demo.smime.ess
Class TripleWrappingDemo

java.lang.Object
  demo.smime.ess.TripleWrappingDemo

public class TripleWrappingDemo
extends java.lang.Object

An ESS triple wrapping demo. Creates a RFC2634 ESS triple wrapped (signed - encrypted - signed) message and subsequently parses it to decrypt the layer and verify the signatures.

To run this demo the following packages are required:

• iaik_cms.jar
• iaik_jce(_full).jar (IAIK-JCE Core Crypto Library).
• mail.jar (JavaMail API).
• activation.jar (Java Activation Framework; required for JDK versions < 1.6).

See Also:

EncryptedContent, SignedContent

Constructor Summary

TripleWrappingDemo()
Empty default constructor.

Method Summary

javax.mail.Message	createMessage(javax.mail.Session session, java.lang.String subject) Creates a MIME message container with the given subject for the given session.
static void	main(java.lang.String[] argv) Main method.
void	start() Starts the demo.
javax.mail.Message	tripleWrap(javax.mail.Session session, javax.activation.DataHandler dataHandler, boolean innerImplicit, boolean outerImplicit, boolean differentOuterSigner) Creates a triple wrapped (signed - encrypted - signed) message.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TripleWrappingDemo

public TripleWrappingDemo()

Empty default constructor. Reads all required keys and certificates from the demo keystore (created by running @link demo.keystore.SetupCMSKeySrore) stored at "cms.keystore" in your current working directoy.

Method Detail

start

public void start()
           throws java.io.IOException

Starts the demo.

Throws:

java.io.IOException - if an I/O related error occurs

createMessage

public javax.mail.Message createMessage(javax.mail.Session session,
                                        java.lang.String subject)
                                 throws javax.mail.MessagingException

Creates a MIME message container with the given subject for the given session.

Parameters:

session - the mail sesion

subject - the subject of the message

Returns:

the MIME message with FROM, TO, DATE and SUBJECT headers (without content)

Throws:

javax.mail.MessagingException - if the message cannot be created

tripleWrap

public javax.mail.Message tripleWrap(javax.mail.Session session,
                                     javax.activation.DataHandler dataHandler,
                                     boolean innerImplicit,
                                     boolean outerImplicit,
                                     boolean differentOuterSigner)
                              throws java.lang.Exception

Creates a triple wrapped (signed - encrypted - signed) message.

Parameters:

session - the Session

dataHandler - the data handler providing the raw content

innerImplicit - whether to sign the inner content implicitly or explicitly

outerImplicit - whether to sign the outer content implicitly or explicitly

differentOuterSigner - whether to simulate a different outer signer receiving the signed and encrypted message and adding an outer layer

Returns:

the triple wrapped message

Throws:

java.lang.Exception

main

public static void main(java.lang.String[] argv)
                 throws java.io.IOException

Main method.

Throws:

java.io.IOException