DSA_sign
int DSA_sign(int type,const unsigned char *dgst,int dlen,
LCRYPTO_ALIAS(DSA_sign);
if (!DSA_sign(0, tbs, tbslen, sig, &siglen, dsa))
LCRYPTO_USED(DSA_sign);
if (DSA_sign(0, res2, hashlen, sbuf, &slen, dsa) <= 0)
DSA_sign(0, str1, 20, sig, &siglen, dsa);
ret = DSA_sign(EVP_PKEY_DSA, buf, 20, buf2,
ret = DSA_sign(EVP_PKEY_DSA, buf, 20, buf2,