 1; + + done: + OPENSSL_free(buf); + BN_CTX_free(ctx); + EVP_MD_CTX_free(hash); + return rc; +} + +static BIGNUM *sm2_compute_msg_hash(const EVP_MD *digest, + const EC_KEY *key, + const uint8_t *id, + const size_t id_len, + const uint8_t *msg, size_t msg_len) +{ + EVP_MD_CTX *hash = EVP_MD_CTX_new(); + const int md_size = EVP_MD_size(digest); + uint8_t *z = NULL; + BIGNUM *e = NULL; + + if (md_size < 0) { + SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, SM2_R_INVALID_DIGEST); + goto done; + } + + z = OPENSSL_zalloc(md_size); + if (hash == NULL || z == NULL) { + SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_MALLOC_FAILURE); + goto done; + } + + if (!sm2_compute_z_digest(z, digest, id, id_len, key)) { + /* SM2err already called */ + goto done; + } + + if (!EVP_DigestInit(hash, digest) + || !EVP_DigestUpdate(hash, z, md_size) + || !EVP_DigestUpdate(hash, msg, msg_len) + /* reuse z buffer to hold H(Z || M) */ + || !EVP_DigestFinal(hash, z, NULL)) { + SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_EVP_LIB); + goto done; + } + + e = BN_bin2bn(z, md_size, NULL); + if (e == NULL) + SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_INTERNAL_ERROR); + + done: + OPENSSL_free(z); + EVP_MD_CTX_free(hash); + return e; +} + +static int sm2_sig_verify(const EC_KEY *key, const ECDSA_SIG *sig, + const BIGNUM *e) +{ + int ret = 0; + const EC_GROUP *group = EC_KEY_get0_group(key); + const BIGNUM *order = EC_GROUP_get0_order(group); + BN_CTX *ctx = NULL; + EC_POINT *pt = NULL; + BIGNUM *t = NULL; + BIGNUM *x1 = NULL; + const BIGNUM *r = NULL; + const BIGNUM *s = NULL; + + ctx = BN_CTX_new(); + pt = EC_POINT_new(group); + if (ctx == NULL || pt == NULL) { + SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_MALLOC_FAILURE); + goto done; + } + + BN_CTX_start(ctx); + t = BN_CTX_get(ctx); + x1 = BN_CTX_get(ctx); + if (x1 == NULL) { + SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_MALLOC_FAILURE); + goto done; + } + + /* + * B1: verify whether r' in [1,n-1], verification failed if not + * B2: verify whether s' in [1,n-1], verification failed if not + * B3: set M'~=ZA || M' + * B4: calculate e'=Hv(M'~) + * B5: calculate t = (r' + s') modn, verification failed if t=0 + * B6: calculate the point (x1', y1')=[s']G + [t]PA + * B7: calculate R=(e'+x1') modn, verification pass if yes, otherwise failed + */ + + ECDSA_SIG_get0(sig, &r, &s); + + if (BN_cmp(r, BN_value_one()) < 0 + || BN_cmp(s, BN_value_one()) < 0 + || BN_cmp(order, r) <= 0 + || BN_cmp(order, s) <= 0) { + SM2err(SM2_F_SM2_SIG_VERIFY, SM2_R_BAD_SIGNATURE); + goto done; + } + + if (!BN_mod_add(t, r, s, order, ctx)) { + SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_BN_LIB); + goto done; + } + + if (BN_is_zero(t)) { + SM2err(SM2_F_SM2_SIG_VERIFY, SM2_R_BAD_SIGNATURE); + goto done; + } + + if (!EC_POINT_mul(group, pt, s, EC_KEY_get0_public_key(key), t, ctx) + || !EC_POINT_get_affine_coordinates_GFp(group, pt, x1, NULL, ctx)) { + SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_EC_LIB); + goto done; + } + + if (!BN_mod_add(t, e, x1, order, ctx)) { + SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_BN_LIB); + goto done; + } + + if (BN_cmp(r, t) == 0) + ret = 1; + + done: + EC_POINT_free(pt); + BN_CTX_free(ctx); + return ret; +} + +int sm2_do_verify(const EC_KEY *key, + const EVP_MD *digest, + const ECDSA_SIG *sig, + const uint8_t *id, + const size_t id_len, + const uint8_t *msg, size_t msg_len) +{ + BIGNUM *e = NULL; + int ret = 0; + + e = sm2_compute_msg_hash(digest, key, id, id_len, msg, msg_len); + if (e == NULL) { + /* SM2err already called */ + goto done; + } + + ret = sm2_sig_verify(key, sig, e); + + done: + BN_free(e); + return ret; +} + +int sm2_verify(const unsigned char *dgst, int dgstlen, + const unsigned char *sig, int sig_len, EC_KEY *eckey) +{ + ECDSA_SIG *s = NULL; + BIGNUM *e = NULL; + const unsigned char *p = sig; + unsigned char *der = NULL; + int derlen = -1; + int ret = -1; + + s = ECDSA_SIG_new(); + if (s == NULL) { + SM2err(SM2_F_SM2_VERIFY, ERR_R_MALLOC_FAILURE); + goto done; + } + if (d2i_ECDSA_SIG(&s, &p, sig_len) == NULL) { + SM2err(SM2_F_SM2_VERIFY, SM2_R_INVALID_ENCODING); + goto done; + } + /* Ensure signature uses DER and doesn't have trailing garbage */ + derlen = i2d_ECDSA_SIG(s, &der); + if (derlen != sig_len || memcmp(sig, der, derlen) != 0) { + SM2err(SM2_F_SM2_VERIFY, SM2_R_INVALID_ENCODING); + goto done; + } + + e = BN_bin2bn(dgst, dgstlen, NULL); + if (e == NULL) { + SM2err(SM2_F_SM2_VERIFY, ERR_R_BN_LIB); + goto done; + } + + ret = sm2_sig_verify(eckey, s, e); + + done: + OPENSSL_free(der); + BN_free(e); + ECDSA_SIG_free(s); + return ret; +} diff --git a/Cryptlib/OpenSSL/crypto/sm3/m_sm3.c b/Cryptlib/OpenSSL/crypto/sm3/m_sm3.c new file mode 100644 index 0000000..d429b8c --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/sm3/m_sm3.c @@ -0,0 +1,52 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017 Ribose Inc. