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Third Party Openssl

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提交 2398404e 编写于 作者: J Jack Lloyd 提交者： Matt Caswell
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Set SM2 error codes 

Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6386)
上级 e425f90f
隐藏空白更改
内联 并排
Showing with 322 addition and 103 deletion
crypto/err/openssl.txt
浏览文件 @ 2398404e
......@@ -1068,6 +1068,13 @@ SM2_F_PKEY_SM2_CTRL_STR:275:pkey_sm2_ctrl_str
SM2_F_PKEY_SM2_KEYGEN:276:pkey_sm2_keygen
SM2_F_PKEY_SM2_PARAMGEN:277:pkey_sm2_paramgen
SM2_F_PKEY_SM2_SIGN:278:pkey_sm2_sign
SM2_F_SM2_COMPUTE_MSG_HASH:284:SM2_compute_msg_hash
SM2_F_SM2_DECRYPT:279:SM2_decrypt
SM2_F_SM2_ENCRYPT:280:SM2_encrypt
SM2_F_SM2_SIGN:281:SM2_sign
SM2_F_SM2_SIG_GEN:285:SM2_sig_gen
SM2_F_SM2_SIG_VERIFY:282:SM2_sig_verify
SM2_F_SM2_VERIFY:283:SM2_verify
SSL_F_ADD_CLIENT_KEY_SHARE_EXT:438:*
SSL_F_ADD_KEY_SHARE:512:add_key_share
SSL_F_BYTES_TO_CIPHER_LIST:519:bytes_to_cipher_list
......
crypto/include/internal/sm2err.h
浏览文件 @ 2398404e
......@@ -11,85 +11,94 @@
#ifndef HEADER_SM2ERR_H
# define HEADER_SM2ERR_H
# ifdef __cplusplus
extern "C" {
# endif
# include <openssl/opensslconf.h>
# ifndef OPENSSL_NO_SM2
# ifdef __cplusplus
extern "C"
# endif
int ERR_load_SM2_strings(void);
# ifdef __cplusplus
}
# endif
/*
* SM2 function codes.
*/
# define SM2_F_PKEY_SM2_CTRL 274
# define SM2_F_PKEY_SM2_CTRL_STR 275
# define SM2_F_PKEY_SM2_KEYGEN 276
# define SM2_F_PKEY_SM2_PARAMGEN 277
# define SM2_F_PKEY_SM2_SIGN 278
# define SM2_F_PKEY_SM2_CTRL 274
# define SM2_F_PKEY_SM2_CTRL_STR 275
# define SM2_F_PKEY_SM2_KEYGEN 276
# define SM2_F_PKEY_SM2_PARAMGEN 277
# define SM2_F_PKEY_SM2_SIGN 278
# define SM2_F_SM2_COMPUTE_MSG_HASH 284
# define SM2_F_SM2_DECRYPT 279
# define SM2_F_SM2_ENCRYPT 280
# define SM2_F_SM2_SIGN 281
# define SM2_F_SM2_SIG_GEN 285
# define SM2_F_SM2_SIG_VERIFY 282
# define SM2_F_SM2_VERIFY 283
/*
* SM2 reason codes.
