Didn't find publicKey for kid ,Keycloak?

Question

I am getting this exception "Didn't find publicKey for kid" while calling endpoint from angular js 2 to the widlfly server .

authentication happened in keycloak , however i am calling about 8 endpoints from different clients (different micro services ) within same realm using same token but i got this exception only for this microservice call .

i am sure that the user has all roles for all clients . i also decoded the token on JWT to verify that.

sometimes it works and sometimes no!! this the exception stack trace :

Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
    at sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:90)
    at sun.security.validator.Validator.getInstance(Validator.java:179)
    at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:312)
    at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:171)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:184)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
    ... 55 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
    at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200)
    at java.security.cert.PKIXParameters.<init>(PKIXParameters.java:120)
    at java.security.cert.PKIXBuilderParameters.<init>(PKIXBuilderParameters.java:104)
    at sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:88)
    ... 67 more

2017-06-09 00:33:35,994 ERROR [org.keycloak.adapters.rotation.AdapterRSATokenVerifier] (default task-445) Didn't find publicKey for kid: QSm64gYAxG5-5Lt5r-T2dqQmHb8KKJ2dL3h_3Y8zXBE
2017-06-09 00:33:35,994 ERROR [org.keycloak.adapters.BearerTokenRequestAuthenticator] (default task-445) Failed to verify token: org.keycloak.common.VerificationException: Didn't find publicKey for specified kid
    at org.keycloak.adapters.rotation.AdapterRSATokenVerifier.getPublicKey(AdapterRSATokenVerifier.java:47)
    at org.keycloak.adapters.rotation.AdapterRSATokenVerifier.verifyToken(AdapterRSATokenVerifier.java:55)
    at org.keycloak.adapters.rotation.AdapterRSATokenVerifier.verifyToken(AdapterRSATokenVerifier.java:37)
    at org.keycloak.adapters.BearerTokenRequestAuthenticator.authenticateToken(BearerTokenRequestAuthenticator.java:87)
    at org.keycloak.adapters.BearerTokenRequestAuthenticator.authenticate(BearerTokenRequestAuthenticator.java:82)
    at org.keycloak.adapters.RequestAuthenticator.authenticate(RequestAuthenticator.java:67)
    at org.keycloak.adapters.undertow.AbstractUndertowKeycloakAuthMech.keycloakAuthenticate(AbstractUndertowKeycloakAuthMech.java:110)
    at org.keycloak.adapters.undertow.ServletKeycloakAuthMech.authenticate(ServletKeycloakAuthMech.java:92)
    at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:233)
    at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:250)
    at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.access$100(SecurityContextImpl.java:219)
    at io.undertow.security.impl.SecurityContextImpl.attemptAuthentication(SecurityContextImpl.java:121)
    at io.undertow.security.impl.SecurityContextImpl.authTransition(SecurityContextImpl.java:96)
    at io.undertow.security.impl.SecurityContextImpl.authenticate(SecurityContextImpl.java:89)
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:55)
    at io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
    at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
    at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.keycloak.adapters.undertow.ServletPreAuthActionsHandler.handleRequest(ServletPreAuthActionsHandler.java:69)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Answer 1

If this is still relevant, I had the same problem. In my case the problem was that in Keycloak the client name was not configured correctly. After correcting the client name within Keycloak everything works great.

Answer 2

In my experience this is usually an issue of the client application being unable to access the jwks_uri endpoints of the keycloak server.

You can rule this out by explicitly specifying "realm-public-key" which will "hard code" the value. https://github.com/keycloak/keycloak-documentation/blob/master/securing_apps/topics/oidc/java/java-adapter-config.adoc

You can also terminal into your application container and make sure you can curl these endpoints. Be sure to verify that this matches your auth-server configuration in your adapter.

http://localhost:8080/auth/realms/master/protocol/openid-connect/certs http://localhost:8080/auth/realms/master/protocol/openid-connect/certs