rsa_pss_get_param
if (!rsa_pss_get_param(pkey->pkey.rsa->pss, &md, &mgf1md,
if (!rsa_pss_get_param(pss, &md, &mgf1md, &saltlen)) {
int rsa_pss_get_param(const RSA_PSS_PARAMS *pss, const EVP_MD **pmd,
if (!rsa_pss_get_param(rsa->pss, &md, &mgf1md, &min_saltlen))