*/
# define SM2_R_ASN1_ERROR 115
# define SM2_R_ASN5_ERROR 1150
# define SM2_R_BAD_SIGNATURE 156
# define SM2_R_BIGNUM_OUT_OF_RANGE 144
# define SM2_R_BUFFER_TOO_SMALL 100
# define SM2_R_COORDINATES_OUT_OF_RANGE 146
# define SM2_R_CURVE_DOES_NOT_SUPPORT_ECDH 160
# define SM2_R_CURVE_DOES_NOT_SUPPORT_SIGNING 159
# define SM2_R_D2I_ECPKPARAMETERS_FAILURE 117
# define SM2_R_DECODE_ERROR 142
# define SM2_R_DISCRIMINANT_IS_ZERO 118
# define SM2_R_EC_GROUP_NEW_BY_NAME_FAILURE 119
# define SM2_R_FIELD_TOO_LARGE 143
# define SM2_R_GF2M_NOT_SUPPORTED 147
# define SM2_R_GROUP2PKPARAMETERS_FAILURE 120
# define SM2_R_I2D_ECPKPARAMETERS_FAILURE 121
# define SM2_R_INCOMPATIBLE_OBJECTS 101
# define SM2_R_INVALID_ARGUMENT 112
# define SM2_R_INVALID_COMPRESSED_POINT 110
# define SM2_R_INVALID_COMPRESSION_BIT 109
# define SM2_R_INVALID_CURVE 141
# define SM2_R_INVALID_DIGEST 151
# define SM2_R_INVALID_DIGEST_TYPE 138
# define SM2_R_INVALID_ENCODING 102
# define SM2_R_INVALID_FIELD 103
# define SM2_R_INVALID_FORM 104
# define SM2_R_INVALID_GROUP_ORDER 122
# define SM2_R_INVALID_KEY 116
# define SM2_R_INVALID_OUTPUT_LENGTH 161
# define SM2_R_INVALID_PEER_KEY 133
# define SM2_R_INVALID_PENTANOMIAL_BASIS 132
# define SM2_R_INVALID_PRIVATE_KEY 123
# define SM2_R_INVALID_TRINOMIAL_BASIS 137
# define SM2_R_KDF_PARAMETER_ERROR 148
# define SM2_R_KEYS_NOT_SET 140
# define SM2_R_MISSING_PARAMETERS 124
# define SM2_R_MISSING_PRIVATE_KEY 125
# define SM2_R_NEED_NEW_SETUP_VALUES 157
# define SM2_R_NOT_A_NIST_PRIME 135
# define SM2_R_NOT_IMPLEMENTED 126
# define SM2_R_NOT_INITIALIZED 111
# define SM2_R_NO_PARAMETERS_SET 139
# define SM2_R_NO_PRIVATE_VALUE 154
# define SM2_R_OPERATION_NOT_SUPPORTED 152
# define SM2_R_PASSED_NULL_PARAMETER 134
# define SM2_R_PEER_KEY_ERROR 149
# define SM2_R_PKPARAMETERS2GROUP_FAILURE 127
# define SM2_R_POINT_ARITHMETIC_FAILURE 155
# define SM2_R_POINT_AT_INFINITY 106
# define SM2_R_POINT_IS_NOT_ON_CURVE 107
# define SM2_R_RANDOM_NUMBER_GENERATION_FAILED 158
# define SM2_R_SHARED_INFO_ERROR 150
# define SM2_R_SLOT_FULL 108
# define SM2_R_UNDEFINED_GENERATOR 113
# define SM2_R_UNDEFINED_ORDER 128
# define SM2_R_UNKNOWN_GROUP 129
# define SM2_R_UNKNOWN_ORDER 114
# define SM2_R_UNSUPPORTED_FIELD 131
# define SM2_R_WRONG_CURVE_PARAMETERS 145
# define SM2_R_WRONG_ORDER 130
# define SM2_R_ASN1_ERROR 115
# define SM2_R_ASN5_ERROR 1150
# define SM2_R_BAD_SIGNATURE 156
# define SM2_R_BIGNUM_OUT_OF_RANGE 144
# define SM2_R_BUFFER_TOO_SMALL 100
# define SM2_R_COORDINATES_OUT_OF_RANGE 146
# define SM2_R_CURVE_DOES_NOT_SUPPORT_ECDH 160
# define SM2_R_CURVE_DOES_NOT_SUPPORT_SIGNING 159
# define SM2_R_D2I_ECPKPARAMETERS_FAILURE 117
# define SM2_R_DECODE_ERROR 142
# define SM2_R_DISCRIMINANT_IS_ZERO 118
# define SM2_R_EC_GROUP_NEW_BY_NAME_FAILURE 119
# define SM2_R_FIELD_TOO_LARGE 143
# define SM2_R_GF2M_NOT_SUPPORTED 147
# define SM2_R_GROUP2PKPARAMETERS_FAILURE 120
# define SM2_R_I2D_ECPKPARAMETERS_FAILURE 121
# define SM2_R_INCOMPATIBLE_OBJECTS 101
# define SM2_R_INVALID_ARGUMENT 