ossl_rsa_key_op_get_protect
int ossl_rsa_key_op_get_protect(const RSA *rsa, int operation, int *outprotect);
if (!ossl_rsa_key_op_get_protect(vrsa, operation, &protect))
if (!ossl_rsa_key_op_get_protect(vrsa, operation, &protect))
if (!ossl_rsa_key_op_get_protect(prsactx->rsa, operation, &protect))