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first step of v2 final release

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This commit is contained in:
Zhi Guan
2017-11-05 21:00:36 +08:00
parent 480b9e8d88
commit 27bde477a5
395 changed files with 26341 additions and 31364 deletions
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46
crypto/sm2/sm2_enc.c
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@@ -246,9 +246,9 @@ int SM2_encrypt(int type, const unsigned char *in, size_t inlen,
}
if (!out) {
*outlen = i2d_SM2CiphertextValue(cv, NULL);
*outlen = i2d_SM2CiphertextValue(cv, NULL) + 96;
ret = 1;
} else if (*outlen < i2d_SM2CiphertextValue(cv, NULL)) {
} else if (*outlen < i2d_SM2CiphertextValue(cv, NULL) + 64) {
SM2err(SM2_F_SM2_ENCRYPT, SM2_R_BUFFER_TOO_SMALL);
ret = 0;
} else {
@@ -266,48 +266,54 @@ int SM2_decrypt(int type, const unsigned char *in, size_t inlen,
unsigned char *out, size_t *outlen, EC_KEY *ec_key)
{
int ret = 0;
SM2CiphertextValue *cv = NULL;
const EVP_MD *md;
const unsigned char *p;
SM2CiphertextValue *cv = NULL;
/* check arguments */
if (!(md = EVP_get_digestbynid(type))) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_INVALID_DIGEST_ALGOR);
return 0;
}
if (!in) {
SM2err(SM2_F_SM2_DECRYPT, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
if (inlen <= 0 || inlen > INT_MAX) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_INVALID_INPUT_LENGTH);
return 0;
}
if (!out) {
*outlen = inlen;
return 1;
} else if (*outlen < inlen) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_BUFFER_TOO_SMALL);
return 0;
}
if (!(md = EVP_get_digestbynid(type))) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_INVALID_DIGEST_ALGOR);
return 0;
}
if (!(cv = d2i_SM2CiphertextValue(NULL, &in, (long)inlen))) {
/* decode asn.1 and check no data remaining */
p = in;
if (!(cv = d2i_SM2CiphertextValue(NULL, &p, (long)inlen))) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_INVALID_CIPHERTEXT);
return 0;
}
if (inlen != i2d_SM2CiphertextValue(cv, NULL)) {
if (p != in + inlen) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_INVALID_CIPHERTEXT);
goto end;
}
/* return or check output length */
if (!out) {
*outlen = ASN1_STRING_length(cv->ciphertext);
ret = 1;
goto end;
} else if (*outlen < ASN1_STRING_length(cv->ciphertext)) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_BUFFER_TOO_SMALL);
ret = 0;
goto end;
}
/* do decrypt */
if (!SM2_do_decrypt(md, cv, out, outlen, ec_key)) {
SM2err(SM2_F_SM2_DECRYPT, SM2_R_DECRYPT_FAILURE);
goto end;
}
ret = 1;
end:
SM2CiphertextValue_free(cv);
return ret;