112
# define SM2_R_INVALID_COMPRESSED_POINT 110
# define SM2_R_INVALID_COMPRESSION_BIT 109
# define SM2_R_INVALID_CURVE 141
# define SM2_R_INVALID_DIGEST 151
# define SM2_R_INVALID_DIGEST_TYPE 138
# define SM2_R_INVALID_ENCODING 102
# define SM2_R_INVALID_FIELD 103
# define SM2_R_INVALID_FORM 104
# define SM2_R_INVALID_GROUP_ORDER 122
# define SM2_R_INVALID_KEY 116
# define SM2_R_INVALID_OUTPUT_LENGTH 161
# define SM2_R_INVALID_PEER_KEY 133
# define SM2_R_INVALID_PENTANOMIAL_BASIS 132
# define SM2_R_INVALID_PRIVATE_KEY 123
# define SM2_R_INVALID_TRINOMIAL_BASIS 137
# define SM2_R_KDF_PARAMETER_ERROR 148
# define SM2_R_KEYS_NOT_SET 140
# define SM2_R_MISSING_PARAMETERS 124
# define SM2_R_MISSING_PRIVATE_KEY 125
# define SM2_R_NEED_NEW_SETUP_VALUES 157
# define SM2_R_NOT_A_NIST_PRIME 135
# define SM2_R_NOT_IMPLEMENTED 126
# define SM2_R_NOT_INITIALIZED 111
# define SM2_R_NO_PARAMETERS_SET 139
# define SM2_R_NO_PRIVATE_VALUE 154
# define SM2_R_OPERATION_NOT_SUPPORTED 152
# define SM2_R_PASSED_NULL_PARAMETER 134
# define SM2_R_PEER_KEY_ERROR 149
# define SM2_R_PKPARAMETERS2GROUP_FAILURE 127
# define SM2_R_POINT_ARITHMETIC_FAILURE 155
# define SM2_R_POINT_AT_INFINITY 106
# define SM2_R_POINT_IS_NOT_ON_CURVE 107
# define SM2_R_RANDOM_NUMBER_GENERATION_FAILED 158
# define SM2_R_SHARED_INFO_ERROR 150
# define SM2_R_SLOT_FULL 108
# define SM2_R_UNDEFINED_GENERATOR 113
# define SM2_R_UNDEFINED_ORDER 128
# define SM2_R_UNKNOWN_GROUP 129
# define SM2_R_UNKNOWN_ORDER 114
# define SM2_R_UNSUPPORTED_FIELD 131
# define SM2_R_WRONG_CURVE_PARAMETERS 145
# define SM2_R_WRONG_ORDER 130
# endif
#endif
crypto/sm2/sm2_crypt.c
浏览文件 @ 2398404e
......@@ -10,6 +10,8 @@
*/
#include "internal/sm2.h"
#include "internal/sm2err.h"
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/bn.h>
#include <openssl/asn1.h>
......@@ -112,11 +114,17 @@ int SM2_encrypt(const EC_KEY *key,
kG = EC_POINT_new(group);
kP = EC_POINT_new(group);
if (kG == NULL || kP == NULL)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
ctx = BN_CTX_new();
if (ctx == NULL)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
BN_CTX_start(ctx);
k = BN_CTX_get(ctx);
......@@ -126,36 +134,57 @@ int SM2_encrypt(const EC_KEY *key,
y2 = BN_CTX_get(ctx);
if (y2 == NULL)
goto done;
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_BN_LIB);
goto done;
}
x2y2 = OPENSSL_zalloc(2 * field_size);
C3 = OPENSSL_zalloc(C3_size);
if (x2y2 == NULL || C3 == NULL)
goto done;
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
memset(ciphertext_buf, 0, *ciphertext_len);
BN_priv_rand_range(k, order);
if (EC_POINT_mul(group, kG, k, NULL, NULL, ctx) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_get_affine_coordinates_GFp(group, kG, x1, y1, ctx) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_mul(group, kP, NULL, P, k, ctx) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_get_affine_coordinates_GFp(group, kP, x2, y2, ctx) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EC_LIB);
goto done;
}
BN_bn2binpad(x2, x2y2, field_size);
