<div dir="ltr">I&#39;m getting the following error when trying to connect to a SAML 2.0 identity provider:<div><br></div><div><div>15:57:50,387 ERROR [org.keycloak.services] (default task-27) couldNotSendAuthenticationRequestMessage: org.keycloak.broker.provider.IdentityBrokerException: Could not create authentication request.</div><div>        at org.keycloak.broker.saml.SAMLIdentityProvider.performLogin(SAMLIdentityProvider.java:124)</div><div>        at org.keycloak.services.resources.IdentityBrokerService.performLogin(IdentityBrokerService.java:157)</div><div>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</div><div>        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)</div><div>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</div><div>        at java.lang.reflect.Method.invoke(Method.java:497)</div><div>        at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)</div><div>        at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)</div><div>        at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)</div><div>        at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:138)</div><div>        at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:101)</div><div>        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:395)</div><div>        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:202)</div><div>        at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221)</div><div>        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)</div><div>        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)</div><div>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)</div><div>        at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)</div><div>        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)</div><div>        at org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:88)</div><div>        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)</div><div>        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)</div><div>        at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)</div><div>        at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)</div><div>        at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)</div><div>        at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)</div><div>        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)</div><div>        at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)</div><div>        at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)</div><div>        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)</div><div>        at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)</div><div>        at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)</div><div>        at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)</div><div>        at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)</div><div>        at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)</div><div>        at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)</div><div>        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)</div><div>        at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)</div><div>        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)</div><div>        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)</div><div>        at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)</div><div>        at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)</div><div>        at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)</div><div>        at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)</div><div>        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)</div><div>        at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)</div><div>        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)</div><div>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)</div><div>        at java.lang.Thread.run(Thread.java:745)</div><div>Caused by: org.keycloak.saml.common.exceptions.ProcessingException: javax.xml.crypto.dsig.XMLSignatureException: PL00100: Signing Process Failure:</div><div>        at org.keycloak.saml.processing.api.saml.v2.sig.SAML2Signature.signSAMLDocument(SAML2Signature.java:162)</div><div>        at org.keycloak.saml.BaseSAML2BindingBuilder.signDocument(BaseSAML2BindingBuilder.java:266)</div><div>        at org.keycloak.saml.BaseSAML2BindingBuilder$BasePostBindingBuilder.&lt;init&gt;(BaseSAML2BindingBuilder.java:145)</div><div>        at org.keycloak.protocol.saml.JaxrsSAML2BindingBuilder$PostBindingBuilder.&lt;init&gt;(JaxrsSAML2BindingBuilder.java:38)</div><div>        at org.keycloak.protocol.saml.JaxrsSAML2BindingBuilder.postBinding(JaxrsSAML2BindingBuilder.java:87)</div><div>        at org.keycloak.broker.saml.SAMLIdentityProvider.performLogin(SAMLIdentityProvider.java:119)</div><div>        ... 48 more</div><div>Caused by: javax.xml.crypto.dsig.XMLSignatureException: PL00100: Signing Process Failure:</div><div>        at org.keycloak.saml.common.DefaultPicketLinkLogger.signatureError(DefaultPicketLinkLogger.java:184)</div><div>        ... 54 more</div><div>Caused by: javax.xml.crypto.dsig.XMLSignatureException: java.security.InvalidKeyException: can&#39;t identify DSA private key.</div><div>        at org.apache.jcp.xml.dsig.internal.dom.DOMXMLSignature.sign(DOMXMLSignature.java:403)</div><div>        at org.keycloak.saml.processing.core.util.XMLSignatureUtil.signImpl(XMLSignatureUtil.java:624)</div><div>        at org.keycloak.saml.processing.core.util.XMLSignatureUtil.sign(XMLSignatureUtil.java:347)</div><div>        at org.keycloak.saml.processing.api.saml.v2.sig.SAML2Signature.sign(SAML2Signature.java:143)</div><div>        at org.keycloak.saml.processing.api.saml.v2.sig.SAML2Signature.signSAMLDocument(SAML2Signature.java:160)</div><div>        ... 53 more</div><div>Caused by: java.security.InvalidKeyException: can&#39;t identify DSA private key.</div><div>        at org.bouncycastle.jcajce.provider.asymmetric.dsa.DSAUtil.generatePrivateKeyParameter(Unknown Source)</div><div>        at org.bouncycastle.jcajce.provider.asymmetric.dsa.DSASigner.engineInitSign(Unknown Source)</div><div>        at java.security.Signature$Delegate.init(Signature.java:1152)</div><div>        at java.security.Signature$Delegate.chooseProvider(Signature.java:1112)</div><div>        at java.security.Signature$Delegate.engineInitSign(Signature.java:1176)</div><div>        at java.security.Signature.initSign(Signature.java:527)</div><div>        at org.apache.jcp.xml.dsig.internal.dom.DOMSignatureMethod.sign(DOMSignatureMethod.java:267)</div><div>        at org.apache.jcp.xml.dsig.internal.dom.DOMXMLSignature.sign(DOMXMLSignature.java:399)</div><div>        ... 57 more</div></div><div><br></div><div>I don&#39;t understand this error.</div></div>