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "cryptlib.h" + +#ifndef OPENSSL_NO_SM3 +# include +# include + +static int init(EVP_MD_CTX *ctx) +{ + return sm3_init(EVP_MD_CTX_md_data(ctx)); +} + +static int update(EVP_MD_CTX *ctx, const void *data, size_t count) +{ + return sm3_update(EVP_MD_CTX_md_data(ctx), data, count); +} + +static int final(EVP_MD_CTX *ctx, unsigned char *md) +{ + return sm3_final(md, EVP_MD_CTX_md_data(ctx)); +} + +static const EVP_MD sm3_md = { + NID_sm3, + NID_sm3WithRSAEncryption, + SM3_DIGEST_LENGTH, + 0, + init, + update, + final, + NULL, + NULL, + EVP_PKEY_NULL_method, + SM3_CBLOCK, + sizeof(EVP_MD *) + sizeof(SM3_CTX), +}; + +const EVP_MD *EVP_sm3(void) +{ + return &sm3_md; +} + +#endif diff --git a/Cryptlib/OpenSSL/crypto/sm3/sm3.c b/Cryptlib/OpenSSL/crypto/sm3/sm3.c new file mode 100644 index 0000000..d78292b --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/sm3/sm3.c @@ -0,0 +1,196 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017 Ribose Inc. All Rights Reserved. + * Ported from Ribose contributions from Botan. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include +#include "sm3_local.h" + +int sm3_init(SM3_CTX *c) +{ + memset(c, 0, sizeof(*c)); + c->A = SM3_A; + c->B = SM3_B; + c->C = SM3_C; + c->D = SM3_D; + c->E = SM3_E; + c->F = SM3_F; + c->G = SM3_G; + c->H = SM3_H; + return 1; +} + +void sm3_block_data_order(SM3_CTX *ctx, const void *p, size_t num) +{ + const unsigned char *data = p; + register unsigned MD32_REG_T A, B, C, D, E, F, G, H; + + unsigned MD32_REG_T W00, W01, W02, W03, W04, W05, W06, W07, + W08, W09, W10, W11, W12, W13, W14, W15; + + for (; num--;) { + + A = ctx->A; + B = ctx->B; + C = ctx->C; + D = ctx->D; + E = ctx->E; + F = ctx->F; + G = ctx->G; + H = ctx->H; + + /* + * We have to load all message bytes immediately since SM3 reads + * them slightly out of order. + */ + (void)HOST_c2l(data, W00); + (void)HOST_c2l(data, W01); + (void)HOST_c2l(data, W02); + (void)HOST_c2l(data, W03); + (void)HOST_c2l(data, W04); + (void)HOST_c2l(data, W05); + (void)HOST_c2l(data, W06); + (void)HOST_c2l(data, W07); + (void)HOST_c2l(data, W08); + (void)HOST_c2l(data, W09); + (void)HOST_c2l(data, W10); + (void)HOST_c2l(data, W11); + (void)HOST_c2l(data, W12); + (void)HOST_c2l(data, W13); + (void)HOST_c2l(data, W14); + (void)HOST_c2l(data, W15); + + R1(A, B, C, D, E, F, G, H, 0x79CC4519, W00, W00 ^ W04); + W00 = EXPAND(W00, W07, W13, W03, W10); + R1(D, A, B, C, H, E, F, G, 0xF3988A32, W01, W01 ^ W05); + W01 = EXPAND(W01, W08, W14, W04, W11); + R1(C, D, A, B, G, H, E, F, 0xE7311465, W02, W02 ^ W06); + W02 = EXPAND(W02, W09, W15, W05, W12); + R1(B, C, D, A, F, G, H, E, 0xCE6228CB, W03, W03 ^ W07); + W03 = EXPAND(W03, W10, W00, W06, W13); + R1(A, B, C, D, E, F, G, H, 0x9CC45197, W04, W04 ^ W08); + W04 = EXPAND(W04, W11, W01, W07, W14); + R1(D, A, B, C, H, E, F, G, 0x3988A32F, W05, W05 ^ W09); + W05 = EXPAND(W05, W12, W02, W08, W15); + R1(C, D, A, B, G, H, E, F, 0x7311465E, W06, W06 ^ W10); + W06 = EXPAND(W06, W13, W03, W09, W00); + R1(B, C, D, A, F, G, H, E, 0xE6228CBC, W07, W07 ^ W11); + W07 = EXPAND(W07, W14, W04, W10, W01); + R1(A, B, C, D, E, F, G, H, 0xCC451979, W08, W08 ^ W12); + W08 = EXPAND(W08, W15, W05, W11, W02); + R1(D, A, B, C, H, E, F, G, 0x988A32F3, W09, W09 ^ W13); + W09 = EXPAND(W09, W00, W06, W12, W03); + R1(C, D, A, B, G, H, E, F, 0x311465E7, W10, W10 ^ W14); + W10 = EXPAND(W10, W01, W07, W13, W04); + R1(B, C, D, A, F, G, H, E, 0x6228CBCE, W11, W11 ^ W15); + W11 = EXPAND(W11, W02, W08, W14, W05); + R1(A, B, C, D, E, F, G, H, 0xC451979C, W12, W12 ^ W00); + W12 = EXPAND(W12, W03, W09, W15, W06); + R1(D, A, B, C, H, E, F, G, 0x88A32F39, W13, W13 ^ W01); + W13 = EXPAND(W13, W04, W10, W00, W07); + R1(C, D, A, B, G, H, E, F, 0x11465E73, W14, W14 ^ W02); + W14 = EXPAND(W14, W05, W11, W01, W08); + R1(B, C, D, A, F, G, H, E, 0x228CBCE6, W15, W15 ^ W03); + W15 = EXPAND(W15, W06, W12, W02, W09); + R2(A, B, C, D, E, F, G, H, 0x9D8A7A87, W00, W00 ^ W04); + W00 = EXPAND(W00, W07, W13, W03, W10); + R2(D, A, B, C, H, E, F, G, 0x3B14F50F, W01, W01 ^ W05); + W01 = EXPAND(W01, W08, W14, W04, W11); + R2(C, D, A, B, G, H, E, F, 0x7629EA1E, W02, W02 ^ W06); + W02 = EXPAND(W02, W09, W15, W05, W12); + R2(B, C, D, A, F, G, H, E, 0xEC53D43C, W03, W03 ^ W07); + W03 = EXPAND(W03, W10, W00, W06, W13); + R2(A, B, C, D, E, F, G, H, 0xD8A7A879, W04, W04 ^ W08); + W04 = EXPAND(W04, W11, W01, W07, W14); + R2(D, A, B, C, H, E, F, G, 0xB14F50F3, W05, W05 ^ W09); + W05 = EXPAND(W05, W12, W02, W08, W15); + R2(C, D, A, B, G, H, E, F, 0x629EA1E7, W06, W06 ^ W10); + W06 = EXPAND(W06, W13, W03, W09, W00); + R2(B, C, D, A, F, G, H, E, 0xC53D43CE, W07, W07 ^ W11); + W07 = EXPAND(W07, W14, W04, W10, W01); + R2(A, B, C, D, E, F, G, H, 0x8A7A879D, W08, W08 ^ W12); + W08 = EXPAND(W08, W15, W05, W11, W02); + R2(D, A, B, C, H, E, F, G, 0x14F50F3B, W09, W09 ^ W13); + W09 = EXPAND(W09, W00, W06, W12, W03); + R2(C, D, A, B, G, H, E, F, 0x29EA1E76, W10, W10 ^ W14); + W10 = EXPAND(W10, W01, W07, W13, W04); + R2(B, C, D, A, F, G, H, E, 0x53D43CEC, W11, W11 ^ W15); + W11 = EXPAND(W11, W02, W08, W14, W05); + R2(A, B, C, D, E, F, G, H, 0xA7A879D8, W12, W12 ^ W00); + W12 = EXPAND(W12, W03, W09, W15, W06); + R2(D, A, B, C, H, E, F, G, 0x4F50F3B1, W13, W13 ^ W01); + W13 = EXPAND(W13, W04, W10, W00, W07); + R2(C, D, A, B, G, H, E, F, 0x9EA1E762, W14, W14 ^ W02); + W14 = EXPAND(W14, W05, W11, W01, W08); + R2(B, C, D, A, F, G, H, E, 0x3D43CEC5, W15, W15 ^ W03); + W15 = EXPAND(W15, W06, W12, W02, W09); + R2(A, B, C, D, E, F, G, H, 0x7A879D8A, W00, W00 ^ W04); + W00 = EXPAND(W00, W07, W13, W03, W10); + R2(D, A, B, C, H, E, F, G, 0xF50F3B14, W01, W01 ^ W05); + W01 = EXPAND(W01, W08, W14, W04, W11); + R2(C, D, A, B, G, H, E, F, 0xEA1E7629, W02, W02 ^ W06); + W02 = EXPAND(W02, W09, W15, W05, W12); + R2(B, C, D, A, F, G, H, E, 0xD43CEC53, W03, W03 ^ W07); + W03 = EXPAND(W03, W10, W00, W06, W13); + R2(A, B, C, D, E, F, G, H, 0xA879D8A7, W04, W04 ^ W08); + W04 = EXPAND(W04, W11, W01, W07, W14); + R2(D, A, B, C, H, E, F, G, 0x50F3B14F, W05, W05 ^ W09); + W05 = EXPAND(W05, W12, W02, W08, W15); + R2(C, D, A, B, G, H, E, F, 0xA1E7629E, W06, W06 ^ W10); + W06 = EXPAND(W06, W13, W03, W09, W00); + R2(B, C, D, A, F, G, H, E, 0x43CEC53D, W07, W07 ^ W11); + W07 = EXPAND(W07, W14, W04, W10, W01); + R2(A, B, C, D, E, F, G, H, 0x879D8A7A, W08, W08 ^ W12); + W08 = EXPAND(W08, W15, W05, W11, W02); + R2(D, A, B, C, H, E, F, G, 0x0F3B14F5, W09, W09 ^ W13); + W09 = EXPAND(W09, W00, W06, W12, W03); + R2(C, D, A, B, G, H, E, F, 0x1E7629EA, W10, W10 ^ W14); + W10 = EXPAND(W10, W01, W07, W13, W04); + R2(B, C, D, A, F, G, H, E, 0x3CEC53D4, W11, W11 ^ W15); + W11 = EXPAND(W11, W02, W08, W14, W05); + R2(A, B, C, D, E, F, G, H, 0x79D8A7A8, W12, W12 ^ W00); + W12 = EXPAND(W12, W03, W09, W15, W06); + R2(D, A, B, C, H, E, F, G, 0xF3B14F50, W13, W13 ^ W01); + W13 = EXPAND(W13, W04, W10, W00, W07); + R2(C, D, A, B, G, H, E, F, 0xE7629EA1, W14, W14 ^ W02); + W14 = EXPAND(W14, W05, W11, W01, W08); + R2(B, C, D, A, F, G, H, E, 0xCEC53D43, W15, W15 ^ W03); + W15 = EXPAND(W15, W06, W12, W02, W09); + R2(A, B, C, D, E, F, G, H, 0x9D8A7A87, W00, W00 ^ W04); + W00 = EXPAND(W00, W07, W13, W03, W10); + R2(D, A, B, C, H, E, F, G, 0x3B14F50F, W01, W01 ^ W05); + W01 = EXPAND(W01, W08, W14, W04, W11); + R2(C, D, A, B, G, H, E, F, 0x7629EA1E, W02, W02 ^ W06); + W02 = EXPAND(W02, W09, W15, W05, W12); + R2(B, C, D, A, F, G, H, E, 0xEC53D43C, W03, W03 ^ W07); + W03 = EXPAND(W03, W10, W00, W06, W13); + R2(A, B, C, D, E, F, G, H, 0xD8A7A879, W04, W04 ^ W08); + R2(D, A, B, C, H, E, F, G, 0xB14F50F3, W05, W05 ^ W09); + R2(C, D, A, B, G, H, E, F, 0x629EA1E7, W06, W06 ^ W10); + R2(B, C, D, A, F, G, H, E, 0xC53D43CE, W07, W07 ^ W11); + R2(A, B, C, D, E, F, G, H, 0x8A7A879D, W08, W08 ^ W12); + R2(D, A, B, C, H, E, F, G, 0x14F50F3B, W09, W09 ^ W13); + R2(C, D, A, B, G, H, E, F, 0x29EA1E76, W10, W10 ^ W14); + R2(B, C, D, A, F, G, H, E, 0x53D43CEC, W11, W11 ^ W15); + R2(A, B, C, D, E, F, G, H, 0xA7A879D8, W12, W12 ^ W00); + R2(D, A, B, C, H, E, F, G, 0x4F50F3B1, W13, W13 ^ W01); + R2(C, D, A, B, G, H, E, F, 0x9EA1E762, W14, W14 ^ W02); + R2(B, C, D, A, F, G, H, E, 0x3D43CEC5, W15, W15 ^ W03); + + ctx->A ^= A; + ctx->B ^= B; + ctx->C ^= C; + ctx->D ^= D; + ctx->E ^= E; + ctx->F ^= F; + ctx->G ^= G; + ctx->H ^= H; + } +} + diff --git a/Cryptlib/OpenSSL/crypto/sm3/sm3_local.h b/Cryptlib/OpenSSL/crypto/sm3/sm3_local.h new file mode 100644 index 0000000..dfb7bfb --- /dev/null +++ b/Cryptlib/OpenSSL/crypto/sm3/sm3_local.h @@ -0,0 +1,79 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2017 Ribose Inc. All Rights Reserved. + * Ported from Ribose contributions from Botan. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include +#include + +#define DATA_ORDER_IS_BIG_ENDIAN + +#define HASH_LONG SM3_WORD +#define HASH_CTX SM3_CTX +#define HASH_CBLOCK SM3_CBLOCK +#define HASH_UPDATE sm3_update +#define HASH_TRANSFORM sm3_transform +#define HASH_FINAL sm3_final +#define HASH_MAKE_STRING(c, s) \ + do { \ + unsigned long ll; \ + ll=(c)->A; (void)HOST_l2c(ll, (s)); \ + ll=(c)->B; (void)HOST_l2c(ll, (s)); \ + ll=(c)->C; (void)HOST_l2c(ll, (s)); \ + ll=(c)->D; (void)HOST_l2c(ll, (s)); \ + ll=(c)->E; (void)HOST_l2c(ll, (s)); \ + ll=(c)->F; (void)HOST_l2c(ll, (s)); \ + ll=(c)->G; (void)HOST_l2c(ll, (s)); \ + ll=(c)->H; (void)HOST_l2c(ll, (s)); \ + } while (0) +#define HASH_BLOCK_DATA_ORDER sm3_block_data_order + +void sm3_transform(SM3_CTX *c, const unsigned char *data); + +#include "crypto/md32_common.h" + +#define P0(X) (X ^ ROTATE(X, 9) ^ ROTATE(X, 17)) +#define P1(X) (X ^ ROTATE(X, 15) ^ ROTATE(X, 23)) + +#define FF0(X,Y,Z) (X ^ Y ^ Z) +#define GG0(X,Y,Z) (X ^ Y ^ Z) + +#define FF1(X,Y,Z) ((X & Y) | ((X | Y) & Z)) +#define GG1(X,Y,Z) ((Z ^ (X & (Y ^ Z)))) + +#define EXPAND(W0,W7,W13,W3,W10) \ + (P1(W0 ^ W7 ^ ROTATE(W13, 15)) ^ ROTATE(W3, 7) ^ W10) + +#define RND(A, B, C, D, E, F, G, H, TJ, Wi, Wj, FF, GG) \ + do { \ + const SM3_WORD A12 = ROTATE(A, 12); \ + const SM3_WORD A12_SM = A12 + E + TJ; \ + const SM3_WORD SS1 = ROTATE(A12_SM, 7); \ + const SM3_WORD TT1 = FF(A, B, C) + D + (SS1 ^ A12) + (Wj); \ + const SM3_WORD TT2 = GG(E, F, G) + H + SS1 + Wi; \ + B = ROTATE(B, 9); \ + D = TT1; \ + F = ROTATE(F, 19); \ + H = P0(TT2); \ + } while(0) + +#define R1(A,B,C,D,E,F,G,H,TJ,Wi,Wj) \ + RND(A,B,C,D,E,F,G,H,TJ,Wi,Wj,FF0,GG0) + +#define R2(A,B,C,D,E,F,G,H,TJ,Wi,Wj) \ + RND(A,B,C,D,E,F,G,H,TJ,Wi,Wj,FF1,GG1) + +#define SM3_A 0x7380166fUL +#define SM3_B 0x4914b2b9UL +#define SM3_C 0x172442d7UL +#define SM3_D 0xda8a0600UL +#define SM3_E 0xa96f30bcUL +#define SM3_F 0x163138aaUL +#define SM3_G 0xe38dee4dUL +#define SM3_H 0xb0fb0e4eUL diff --git a/Cryptlib/OpenSSL/crypto/x509/x_all.c b/Cryptlib/OpenSSL/crypto/x509/x_all.c index 0f26c54..0228582 100644 --- a/Cryptlib/OpenSSL/crypto/x509/x_all.c +++ b/Cryptlib/OpenSSL/crypto/x509/x_all.c @@ -71,16 +71,158 @@ # include #endif +#ifndef OPENSSL_NO_SM2 + +# include "openssl/asn1.h" +# include "openssl/evp.h" +# include "crypto/asn1/asn1_locl.h" + +static int common_verify_sm2(void *data, EVP_PKEY *pkey, + int mdnid, int pknid, int req) +{ + X509 *x = NULL; + X509_REQ *r = NULL; + EVP_MD_CTX ctx; + unsigned char *buf_in = NULL; + int ret = -1, inl = 0; + size_t inll = 0; + EVP_PKEY_CTX *pctx = NULL; + const EVP_MD *type = EVP_get_digestbynid(mdnid); + ASN1_BIT_STRING *signature = NULL; + ASN1_OCTET_STRING *sm2_id = NULL; + ASN1_VALUE *tbv = NULL; + + if (type == NULL) { + goto err; + } + + if (pkey == NULL) { + return -1; + } + + if (req == 1) { + r = (X509_REQ *)data; + signature = r->signature; + sm2_id = r->sm2_id; + tbv = (ASN1_VALUE *)&r->req_info; + } else { + x = (X509 *)data; + signature = x->signature; + sm2_id = x->sm2_id; + tbv = (ASN1_VALUE *)x->cert_info; + } + + if (signature->type == V_ASN1_BIT_STRING && signature->flags & 0x7) { + return -1; + } + + EVP_MD_CTX_init(&ctx); + + /* Check public key OID matches public key type */ + if (EVP_PKEY_type(pknid) != pkey->ameth->pkey_id) { + goto err; + } + + if (!EVP_PKEY_set_type(pkey, EVP_PKEY_SM2)) { + ret = 0; + goto err; + } + pctx = EVP_PKEY_CTX_new(pkey, NULL); + if (pctx == NULL) { + ret = 0; + goto err; + } + /* NOTE: we tolerate no actual ID, to provide maximum flexibility */ + if (sm2_id != NULL + && EVP_PKEY_CTX_set1_id(pctx, sm2_id->data, sm2_id->length) != 1) { + ret = 0; + goto err; + } + EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX); + + if (!EVP_DigestVerifyInit(&ctx, NULL, type, NULL, pkey)) { + ret = 0; + goto err; + } + + inl = ASN1_item_i2d(tbv, &buf_in, + req == 1 ? + ASN1_ITEM_rptr(X509_REQ_INFO) : + ASN1_ITEM_rptr(X509_CINF)); + if (inl <= 0) { + goto err; + } + if (buf_in == NULL) { + goto err; + } + inll = inl; + + ret = EVP_DigestVerify(&ctx, signature->data, + (size_t)signature->length, buf_in, inl); + if (ret <= 0) { + goto err; + } + ret = 1; + err: + OPENSSL_cleanse(buf_in, inll); + EVP_MD_CTX_cleanup(&ctx); + EVP_PKEY_CTX_free(pctx); + return ret; +} + +static int x509_verify_sm2(X509 *x, EVP_PKEY *pkey, int mdnid, int pknid) +{ + return common_verify_sm2(x, pkey, mdnid, pknid, 0); +} + +static int x509_req_verify_sm2(X509_REQ *x, EVP_PKEY *pkey, + int