BN_bn2binpad(y2, x2y2 + field_size, field_size);
msg_mask = OPENSSL_zalloc(msg_len);
if (msg_mask == NULL)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
/* X9.63 with no salt happens to match the KDF used in SM2 */
if (ECDH_KDF_X9_62(msg_mask, msg_len, x2y2, 2 * field_size, NULL, 0, digest)
......@@ -166,19 +195,34 @@ int SM2_encrypt(const EC_KEY *key,
msg_mask[i] ^= msg[i];
if (EVP_DigestInit(hash, digest) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, x2y2, field_size) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, msg, msg_len) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, x2y2 + field_size, field_size) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestFinal(hash, C3, NULL) == 0)
{
SM2err(SM2_F_SM2_ENCRYPT, ERR_R_EVP_LIB);
goto done;
}
ctext_struct.C1x = x1;
ctext_struct.C1y = y1;
......@@ -240,10 +284,16 @@ int SM2_decrypt(const EC_KEY *key,
sm2_ctext = d2i_SM2_Ciphertext(NULL, &ciphertext, ciphertext_len);
if (sm2_ctext == NULL)
{
SM2err(SM2_F_SM2_DECRYPT, SM2_R_ASN1_ERROR);
goto done;
}
if (sm2_ctext->C3->length != hash_size)
{
SM2err(SM2_F_SM2_DECRYPT, SM2_R_INVALID_ENCODING);
goto done;
}
C2 = sm2_ctext->C2->data;
C3 = sm2_ctext->C3->data;
......@@ -251,36 +301,57 @@ int SM2_decrypt(const EC_KEY *key,
ctx = BN_CTX_new();
if (ctx == NULL)
goto done;
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
BN_CTX_start(ctx);
x2 = BN_CTX_get(ctx);
y2 = BN_CTX_get(ctx);
if(y2 == NULL)
goto done;
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_BN_LIB);
goto done;
}
msg_mask = OPENSSL_zalloc(msg_len);
x2y2 = OPENSSL_zalloc(2 * field_size);
computed_C3 = OPENSSL_zalloc(hash_size);
if(msg_mask == NULL || x2y2 == NULL || computed_C3 == NULL)
goto done;
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
C1 = EC_POINT_new(group);
if (C1 == NULL)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
if (EC_POINT_set_affine_coordinates_GFp
(group, C1, sm2_ctext->C1x, sm2_ctext->C1y, ctx) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_mul(group, C1, NULL, C1, EC_KEY_get0_private_key(key), ctx) ==
0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_get_affine_coordinates_GFp(group, C1, x2, y2, ctx) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EC_LIB);
goto done;
}
BN_bn2binpad(x2, x2y2, field_size);
BN_bn2binpad(y2, x2y2 + field_size, field_size);
......@@ -295,22 +366,40 @@ int SM2_decrypt(const EC_KEY *key,
hash = EVP_MD_CTX_new();
if (hash == NULL)
goto done;
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_MALLOC_FAILURE);
goto done;
}
if (EVP_DigestInit(hash, digest) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, x2y2, field_size) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, ptext_buf, msg_len) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, x2y2 + field_size, field_size) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestFinal(hash, computed_C3, NULL) == 0)
{
SM2err(SM2_F_SM2_DECRYPT, ERR_R_EVP_LIB);
goto done;
}
if (memcmp(computed_C3, C3, hash_size) != 0)
goto done;
......
