wussykye- are you sure the jars are located in <java_home>/jre/bin and not <java_home>/jre/lib You might want to look at the following things in your setup: 1) Make sure the <java_home>/jre/lib/security/java.security file has the proper priority order for the JCE providers you are trying to use 2) If you are trying to use the SUN_JCE provider make sure its provider is available in the <java_home>/jre/lib/ext directory (sunjce_provider.jar) If you are trying to use the built-in JCE providers I don't think you need to include the jar files in the EJB/EAR module. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3956811#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...