fido_check_rp_id
if (fido_check_rp_id(assert->rp_id, stmt->authdata.rp_id_hash) != 0) {
if (fido_check_rp_id(cred->rp.id, cred->authdata.rp_id_hash) != 0) {
if (fido_check_rp_id(cred->rp.id, cred->authdata.rp_id_hash) != 0) {
int fido_check_rp_id(const char *, const unsigned char *);