crypto/sm2/sm2_err.c
浏览文件 @ 2398404e
......@@ -19,6 +19,14 @@ static const ERR_STRING_DATA SM2_str_functs[] = {
{ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_KEYGEN, 0), "pkey_sm2_keygen"},
{ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_PARAMGEN, 0), "pkey_sm2_paramgen"},
{ERR_PACK(ERR_LIB_SM2, SM2_F_PKEY_SM2_SIGN, 0), "pkey_sm2_sign"},
{ERR_PACK(ERR_LIB_SM2, SM2_F_SM2_COMPUTE_MSG_HASH, 0),
"SM2_compute_msg_hash"},
{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_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}
};
......
crypto/sm2/sm2_sign.c
浏览文件 @ 2398404e
......@@ -10,14 +10,17 @@
*/
#include "internal/sm2.h"
#include "internal/sm2err.h"
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <string.h>
static BIGNUM *compute_msg_hash(const EVP_MD *digest,
const EC_KEY *key,
const char *user_id,
const uint8_t *msg, size_t msg_len)
static BIGNUM *SM2_compute_msg_hash(const EVP_MD *digest,
const EC_KEY *key,
const char *user_id,
const uint8_t *msg, size_t msg_len)
{
EVP_MD_CTX *hash = EVP_MD_CTX_new();
const int md_size = EVP_MD_size(digest);
......@@ -25,26 +28,44 @@ static BIGNUM *compute_msg_hash(const EVP_MD *digest,
BIGNUM *e = NULL;
if (za == NULL)
{
SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_MALLOC_FAILURE);
goto done;
}
if (hash == NULL)
{
SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_MALLOC_FAILURE);
goto done;
}
if (SM2_compute_userid_digest(za, digest, user_id, key) == 0)
goto done;
if (EVP_DigestInit(hash, digest) == 0)
{
SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, za, md_size) == 0)
{
SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_EVP_LIB);
goto done;
}
if (EVP_DigestUpdate(hash, msg, msg_len) == 0)
{
SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_EVP_LIB);
goto done;
}
/* reuse za buffer to hold H(ZA || M) */
if (EVP_DigestFinal(hash, za, NULL) == 0)
{
SM2err(SM2_F_SM2_COMPUTE_MSG_HASH, ERR_R_EVP_LIB);
goto done;
}
e = BN_bin2bn(za, md_size, NULL);
......@@ -73,11 +94,17 @@ ECDSA_SIG *SM2_sig_gen(const EC_KEY *key, const BIGNUM *e)
kG = EC_POINT_new(group);
if (kG == NULL)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_MALLOC_FAILURE);
goto done;
}
ctx = BN_CTX_new();
if (ctx == NULL)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_MALLOC_FAILURE);
goto done;
}
BN_CTX_start(ctx);
......@@ -87,26 +114,41 @@ ECDSA_SIG *SM2_sig_gen(const EC_KEY *key, const BIGNUM *e)
tmp = BN_CTX_get(ctx);
if (tmp == NULL)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
/* These values are returned and so should not be allocated out of the context */
r = BN_new();
s = BN_new();
if (r == NULL || s == NULL)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_MALLOC_FAILURE);
goto done;
}
for (;;) {
BN_priv_rand_range(k, order);
if (EC_POINT_mul(group, kG, k, NULL, NULL, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_get_affine_coordinates_GFp(group, kG, x1, NULL, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_EC_LIB);
goto done;
}
if (BN_mod_add(r, e, x1, order, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
/* try again if r == 0 or r+k == n */
if (BN_is_zero(r))
......@@ -117,18 +159,43 @@ ECDSA_SIG *SM2_sig_gen(const EC_KEY *key, const BIGNUM *e)
if (BN_cmp(rk, order) == 0)
continue;
BN_add(s, dA, BN_value_one());
BN_mod_inverse(s, s, order, ctx);
BN_mod_mul(tmp, dA, r, order, ctx);
BN_sub(tmp, k, tmp);
BN_mod_mul(s, s, tmp, order, ctx);
