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update

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This commit is contained in:
Zhi Guan
2017-05-15 17:23:26 +08:00
parent bba5011e7c
commit 79e2936664
24 changed files with 531 additions and 76 deletions
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7
crypto/sm2/sm2_enc.c
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@@ -321,6 +321,7 @@ int SM2_do_decrypt(const EVP_MD *md, const SM2CiphertextValue *cv,
const BIGNUM *pri_key;
KDF_FUNC kdf;
EC_POINT *point = NULL;
EC_POINT *tmp_point = NULL;
BIGNUM *n = NULL;
BIGNUM *h = NULL;
BN_CTX *bn_ctx = NULL;
@@ -374,6 +375,7 @@ int SM2_do_decrypt(const EVP_MD *md, const SM2CiphertextValue *cv,
/* malloc */
point = EC_POINT_new(group);
tmp_point = EC_POINT_new(group);
n = BN_new();
h = BN_new();
bn_ctx = BN_CTX_new();
@@ -412,12 +414,12 @@ int SM2_do_decrypt(const EVP_MD *md, const SM2CiphertextValue *cv,
}
/* check [h]C1 != O */
if (!EC_POINT_mul(group, point, NULL, point, h, bn_ctx)) {
if (!EC_POINT_mul(group, tmp_point, NULL, point, h, bn_ctx)) {
SM2err(SM2_F_SM2_DO_DECRYPT, ERR_R_EC_LIB);
goto end;
}
if (EC_POINT_is_at_infinity(group, point)) {
if (EC_POINT_is_at_infinity(group, tmp_point)) {
SM2err(SM2_F_SM2_DO_DECRYPT, SM2_R_INVALID_CIPHERTEXT);
goto end;
}
@@ -462,6 +464,7 @@ int SM2_do_decrypt(const EVP_MD *md, const SM2CiphertextValue *cv,
ret = 1;
end:
EC_POINT_free(point);
EC_POINT_free(tmp_point);
BN_free(n);
BN_free(h);
BN_CTX_free(bn_ctx);