ECDSA_sign
ret = ECDSA_sign(0, buf, 20, ecdsasig,
ret = ECDSA_sign(0, buf, 20,
ret = ECDSA_sign(type, tbs, tbslen, sig, &sltmp, ec);
int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen,
if (!ECDSA_sign(0, &data[MD5_DIGEST_LENGTH], SHA_DIGEST_LENGTH,
if (!ECDSA_sign(0, input, input_len, signature, &signature_len,
ret = ECDSA_sign(-1, data, dlen, signature,