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add to call wc_ecc_rs_to_sig and wc_ecc_verify_has
This commit is contained in:
Hideki Miyazaki
2022-04-28 08:59:27 +09:00
parent c1f117413f
commit 88abc9f3c1
1 changed files with 37 additions and 4 deletions
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41
src/ssl.c
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@@ -31439,7 +31439,8 @@ int wolfSSL_EC_POINT_is_at_infinity(const WOLFSSL_EC_GROUP *group,
return WOLFSSL_FAILURE;
}
#else
return SSL_NOT_IMPLEMENTED;
WOLFSSL_MSG("ecc_point_is_at_infinitiy compiled out");
return WOLFSSL_FAILURE;
#endif
return ret;
}
@@ -31667,6 +31668,13 @@ int wolfSSL_ECDSA_do_verify(const unsigned char *d, int dlen,
const WOLFSSL_ECDSA_SIG *sig, WOLFSSL_EC_KEY *key)
{
int check_sign = 0;
#ifdef WOLF_CRYPTO_CB_ONLY_ECC
byte signature[ECC_MAX_SIG_SIZE];
word32 signaturelen = (word32)sizeof(sig);
char* r;
char* s;
int ret = 0;
#endif
WOLFSSL_ENTER("wolfSSL_ECDSA_do_verify");
@@ -31698,9 +31706,34 @@ int wolfSSL_ECDSA_do_verify(const unsigned char *d, int dlen,
return WOLFSSL_FAILURE;
}
#else
(void) dlen;
(void) check_sign;
return SSL_NOT_IMPLEMENTED;
/* convert big number to hex */
r = wolfSSL_BN_bn2hex(sig->r);
s = wolfSSL_BN_bn2hex(sig->s);
/* get DER-encoded ECDSA signature */
ret = wc_ecc_rs_to_sig((const char*)r, (const char*)s,
signature, &signaturelen);
/* free r and s */
if (r)
XFREE(r, NULL, DYNAMIC_TYPE_OPENSSL);
if (s)
XFREE(s, NULL, DYNAMIC_TYPE_OPENSSL);
if (ret != MP_OKAY) {
WOLFSSL_MSG("wc_ecc_verify_hash failed");
return WOLFSSL_FATAL_ERROR;
}
/* verify hash. expects to call wc_CryptoCb_EccVerify internally */
ret = wc_ecc_verify_hash(signature, signaturelen, d, dlen, &check_sign,
(ecc_key*)key->internal);
if (ret != MP_OKAY) {
WOLFSSL_MSG("wc_ecc_verify_hash failed");
return WOLFSSL_FATAL_ERROR;
}
else if (check_sign == 0) {
WOLFSSL_MSG("wc_ecc_verify_hash incorrect signature detected");
return WOLFSSL_FAILURE;
}
#endif
return WOLFSSL_SUCCESS;