[keycloak-user] JWT - Signature Verification Failure

Hi, Is there a workaround when we use Keycloak 1.9.4 to avoid that the client who will verify the certificate of the JWT will issue this error WARNING: JWT decode failure java.lang.RuntimeException: Signature verification failed at io.vertx.ext.auth.jwt.impl.JWT.decode(JWT.java:200) at io.vertx.ext.auth.jwt.impl.JWTAuthProviderImpl.authenticate(JWTAuthProviderImpl.java:84) if (!crypto.verify(base64urlDecode(signatureSeg), signingInput.getBytes(UTF8))) { throw new RuntimeException("Signature verification failed"); } Is it because the token is not base64 ? Regards, Charles Moulliard Sr. Pr. Software Engineer @redhat cmoulliard(a)redhat.com | work: +31 205 65 12 84 | mobile: +32 473 60 40 14 Twitter: @cmoulliard <http://twitter.com/cmoulliard> | blog: cmoulliard.github.io committer: apache camel, karaf, servicemix, hawtio, fabric8, drools, jbpm, deltaspike