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Update SM9 key agreement

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This commit is contained in:
Zhi Guan
2018-10-12 12:07:58 +08:00
parent 989bc7638d
commit 5293d0f38d
9 changed files with 5949 additions and 5394 deletions
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11
crypto/sm9/sm9_enc.c
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@@ -464,11 +464,6 @@ int SM9_decrypt(int type,
C2 = ASN1_STRING_get0_data(sm9cipher->c2);
C2_len = ASN1_STRING_length(sm9cipher->c2);
/* check mac length */
if (ASN1_STRING_length(sm9cipher->c3) != EVP_MD_size(md)) {
SM9err(SM9_F_SM9_DECRYPT, ERR_R_SM9_LIB);
goto end;
}
/* unwrap key */
keylen = C2_len + EVP_MD_size(md);
@@ -489,6 +484,12 @@ int SM9_decrypt(int type,
}
*outlen = C2_len;
/* check mac length */
if (ASN1_STRING_length(sm9cipher->c3) != EVP_MD_size(md)) {
SM9err(SM9_F_SM9_DECRYPT, ERR_R_SM9_LIB);
goto end;
}
/* C3 = Hv(C2||K2) */
memcpy(key, C2, C2_len);
if (!EVP_Digest(key, keylen, mac, &maclen, md, NULL)) {