mdnid, int pknid) +{ + return common_verify_sm2(x, pkey, mdnid, pknid, 1); +} + +#endif + + + int X509_verify(X509 *a, EVP_PKEY *r) { +#ifndef OPENSSL_NO_SM2 + int mdnid, pknid; +#endif if (X509_ALGOR_cmp(a->sig_alg, a->cert_info->signature)) return 0; + +#ifndef OPENSSL_NO_SM2 + /* Convert signature OID into digest and public key OIDs */ + if (!OBJ_find_sigid_algs(OBJ_obj2nid(a->sig_alg->algorithm), + &mdnid, &pknid)) { + return 0; + } + + if (pknid == NID_sm2) + return x509_verify_sm2(a, r, mdnid, pknid); +#endif + return (ASN1_item_verify(ASN1_ITEM_rptr(X509_CINF), a->sig_alg, a->signature, a->cert_info, r)); } int X509_REQ_verify(X509_REQ *a, EVP_PKEY *r) { +#ifndef OPENSSL_NO_SM2 + int mdnid, pknid; + + /* Convert signature OID into digest and public key OIDs */ + if (!OBJ_find_sigid_algs(OBJ_obj2nid(a->sig_alg->algorithm), + &mdnid, &pknid)) { + return 0; + } + + if (pknid == NID_sm2) + return x509_req_verify_sm2(a, r, mdnid, pknid); +#endif + return (ASN1_item_verify(ASN1_ITEM_rptr(X509_REQ_INFO), a->sig_alg, a->signature, a->req_info, r)); } diff --git a/Cryptlib/Pk/CryptPkcs7Verify.c b/Cryptlib/Pk/CryptPkcs7Verify.c index c189384..7fa8c41 100644 --- a/Cryptlib/Pk/CryptPkcs7Verify.c +++ b/Cryptlib/Pk/CryptPkcs7Verify.c @@ -878,6 +878,11 @@ Pkcs7Verify ( if (EVP_add_digest (EVP_sha512 ()) == 0) { return FALSE; } +#ifndef OPENSSL_NO_SM3 + if (EVP_add_digest (EVP_sm3 ()) == 0) { + return FALSE; + } +#endif if (EVP_add_digest_alias (SN_sha1WithRSAEncryption, SN_sha1WithRSA) == 0) { return FALSE; } diff --git a/Makefile b/Makefile index 24ac314..8876f9f 100644 --- a/Makefile +++ b/Makefile @@ -163,7 +163,7 @@ Cryptlib/libcryptlib.a: $(MAKE) TOPDIR=$(TOPDIR) VPATH=$(TOPDIR)/Cryptlib -C Cryptlib -f $(TOPDIR)/Cryptlib/Makefile Cryptlib/OpenSSL/libopenssl.a: - for i in x509v3 x509 txt_db stack sha rsa rc4 rand pkcs7 pkcs12 pem ocsp objects modes md5 lhash kdf hmac evp err dso dh conf comp cmac buffer bn bio async/arch asn1 aes; do mkdir -p Cryptlib/OpenSSL/crypto/$$i; done + for i in x509v3 x509 txt_db stack sha rsa rc4 rand pkcs7 pkcs12 pem ocsp objects modes md5 lhash kdf hmac evp err dso dh conf comp cmac buffer bn bio async/arch asn1 aes ec sm3 sm2 ecdsa; do mkdir -p Cryptlib/OpenSSL/crypto/$$i; done $(MAKE) TOPDIR=$(TOPDIR) VPATH=$(TOPDIR)/Cryptlib/OpenSSL -C Cryptlib/OpenSSL -f $(TOPDIR)/Cryptlib/OpenSSL/Makefile lib/lib.a: | $(TOPDIR)/lib/Makefile $(wildcard $(TOPDIR)/include/*.[ch]) diff --git a/MokManager.c b/MokManager.c index ffcd6a6..8b7fd4b 100644 --- a/MokManager.c +++ b/MokManager.c @@ -1910,6 +1910,9 @@ static EFI_STATUS enroll_file(void *data, UINTN datasize, BOOLEAN hash) if (hash) { UINT8 sha256[SHA256_DIGEST_SIZE]; UINT8 sha1[SHA1_DIGEST_SIZE]; +#ifdef ENABLE_SHIM_SM + UINT8 sm3[SM3_DIGEST_SIZE]; +#endif SHIM_LOCK *shim_lock; PE_COFF_LOADER_IMAGE_CONTEXT context; @@ -1929,8 +1932,13 @@ static EFI_STATUS enroll_file(void *data, UINTN datasize, BOOLEAN hash) if (EFI_ERROR(efi_status)) goto out; +#ifdef ENABLE_SHIM_SM + efi_status = shim_lock->Hash(data, datasize, &context, sha256, + sha1, sm3); +#else efi_status = shim_lock->Hash(data, datasize, &context, sha256, sha1); +#endif if (EFI_ERROR(efi_status)) goto out; diff --git a/include/pe.h b/include/pe.h index ccc8798..93af091 100644 --- a/include/pe.h +++ b/include/pe.h @@ -28,10 +28,17 @@ handle_image (void *data, unsigned int datasize, EFI_PHYSICAL_ADDRESS *alloc_address, UINTN *alloc_pages); +#ifdef ENABLE_SHIM_SM +EFI_STATUS +generate_hash (char *data, unsigned int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, + UINT8 *sha256hash, UINT8 *sha1hash, UINT8 *sm3hash); +#else EFI_STATUS generate_hash (char *data, unsigned int datasize, PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, UINT8 *sha1hash); +#endif EFI_STATUS relocate_coff (PE_COFF_LOADER_IMAGE_CONTEXT *context, diff --git a/include/peimage.h b/include/peimage.h index e97b29c..7a4f356 100644 --- a/include/peimage.h +++ b/include/peimage.h @@ -807,6 +807,9 @@ typedef struct { #define SHA1_DIGEST_SIZE 20 #define SHA256_DIGEST_SIZE 32 +#ifdef ENABLE_SHIM_SM +#define SM3_DIGEST_SIZE 32 +#endif #define WIN_CERT_TYPE_PKCS_SIGNED_DATA 0x0002 typedef struct { diff --git a/pe.c b/pe.c index ba3e2bb..37b08a3 100644 --- a/pe.c +++ b/pe.c @@ -297,13 +297,24 @@ get_section_vma_by_name (char *name, size_t namesz, * Calculate the SHA1 and SHA256 hashes of a binary */ +#ifdef ENABLE_SHIM_SM +EFI_STATUS +generate_hash(char *data, unsigned int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, + UINT8 *sha1hash, UINT8 *sm3hash) +#else EFI_STATUS generate_hash(char *data, unsigned int datasize, PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, UINT8 *sha1hash) +#endif { unsigned int sha256ctxsize, sha1ctxsize; void *sha256ctx = NULL, *sha1ctx = NULL; +#ifdef ENABLE_SHIM_SM + unsigned int sm3ctxsize; + void *sm3ctx = NULL; +#endif char *hashbase; unsigned int hashsize; unsigned int SumOfBytesHashed, SumOfSectionBytes; @@ -327,12 +338,25 @@ generate_hash(char *data, unsigned int datasize, sha1ctxsize = Sha1GetContextSize(); sha1ctx = AllocatePool(sha1ctxsize); +#ifdef SHIM_ENABLE_SM + sm3ctxsize = Sm3GetContextSize(); + sm3ctx = AllocatePool(sm3ctxsize); +#endif + +#ifdef SHIM_ENABLE_SM + if (!sha256ctx || !sha1ctx || !sm3ctx) { +#else if (!sha256ctx || !sha1ctx) { +#endif perror(L"Unable to allocate memory for hash context\n"); return EFI_OUT_OF_RESOURCES; } +#ifdef SHIM_ENABLE_SM + if (!Sha256Init(sha256ctx) || !Sha1Init(sha1ctx) || !Sm3Init(sm3ctx)) { +#else if (!Sha256Init(sha256ctx) || !Sha1Init(sha1ctx)) { +#endif perror(L"Unable to initialise hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -344,8 +368,14 @@ generate_hash(char *data, unsigned int datasize, hashbase; check_size(data, datasize, hashbase, hashsize); +#ifdef SHIM_ENABLE_SM + if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || + !(Sha1Update(sha1ctx, hashbase, hashsize)) || + !(Sm3Update(sm3ctx, hashbase, hashsize))) { +#else if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || !(Sha1Update(sha1ctx, hashbase, hashsize))) { +#endif perror(L"Unable to generate hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -357,8 +387,14 @@ generate_hash(char *data, unsigned int datasize, hashsize = (char *)context->SecDir - hashbase; check_size(data, datasize, hashbase, hashsize); +#ifdef SHIM_ENABLE_SM + if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || + !(Sha1Update(sha1ctx, hashbase, hashsize)) || + !(Sm3Update(sm3ctx, hashbase, hashsize))) { +#else if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || !(Sha1Update(sha1ctx, hashbase, hashsize))) { +#endif perror(L"Unable to generate hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -375,8 +411,14 @@ generate_hash(char *data, unsigned int datasize, } check_size(data, datasize, hashbase, hashsize); +#ifdef SHIM_ENABLE_SM + if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || + !(Sha1Update(sha1ctx, hashbase, hashsize)) || + !(Sm3Update(sm3ctx, hashbase, hashsize))) { +#else if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || !(Sha1Update(sha1ctx, hashbase, hashsize))) { +#endif perror(L"Unable to generate hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -505,8 +547,14 @@ generate_hash(char *data, unsigned int datasize, hashsize = (unsigned int) Section->SizeOfRawData; check_size(data, datasize, hashbase, hashsize); +#ifdef SHIM_ENABLE_SM + if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || + !(Sha1Update(sha1ctx, hashbase, hashsize)) || + !(Sm3Update(sm3ctx, hashbase, hashsize))) { +#else if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || !(Sha1Update(sha1ctx, hashbase, hashsize))) { +#endif perror(L"Unable to generate hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -531,8 +579,14 @@ generate_hash(char *data, unsigned int datasize, } check_size(data, datasize, hashbase, hashsize); +#ifdef SHIM_ENABLE_SM + if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || + !(Sha1Update(sha1ctx, hashbase, hashsize)) || + !(Sm3Update(sm3ctx, hashbase, hashsize))) { +#else if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || !(Sha1Update(sha1ctx, hashbase, hashsize))) { +#endif perror(L"Unable to generate hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -551,8 +605,14 @@ generate_hash(char *data, unsigned int datasize, check_size(data, datasize, hashbase, hashsize); +#ifdef SHIM_ENABLE_SM + if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || + !(Sha1Update(sha1ctx, hashbase, hashsize)) || + !(Sm3Update(sm3ctx, hashbase, hashsize))) { +#else if (!(Sha256Update(sha256ctx, hashbase, hashsize)) || !(Sha1Update(sha1ctx, hashbase, hashsize))) { +#endif perror(L"Unable to generate hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -562,8 +622,14 @@ generate_hash(char *data, unsigned int datasize, } #endif +#ifdef SHIM_ENABLE_SM + if (!(Sha256Final(sha256ctx, sha256hash)) || + !(Sha1Final(sha1ctx, sha1hash)) || + !(Sm3Final(sm3ctx, sm3hash))) { +#else if (!(Sha256Final(sha256ctx, sha256hash)) || !