@Override
    public Set<String> getAllowedSigningAlgorithms(final OAuthRegisteredService registeredService) {
        return this.discoverySettings.getIntrospectionSignedResponseAlgValuesSupported();
    }
This is {@link OidcTokenIntrospectionSigningAndEncryptionService}.

@author Misagh Moayyed
@since 7.0.0
support/cas-server-support-oidc-core-api/src/main/java/org/apereo/cas/oidc/profile/OidcTokenIntrospectionSigningAndEncryptionService.java