demo.smime.basic

Class SMimeV3SHA2withDSADemo

java.lang.Object

demo.smime.basic.SMimeV3SHA2withDSADemo

public class SMimeV3SHA2withDSADemo
extends java.lang.Object

This class demonstrates the usage of the IAIK S/MIME implementation with the SHA2withDSA signature algorithm (FIPS 186-3). It shows how to create signed S/MIMEv3 messages and how to parse them and verify the signature.

To run this demo the following packages are required:

• iaik_cms.jar (IAIK-CMS/SMIME)
• iaik_jce(_full).jar (IAIK-JCE Core Crypto Library).
• Jakarta/Angus Mail
• Jakarta Activation Framework

Constructor Summary

Constructors

Constructor and Description
SMimeV3SHA2withDSADemo() Default constructor.

Method Summary

Modifier and Type	Method and Description
jakarta.mail.Message	createMessage(jakarta.mail.Session session, java.lang.String subject) Creates a MIME message container with the given subject for the given session.
jakarta.mail.Message	createSignedMessage(jakarta.mail.Session session, jakarta.activation.DataHandler dataHandler, boolean implicit, iaik.asn1.structures.AlgorithmID digestAlgorithm, iaik.asn1.structures.AlgorithmID signatureAlgorithm) Creates a signed message.
static void	main(java.lang.String[] argv) The main method.
void	start() Starts the demo.

Methods inherited from class java.lang.Object

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

Constructor Detail

SMimeV3SHA2withDSADemo

public SMimeV3SHA2withDSADemo()

Default constructor. Reads certificates and keys from the demo keystore.

Method Detail

start

public void start()
           throws java.io.IOException

Starts the demo.

Throws:

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

createSignedMessage

public jakarta.mail.Message createSignedMessage(jakarta.mail.Session session,
                                                jakarta.activation.DataHandler dataHandler,
                                                boolean implicit,
                                                iaik.asn1.structures.AlgorithmID digestAlgorithm,
                                                iaik.asn1.structures.AlgorithmID signatureAlgorithm)
                                         throws jakarta.mail.MessagingException

Creates a signed message.

Parameters:

session - the mail session

dataHandler - the content of the message to be signed

implicit - whether to use implicit (application/pkcs7-mime) or explicit (multipart/signed) signing

digestAlgorithm - the digest algorithm to be used

signatureAlgorithm - the signature algorithm to be used

Returns:

the signed message

Throws:

jakarta.mail.MessagingException - if an error occurs when creating the message

createMessage

public jakarta.mail.Message createMessage(jakarta.mail.Session session,
                                          java.lang.String subject)
                                   throws jakarta.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:

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

main

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

The main method.

Throws:

java.io.IOException