demo.cms.envelopedData
Class TripleDESEnvelopedDataDemo

java.lang.Object
  demo.cms.envelopedData.EnvelopedDataDemo
      demo.cms.envelopedData.TripleDESEnvelopedDataDemo

public class TripleDESEnvelopedDataDemo
extends EnvelopedDataDemo

Demonstrates the usage of class EnvelopedDataStream and EnvelopedData for encrypting data using the CMS type EnvelopedData with the TripleDES (DES-EDE3) cipher algorithm.
TripleDES is used for both content encryption (according to RFC 3370) and content encryption key wrapping (according to RFC 3217).

This demo creates an EnvelopedData object and subsequently shows several ways that may be used for decrypting the content for some particular recipient.

Keys and certificates are retrieved from the demo KeyStore ("cms.keystore") which has to be located in your current working directory and may be created by running the SetupCMSKeyStore program.

See Also:

EnvelopedDataStream, EnvelopedData, RecipientInfo, KeyTransRecipientInfo, KeyAgreeRecipientInfo,

Note that the usage of TripleDES has been deprecated by S/MIMEv4 (RFC 8551), see {@link AESEnvelopedDataDemo AESEnvelopedDataDemo} for an AES based demo.

Constructor Summary

TripleDESEnvelopedDataDemo()
Creates an TripleDESEnvelopedDataDemo and setups the demo certificates.

Method Summary

static void

main(java.lang.String[] argv) Main method.

Methods inherited from class demo.cms.envelopedData.EnvelopedDataDemo

createEnvelopedData, createEnvelopedDataStream, createRecipients, getEnvelopedData, getEnvelopedData, getEnvelopedData, getEnvelopedDataStream, getEnvelopedDataStream, getEnvelopedDataStream, parseEnvelopedDataWithRecipientCertOrKEKId, parseEnvelopedDataWithRecipientIdentifier, parseEnvelopedDataWithRecipientInfoIndex, start

Methods inherited from class java.lang.Object

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

Constructor Detail

TripleDESEnvelopedDataDemo

public TripleDESEnvelopedDataDemo()
                           throws java.io.IOException,
                                  java.security.NoSuchAlgorithmException

Creates an TripleDESEnvelopedDataDemo and setups the demo certificates.
Keys and certificates are retrieved from the demo KeyStore ("cms.keystore") file which has to be located in your current working directory and may be created by running SetupCMSKeyStore.
TripleDES and TripleDES KeyWrap are used for content encryption and content encryption key wrapping.

Throws:

java.io.IOException - if an file read error occurs

java.security.NoSuchAlgorithmException - if the requested TripleDES or TripleDES KeyWrap algorithms are not supported

Method Detail

main

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

Main method.

Throws:

java.io.IOException - if an I/O error occurs when reading required keys and certificates from files

java.lang.Exception