if(BN_add(s, dA, BN_value_one()) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
if(BN_mod_inverse(s, s, order, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
if(BN_mod_mul(tmp, dA, r, order, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
if(BN_sub(tmp, k, tmp) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
if(BN_mod_mul(s, s, tmp, order, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_BN_LIB);
goto done;
}
sig = ECDSA_SIG_new();
if (sig == NULL)
{
SM2err(SM2_F_SM2_SIG_GEN, ERR_R_MALLOC_FAILURE);
goto done;
}
/* takes ownership of r and s */
ECDSA_SIG_set0(sig, r, s);
......@@ -164,10 +231,17 @@ int SM2_sig_verify(const EC_KEY *key, const ECDSA_SIG *sig, const BIGNUM *e)
ctx = BN_CTX_new();
if (ctx == NULL)
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_MALLOC_FAILURE);
goto done;
}
pt = EC_POINT_new(group);
if (pt == NULL)
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_MALLOC_FAILURE);
goto done;
}
BN_CTX_start(ctx);
......@@ -175,7 +249,10 @@ int SM2_sig_verify(const EC_KEY *key, const ECDSA_SIG *sig, const BIGNUM *e)
x1 = BN_CTX_get(ctx);
if (x1 == NULL)
goto done;
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_MALLOC_FAILURE);
goto done;
}
/*
B1: verify whether r' in [1,n-1], verification failed if not
......@@ -189,30 +266,47 @@ int SM2_sig_verify(const EC_KEY *key, const ECDSA_SIG *sig, const BIGNUM *e)
ECDSA_SIG_get0(sig, &r, &s);
if (BN_cmp(r, BN_value_one()) < 0)
goto done;
if (BN_cmp(s, BN_value_one()) < 0)
if ((BN_cmp(r, BN_value_one()) < 0) || (BN_cmp(s, BN_value_one()) < 0))
{
SM2err(SM2_F_SM2_SIG_VERIFY, SM2_R_BAD_SIGNATURE);
goto done;
}
if (BN_cmp(order, r) <= 0)
goto done;
if (BN_cmp(order, s) <= 0)
if ((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) == 0)
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_BN_LIB);
goto done;
}
if (BN_is_zero(t) == 1)
{
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) == 0)
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_EC_LIB);
goto done;
}
if (EC_POINT_get_affine_coordinates_GFp(group, pt, x1, NULL, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_EC_LIB);
goto done;
}
if (BN_mod_add(t, e, x1, order, ctx) == 0)
{
SM2err(SM2_F_SM2_SIG_VERIFY, ERR_R_BN_LIB);
goto done;
}
if (BN_cmp(r, t) == 0)
ret = 1;
......@@ -230,7 +324,7 @@ ECDSA_SIG *SM2_do_sign(const EC_KEY *key,
BIGNUM *e = NULL;
ECDSA_SIG *sig = NULL;
e = compute_msg_hash(digest, key, user_id, msg, msg_len);
e = SM2_compute_msg_hash(digest, key, user_id, msg, msg_len);
if (e == NULL)
goto done;
......@@ -249,7 +343,7 @@ int SM2_do_verify(const EC_KEY *key,
BIGNUM *e = NULL;
int ret = -1;
e = compute_msg_hash(digest, key, user_id, msg, msg_len);
e = SM2_compute_msg_hash(digest, key, user_id, msg, msg_len);
if (e == NULL)
goto done;
......@@ -267,11 +361,11 @@ int SM2_sign(int type, const unsigned char *dgst, int dgstlen,
ECDSA_SIG *s = NULL;
int ret = -1;
if (type != NID_sm3)
goto done;
if (dgstlen != 32) /* expected length of SM3 hash */
goto done;
if (type != NID_sm3 || dgstlen != 32)
{
SM2err(SM2_F_SM2_SIGN, SM2_R_INVALID_DIGEST_TYPE);
goto done;
}
e = BN_bin2bn(dgst, dgstlen, NULL);
......@@ -298,17 +392,29 @@ int SM2_verify(int type, const unsigned char *dgst, int dgstlen,
int ret = -1;
if (type != NID_sm3)
goto done;
{
SM2err(SM2_F_SM2_VERIFY, SM2_R_INVALID_DIGEST_TYPE);
goto done;
}
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);
......
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