- ECDSA_SIG *s;
- RAND_seed(dgst, dlen);
- s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey);
- if (s == NULL) {
- *siglen = 0;
- return 0;
- }
- *siglen = i2d_ECDSA_SIG(s, &sig);
- ECDSA_SIG_free(s);
- return 1;
+ if (eckey->meth->sign != NULL)
+ return eckey->meth->sign(type, dgst, dlen, sig, siglen, kinv, r, eckey);
+ ECerr(EC_F_ECDSA_SIGN_EX, EC_R_OPERATION_NOT_SUPPORTED);
+ return 0;