(Sha1Final(sha1ctx, sha1hash))) { +#endif perror(L"Unable to finalise hash\n"); efi_status = EFI_OUT_OF_RESOURCES; goto done; @@ -573,6 +639,10 @@ generate_hash(char *data, unsigned int datasize, dhexdumpat(sha1hash, SHA1_DIGEST_SIZE, 0); dprint(L"sha256 authenticode hash:\n"); dhexdumpat(sha256hash, SHA256_DIGEST_SIZE, 0); +#ifdef SHIM_ENABLE_SM + dprint(L"sm3 authenticode hash:\n"); + dhexdumpat(sm3hash, SM3_DIGEST_SIZE, 0); +#endif done: if (SectionHeader) @@ -581,6 +651,10 @@ done: FreePool(sha1ctx); if (sha256ctx) FreePool(sha256ctx); +#ifdef SHIM_ENABLE_SM + if (sm3ctx) + FreePool(sm3ctx); +#endif return efi_status; } @@ -1027,6 +1101,9 @@ EFI_STATUS verify_image(void *data, unsigned int datasize, EFI_STATUS efi_status; UINT8 sha1hash[SHA1_DIGEST_SIZE]; UINT8 sha256hash[SHA256_DIGEST_SIZE]; +#ifdef SHIM_ENABLE_SM + UINT8 sm3hash[SHA256_DIGEST_SIZE]; +#endif /* * The binary header contains relevant context and section pointers @@ -1042,8 +1119,13 @@ EFI_STATUS verify_image(void *data, unsigned int datasize, * in order to load it. */ if (secure_mode()) { +#ifdef SHIM_ENABLE_SM + efi_status = verify_buffer(data, datasize, + context, sha256hash, sha1hash, sm3hash); +#else efi_status = verify_buffer(data, datasize, context, sha256hash, sha1hash); +#endif if (EFI_ERROR(efi_status)) { if (verbose) console_print(L"Verification failed: %r\n", efi_status); @@ -1061,8 +1143,13 @@ EFI_STATUS verify_image(void *data, unsigned int datasize, * this is only useful for the TPM1.2 case. We should try to fix * this in a follow-up. */ +#ifdef SHIM_ENABLE_SM + efi_status = generate_hash(data, datasize, context, sha256hash, + sha1hash, sm3hash); +#else efi_status = generate_hash(data, datasize, context, sha256hash, sha1hash); +#endif if (EFI_ERROR(efi_status)) return efi_status; @@ -1103,6 +1190,9 @@ handle_image (void *data, unsigned int datasize, int found_entry_point = 0; UINT8 sha1hash[SHA1_DIGEST_SIZE]; UINT8 sha256hash[SHA256_DIGEST_SIZE]; +#ifdef SHIM_ENABLE_SM + UINT8 sm3hash[SM3_DIGEST_SIZE]; +#endif /* * The binary header contains relevant context and section pointers @@ -1118,8 +1208,13 @@ handle_image (void *data, unsigned int datasize, * in order to load it. */ if (secure_mode ()) { +#ifdef SHIM_ENABLE_SM + efi_status = verify_buffer(data, datasize, &context, sha256hash, + sha1hash, sm3hash); +#else efi_status = verify_buffer(data, datasize, &context, sha256hash, sha1hash); +#endif if (EFI_ERROR(efi_status)) { if (verbose) @@ -1140,8 +1235,13 @@ handle_image (void *data, unsigned int datasize, * this is only useful for the TPM1.2 case. We should try to fix * this in a follow-up. */ +#ifdef SHIM_ENABLE_SM + efi_status = generate_hash(data, datasize, &context, sha256hash, + sha1hash, sm3hash); +#else efi_status = generate_hash(data, datasize, &context, sha256hash, sha1hash); +#endif if (EFI_ERROR(efi_status)) return efi_status; diff --git a/shim.c b/shim.c index fdd205e..5662ca8 100644 --- a/shim.c +++ b/shim.c @@ -458,11 +458,20 @@ BOOLEAN secure_mode (void) return TRUE; } +#ifdef ENABLE_SHIM_SM +static EFI_STATUS +verify_one_signature(WIN_CERTIFICATE_EFI_PKCS *sig, + UINT8 *sha256hash, UINT8 *sha1hash, UINT8 *sm3hash) +#else static EFI_STATUS verify_one_signature(WIN_CERTIFICATE_EFI_PKCS *sig, UINT8 *sha256hash, UINT8 *sha1hash) +#endif { EFI_STATUS efi_status; +#ifdef ENABLE_SHIM_SM + sm3hash = sm3hash; +#endif /* * Ensure that the binary isn't forbidden @@ -533,10 +542,15 @@ verify_one_signature(WIN_CERTIFICATE_EFI_PKCS *sig, dprint("verifying against vendor_cert\n"); } if (vendor_cert_size && - AuthenticodeVerify(sig->CertData, - sig->Hdr.dwLength - sizeof(sig->Hdr), - vendor_cert, vendor_cert_size, - sha256hash, SHA256_DIGEST_SIZE)) { +#ifdef ENABLE_SHIM_SM + (AuthenticodeVerify(sig->CertData, sig->Hdr.dwLength - sizeof(sig->Hdr), + vendor_cert, vendor_cert_size, sha256hash, SHA256_DIGEST_SIZE) || + AuthenticodeVerify(sig->CertData, sig->Hdr.dwLength - sizeof(sig->Hdr), + vendor_cert, vendor_cert_size, sm3hash, SM3_DIGEST_SIZE))) { +#else + (AuthenticodeVerify(sig->CertData, sig->Hdr.dwLength - sizeof(sig->Hdr), + vendor_cert, vendor_cert_size, sha256hash, SHA256_DIGEST_SIZE)) { +#endif dprint(L"AuthenticodeVerify(vendor_cert) succeeded\n"); update_verification_method(VERIFIED_BY_CERT); tpm_measure_variable(L"Shim", SHIM_LOCK_GUID, @@ -558,10 +572,17 @@ verify_one_signature(WIN_CERTIFICATE_EFI_PKCS *sig, /* * Check that the signature is valid and matches the binary */ +#ifdef ENABLE_SHIM_SM +EFI_STATUS +verify_buffer_authenticode (char *data, int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, + UINT8 *sha256hash, UINT8 *sha1hash, UINT8 *sm3hash) +#else EFI_STATUS verify_buffer_authenticode (char *data, int datasize, PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, UINT8 *sha1hash) +#endif { EFI_STATUS ret_efi_status; size_t size = datasize; @@ -578,7 +599,12 @@ verify_buffer_authenticode (char *data, int datasize, */ drain_openssl_errors(); +#ifdef ENABLE_SHIM_SM + ret_efi_status = generate_hash(data, datasize, context, sha256hash, sha1hash, sm3hash); +#else ret_efi_status = generate_hash(data, datasize, context, sha256hash, sha1hash); +#endif + if (EFI_ERROR(ret_efi_status)) { dprint(L"generate_hash: %r\n", ret_efi_status); PrintErrors(); @@ -665,7 +691,11 @@ verify_buffer_authenticode (char *data, int datasize, dprint(L"Attempting to verify signature %d:\n", i++); +#ifdef ENABLE_SHIM_SM + efi_status = verify_one_signature(sig, sha256hash, sha1hash, sm3hash); +#else efi_status = verify_one_signature(sig, sha256hash, sha1hash); +#endif /* * If we didn't get EFI_SECURITY_VIOLATION from @@ -746,10 +776,17 @@ verify_buffer_sbat (char *data, int datasize, * Check that the signature is valid and matches the binary and that * the binary is permitted to load by SBAT. */ +#ifdef ENABLE_SHIM_SM +EFI_STATUS +verify_buffer (char *data, int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, + UINT8 *sha256hash, UINT8 *sha1hash, UINT8 *sm3hash) +#else EFI_STATUS verify_buffer (char *data, int datasize, PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, UINT8 *sha1hash) +#endif { EFI_STATUS efi_status; @@ -757,7 +794,11 @@ verify_buffer (char *data, int datasize, if (EFI_ERROR(efi_status)) return efi_status; +#ifdef ENABLE_SHIM_SM + return verify_buffer_authenticode(data, datasize, context, sha256hash, sha1hash, sm3hash); +#else return verify_buffer_authenticode(data, datasize, context, sha256hash, sha1hash); +#endif } static int @@ -970,6 +1011,9 @@ EFI_STATUS shim_verify (void *buffer, UINT32 size) PE_COFF_LOADER_IMAGE_CONTEXT context; UINT8 sha1hash[SHA1_DIGEST_SIZE]; UINT8 sha256hash[SHA256_DIGEST_SIZE]; +#ifdef ENABLE_SHIM_SM + UINT8 sm3hash[SM3_DIGEST_SIZE]; +#endif if ((INT32)size < 0) return EFI_INVALID_PARAMETER; @@ -981,8 +1025,13 @@ EFI_STATUS shim_verify (void *buffer, UINT32 size) if (EFI_ERROR(efi_status)) goto done; +#ifdef ENABLE_SHIM_SM + efi_status = generate_hash(buffer, size, &context, + sha256hash, sha1hash, sm3hash); +#else efi_status = generate_hash(buffer, size, &context, sha256hash, sha1hash); +#endif if (EFI_ERROR(efi_status)) goto done; @@ -1002,16 +1051,27 @@ EFI_STATUS shim_verify (void *buffer, UINT32 size) goto done; } +#ifdef ENABLE_SHIM_SM + efi_status = verify_buffer(buffer, size, + &context, sha256hash, sha1hash, sm3hash); +#else efi_status = verify_buffer(buffer, size, &context, sha256hash, sha1hash); +#endif done: in_protocol = 0; return efi_status; } +#ifdef ENABLE_SHIM_SM +static EFI_STATUS shim_hash (char *data, int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, + UINT8 *sha256hash, UINT8 *sha1hash, UINT8 *sm3hash) +#else static EFI_STATUS shim_hash (char *data, int datasize, PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, UINT8 *sha1hash) +#endif { EFI_STATUS efi_status; @@ -1019,8 +1079,13 @@ static EFI_STATUS shim_hash (char *data, int datasize, return EFI_INVALID_PARAMETER; in_protocol = 1; +#ifdef ENABLE_SHIM_SM + efi_status = generate_hash(data, datasize, context, + sha256hash, sha1hash, sm3hash); +#else efi_status = generate_hash(data, datasize, context, sha256hash, sha1hash); +#endif in_protocol = 0; return efi_status; diff --git a/shim.h b/shim.h index b5272b9..b9aa982 100644 --- a/shim.h +++ b/shim.h @@ -208,6 +208,18 @@ EFI_STATUS IN UINT32 size ); +#ifdef ENABLE_SHIM_SM +typedef +EFI_STATUS +(*EFI_SHIM_LOCK_HASH) ( + IN char *data, + IN int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, + UINT8 *sha256hash, + UINT8 *sha1hash, + UINT8 *sm3hash + ); +#else typedef EFI_STATUS (*EFI_SHIM_LOCK_HASH) ( @@ -217,6 +229,7 @@ EFI_STATUS UINT8 *sha256hash, UINT8 *sha1hash ); +#endif typedef EFI_STATUS @@ -271,10 +284,17 @@ extern UINT32 load_options_size; BOOLEAN secure_mode (void); +#ifdef ENABLE_SHIM_SM +EFI_STATUS +verify_buffer (char *data, int datasize, + PE_COFF_LOADER_IMAGE_CONTEXT *context, + UINT8 *sha256hash, UINT8 *sha1hash, UINT8 *sm3hash); +#else EFI_STATUS verify_buffer (char *data, int datasize, PE_COFF_LOADER_IMAGE_CONTEXT *context, UINT8 *sha256hash, UINT8 *sha1hash); +#endif #ifndef SHIM_UNIT_TEST #define perror_(file, line, func, fmt, ...) ({ \ -- 2.33.0