demo.smime.basic
Class SMimeV4Demo

java.lang.Object
  demo.smime.basic.SMimeV4Demo

public class SMimeV4Demo
extends java.lang.Object

This class demonstrates the usage of the IAIK S/MIME implementation. It shows how to create signed and/or encrypted S/MIMEv4 messages and how to parse them and verify the signatures and decrypt the content, respectively.

To run this demo the following packages are required:

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

You also will need the IAIK-JCE library, iaik_jce(_full).jar.

This demo uses RSA both for signing an encryption. Look at the demos in package demo.smime.ecc for examples based on elliptic curve cryptography.

Constructor Summary

SMimeV4Demo()
Default constructor.

Method Summary

javax.mail.Message	createAuthEncryptedMessage(javax.mail.Session session, iaik.asn1.structures.AlgorithmID contentEA, int keyLength) Creates an authenticated encrypted message.
javax.mail.Message	createCertsOnlyMessage(javax.mail.Session session) Creates a certs-only message.
javax.mail.Message	createCertsOnlyMultiPartMessage(javax.mail.Session session) Creates a certs-only message where the certificate list is transferred as attachment.
javax.mail.Message	createCompressedMessage(javax.mail.Session session, javax.activation.DataHandler dataHandler, iaik.asn1.structures.AlgorithmID algorithm) Creates a compressed message.
javax.mail.Message	createEncryptedMessage(javax.mail.Session session, iaik.asn1.structures.AlgorithmID contentEA, int keyLength) Creates an encrypted message.
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.
javax.mail.Message	createPKCS10Message(javax.mail.Session session) Creates a PKCS#10 certificate request message.
javax.mail.Message	createPKCS10MultiPartMessage(javax.mail.Session session) Creates a PKCS#10 message where the certificate request is transferred as attachment.
javax.mail.Message	createPlainMessage(javax.mail.Session session, javax.activation.DataHandler dataHandler) Creates a simple plain (neither signed nor encrypted) message.
javax.mail.Message	createSignedAndEncryptedMessage(javax.mail.Session session, iaik.asn1.structures.AlgorithmID contentEA, int keyLength, javax.activation.DataHandler dataHandler, boolean implicit, boolean authEncrypt) Creates a signed and encrypted message.
javax.mail.Message	createSignedMessage(javax.mail.Session session, javax.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

SMimeV4Demo

public SMimeV4Demo()

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

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

createPlainMessage

public javax.mail.Message createPlainMessage(javax.mail.Session session,
                                             javax.activation.DataHandler dataHandler)
                                      throws javax.mail.MessagingException

Creates a simple plain (neither signed nor encrypted) message.

Parameters:

session - the mail session

dataHandler - the content of the message

Returns:

the plain message

Throws:

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

createSignedAndEncryptedMessage

public javax.mail.Message createSignedAndEncryptedMessage(javax.mail.Session session,
                                                          iaik.asn1.structures.AlgorithmID contentEA,
                                                          int keyLength,
                                                          javax.activation.DataHandler dataHandler,
                                                          boolean implicit,
                                                          boolean authEncrypt)
                                                   throws javax.mail.MessagingException

Creates a signed and encrypted message.

Parameters:

session - the mail session

contentEA - the content encryption algorithm to be used

keyLength - the length of the secret content encryption key to be created and used

dataHandler - the content of the message to be signed and encrypted

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

authEncrypt - whether to create an authenticated encrypted message

Returns:

the signed and encrypted message

Throws:

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

createSignedMessage

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

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

createEncryptedMessage

public javax.mail.Message createEncryptedMessage(javax.mail.Session session,
                                                 iaik.asn1.structures.AlgorithmID contentEA,
                                                 int keyLength)
                                          throws javax.mail.MessagingException

Creates an encrypted message.

Parameters:

session - the mail session

contentEA - the content encryption algorithm to be used

keyLength - the length of the secret content encryption key to be created and used

Returns:

the encrypted message

Throws:

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

createAuthEncryptedMessage

public javax.mail.Message createAuthEncryptedMessage(javax.mail.Session session,
                                                     iaik.asn1.structures.AlgorithmID contentEA,
                                                     int keyLength)
                                              throws javax.mail.MessagingException

Creates an authenticated encrypted message.

Parameters:

session - the mail session

contentEA - the content encryption algorithm to be used

keyLength - the length of the secret content encryption key to be created and used

Returns:

the encrypted message

Throws:

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

createCertsOnlyMessage

public javax.mail.Message createCertsOnlyMessage(javax.mail.Session session)
                                          throws javax.mail.MessagingException

Creates a certs-only message.

Parameters:

session - the mail session

Returns:

the certs-only message

Throws:

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

createCertsOnlyMultiPartMessage

public javax.mail.Message createCertsOnlyMultiPartMessage(javax.mail.Session session)
                                                   throws javax.mail.MessagingException

Creates a certs-only message where the certificate list is transferred as attachment.

Parameters:

session - the mail session

Returns:

the certs-only message

Throws:

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

createCompressedMessage

public javax.mail.Message createCompressedMessage(javax.mail.Session session,
                                                  javax.activation.DataHandler dataHandler,
                                                  iaik.asn1.structures.AlgorithmID algorithm)
                                           throws javax.mail.MessagingException

Creates a compressed message.

Parameters:

session - the mail session

dataHandler - the datahandler supplying the content to be compressed

algorithm - the compression algorithm to be used

Returns:

the compressed message

Throws:

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

createPKCS10Message

public javax.mail.Message createPKCS10Message(javax.mail.Session session)
                                       throws javax.mail.MessagingException

Creates a PKCS#10 certificate request message.

Parameters:

session - the mail session

Returns:

the PKCS#10 certificate request message

Throws:

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

createPKCS10MultiPartMessage

public javax.mail.Message createPKCS10MultiPartMessage(javax.mail.Session session)
                                                throws javax.mail.MessagingException

Creates a PKCS#10 message where the certificate request is transferred as attachment.

Parameters:

session - the mail session

Returns:

the PKCS#10 certificate request message

Throws:

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

main

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

The main method.

Throws:

java.io.IOException