Example PGP encryption and decryption using MuleStudio 3.5

PGP_PublicEncrypter – Global Encryption Element

                      

In this case we are using our Secret Key, Secret Alias ID, and Secret Passphrase to sign the encrypted message.   We use the recipient’s (in this case “Joe Bob”) Public Key and Principal Email.

PGP_PrivateDecrypter – Global Encryption Element

                       

Global Elements:

    <encryption:config name="PGP_PublicEncrypter"

defaultEncrypter="PGP_ENCRYPTER"

                     doc:name="PGP_PublicEncrypter">

        <encryption:pgp-encrypter-config

                     principal="Joe Bob &lt;jobbob@yahoo.com&gt;"

publicKeyRingFileName="C:\vault\keys\joebob_public.gpg"

secretAliasId="-4553241976692078076"

                     secretKeyRingFileName="C:\vault\keys\my_secret.gpg"

                     secretPassphrase="MySecretPass"/>

    </encryption:config>

   

    <encryption:config name="PGP_PrivateDecrypter"

defaultEncrypter="PGP_ENCRYPTER"

                     doc:name="PGP_PrivateDecrypter">

        <encryption:pgp-encrypter-config

principal="Joe Bob &lt;jobbob@yahoo.com&gt;"

publicKeyRingFileName="C:\vault\keys\joebob_public.gpg"

                     secretKeyRingFileName="C:\vault\keys\joebob_private.gpg"

                     secretAliasId="-5394156070371012997"

                     secretPassphrase="joebob12" />

    </encryption:config>

Flow Elements:

<flow name="flowEncrypt" doc:name="flowEncrypt">

<vm:inbound-endpoint exchange-pattern="request-response" path="queueEncrypt"

       doc:name="vmEncrypt"/>

       

<logger message="#[payload]" level="INFO" category="### INPUT LOGGER ###"

       doc:name="Logger"/>

<encryption:encrypt using="PGP_ENCRYPTER" config-ref="PGP_PublicEncrypter"

       doc:name="Encrypter"/>

       

<logger message="#[payload]" level="INFO" category="### ENCRYPTED LOGGER ###"

       doc:name="Logger"/>

       

<encryption:decrypt using="PGP_ENCRYPTER" config-ref="PGP_PrivateDecrypter"

doc:name="Decrypter"/>

       

<logger message="#[payload]" level="INFO" category="### DECRYPTED LOGGER ###"

       doc:name="Logger"/>

</flow>

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./src/test/java/EncryptFlowTest.java

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import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertTrue;

import java.io.File;

import java.io.IOException;

import java.util.Collection;

import java.util.HashMap;

import java.util.Map;

import org.apache.commons.io.FileUtils;

import org.junit.Test;

import org.mule.DefaultMuleMessage;

import org.mule.api.MuleException;

import org.mule.api.MuleMessage;

import org.mule.api.client.MuleClient;

import org.mule.api.transport.PropertyScope;

import org.mule.tck.junit4.FunctionalTestCase;

public class EncryptFlowTest extends FunctionalTestCase

{

   @Test

   public void testEncryptFlow () throws MuleException

   {

         HashMap<String, Object> propsMap = new HashMap<String, Object>();  

        

      MuleClient client = muleContext.getClient();

      String payloadSend = new String("The quick brown fox jumped over the lazy dog");

      MuleMessage reply = client.send ("vm://queueEncrypt", payloadSend, propsMap, 5000);

      assertNotNull(reply);

      assertNotNull(reply.getPayload());

      assertTrue(reply.getPayload() instanceof String );

      String result = (String)reply.getPayload();

      assertEquals(result, payloadSend);

   }

  

  

   @Override

   protected String getConfigResources()

   {

      return "src/main/app/pgpexample.xml";

   }

}

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./src/test/resources/log4j.properties

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# Default log level

log4j.rootCategory=INFO, console

log4j.appender.console=org.apache.log4j.ConsoleAppender

log4j.appender.console.layout=org.apache.log4j.PatternLayout

log4j.appender.console.layout.ConversionPattern=%-5p %d [%t] %c: %m%n

################################################

# You can set custom log levels per-package here

################################################

# Reduce noise for Mule High Availability

log4j.logger.com.gigaspaces=ERROR

log4j.logger.com.j_spaces=ERROR

log4j.logger.com.sun.jini=ERROR

log4j.logger.net.jini=ERROR

# CXF is used heavily by Mule for web services

log4j.logger.org.apache.cxf=WARN

# Apache Commons tend to make a lot of noise which can clutter the log.

log4j.logger.org.apache=WARN

# Reduce startup noise

log4j.logger.org.springframework.beans.factory=WARN

# Mule classes

log4j.logger.org.mule=INFO

log4j.logger.com.mulesoft=INFO

# Your custom classes

log4j.logger.com.mycompany=DEBUG