- ECDSA_SIG *s;
- const unsigned char *p = sigbuf;
- unsigned char *der = NULL;
- int derlen = -1;
- int ret = -1;
-
- s = ECDSA_SIG_new();
- if (s == NULL)
- return (ret);
- if (d2i_ECDSA_SIG(&s, &p, sig_len) == NULL)
- goto err;
- /* Ensure signature uses DER and doesn't have trailing garbage */
- derlen = i2d_ECDSA_SIG(s, &der);
- if (derlen != sig_len || memcmp(sigbuf, der, derlen))
- goto err;
- ret = ECDSA_do_verify(dgst, dgst_len, s, eckey);
- err:
- OPENSSL_clear_free(der, derlen);
- ECDSA_SIG_free(s);
- return (ret);
+ if (eckey->meth->verify != NULL)
+ return eckey->meth->verify(type, dgst, dgst_len, sigbuf, sig_len,
+ eckey);
+ ECerr(EC_F_ECDSA_VERIFY, EC_R_OPERATION_NOT_SUPPORTED);
+ return 0;