private boolean isDynamicClientRegistrationRequestProtected() {
        val oidc = casProperties.getAuthn().getOidc();
        return oidc.getRegistration().getDynamicClientRegistrationMode().isProtected();
    }
Is dynamic client registration request protected?

@return true/false
support/cas-server-support-oidc-core-api/src/main/java/org/apereo/cas/oidc/web/OidcHandlerInterceptorAdapter.java