Accessing_EJB3s_over_SSL

Version 6

    EJB3 over SSL

    This tutorial shows you how to invoke remote EJBs over an SSL connection.

     

    Setting up SSL for use in EJB3 involves creating a keystore and making sure the correct transport

    is available in the EJB3 configuration. After which you only have to use the RemoteBinding annotation

    with a clientBindUrl to make sure the bean is called through SSL.

     

    This tutorial assumes you've setup JBoss 4.x with EJB3 support. Make sure the enviroment variable

    JBOSS_HOME refers to the installation directory.

     

    Creating a keystore

    For SSL to work we need to create a public/private key pair, which will be stored in a keystore. Generate this using the genkey command that comes with the JDK.

     

       $ cd $JBOSS_HOME/server/default/conf/
       $ keytool -genkey -alias ejb3-ssl -keypass opensource -keystore localhost.keystore
       Enter keystore password:  opensource
       What is your first and last name?
         [Unknown]:
       What is the name of your organizational unit?
         [Unknown]:
       What is the name of your organization?
         [Unknown]:
       What is the name of your City or Locality?
         [Unknown]:
       What is the name of your State or Province?
         [Unknown]:
       What is the two-letter country code for this unit?
         [Unknown]:
       Is CN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown correct?
         [no]:  yes
    

     

    Since we have not signed our certificate through any certification authoritiy, we also need to create a truststore for the client, explicitly saying that we trust the certificate we just created. The first step is to export the certificate using the JDK keytool:

     

       $ keytool -export -alias ejb3-ssl -file mycert.cer -keystore localhost.keystore
       Enter keystore password:  opensource
       Certificate stored in file <mycert.cer>
    

     

     

    Then we need to create the truststore if it does not exist and import the certificate into the trueststore:

     

       $ keytool -import -alias ejb3-ssl -file mycert.cer -keystore localhost.truststore
       Enter keystore password:  opensource
       Owner: CN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown
       Issuer: CN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown
       Serial number: 43bff927
       Valid from: Sat Jan 07 18:23:51 CET 2006 until: Fri Apr 07 19:23:51 CEST 2006
       Certificate fingerprints:
                MD5:  CF:DC:71:A8:F4:EA:8F:5A:E9:94:E3:E6:5B:A9:C8:F3
                SHA1: 0E:AD:F3:D6:41:5E:F6:84:9A:D1:54:3D:DE:A9:B2:01:28:F6:7C:26
       Trust this certificate? [no]:  yes
       Certificate was added to keystore 
    

     

     

    Setting up the transport

    To setup the transport open $JBOSS_HOME/server/default/deploy/ejb3.deployer/META-INF/jboss-service.xml in your

    favorite text editor. Add the following mbean to it:

     

      
       <mbean code="org.jboss.remoting.transport.Connector"
          name="jboss.remoting:type=Connector,transport=socket3843,handler=ejb3">
          <depends>jboss.aop:service=AspectDeployer</depends>
          <attribute name="InvokerLocator">sslsocket://0.0.0.0:3843</attribute>
          <attribute name="Configuration">
             <handlers>
                <handler subsystem="AOP">org.jboss.aspects.remoting.AOPRemotingInvocationHandler</handler>
             </handlers>
          </attribute>
       </mbean>
    

     

     

    Starting JBoss

    We need to tell JBoss Remoting where to find the keystore to be used for SSl and its password. This is done using

    the javax.net.ssl.keyStore and javax.net.ssl.keyStorePassword=opensource system properties when starting JBoss, as

    the following example shows:

     

        $ cd $JBOSS_HOME/bin
        $ ./run.sh -Djavax.net.ssl.keyStore=../server/default/conf/localhost.keystore -Djavax.net.ssl.keyStorePassword=opensource
    

     

    Creating your beans

    Create your EJBs as usual and add the following annotation to bind it to the SSL invoker.

     

    import org.jboss.annotation.ejb.RemoteBinding;
    
    @RemoteBinding(clientBindUrl="sslsocket://0.0.0.0:3843")
    

     

    For the purpose this tutorial an example bean is provided (see src/org/jboss/tutorial/ssl/bean/CalculatorBean.java).

    To compile and deploy the example simple execute ant ejbjar.

     

    Running your client

    While making sure all the correct libraries are on the classpath we can run the provided client.

     

        $ java -Djavax.net.ssl.trustStore=$JBOSS_HOME/server/default/conf/localhost.truststore -Djavax.net.ssl.trustStorePassword=opensource org.jboss.tutorial.ssl.client.Client
    

     

    Or better yet, just run ant run.