rsassa_pss_sign
ATTRIBUTE_WARN_UNUSED_RET int rsassa_pss_sign(const rsa_priv_key *priv, const u8 *m, u32 mlen,
ret = rsassa_pss_sign(&priv, t->m, t->mlen, sig, &siglen, modbits, t->hash, t->hash, t->saltlen, t->salt); EG(ret, err1);