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
<jobbob@yahoo.com>”

publicKeyRingFileName=“C:vaultkeysjoebob_public.gpg”

secretAliasId=“-4553241976692078076”

secretKeyRingFileName=“C:vaultkeysmy_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
<jobbob@yahoo.com>”

publicKeyRingFileName=“C:vaultkeysjoebob_public.gpg”

secretKeyRingFileName=“C:vaultkeysjoebob_private.gpg”

secretAliasId=“-5394156070371012997”

secretPassphrase=“joebob12” />

</encryption:config>

Flow Elements:

<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>

——————————————————

./src/test/java/EncryptFlowTest.java

——————————————————

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”;

}

——————————————————

./src/test/resources/log4j.properties

——————————————————

# 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