demo.cms.encryptedData

Class EncryptedDataOutputStreamDemo

java.lang.Object

demo.cms.encryptedData.EncryptedDataOutputStreamDemo

public class EncryptedDataOutputStreamDemo
extends java.lang.Object

Demonstrates the usage of class EncryptedDataOutputStream for PBE encrypting data using the CMS type EnryptedData.

Constructor Summary

Constructors

Constructor and Description
EncryptedDataOutputStreamDemo() Default constructor.

Method Summary

Modifier and Type	Method and Description
byte[]	createEncryptedData(byte[] message, char[] password) Creates a CMS EncryptedData and wraps it into a ContentInfo.
byte[]	getEncryptedData(byte[] encoding, char[] password) Decrypts the encrypted content of the given EncryptedData object.
static void	main(java.lang.String[] argv) 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

EncryptedDataOutputStreamDemo

public EncryptedDataOutputStreamDemo()

Default constructor.

Method Detail

createEncryptedData

public byte[] createEncryptedData(byte[] message,
                                  char[] password)
                           throws iaik.cms.CMSException,
                                  java.io.IOException

Creates a CMS EncryptedData and wraps it into a ContentInfo.

Parameters:

message - the message to be encrypted, as byte representation

Returns:

the encoded EncryptedData object just created, wrapped into a ContentInfo

Throws:

iaik.cms.CMSException - if the EncryptedData object cannot be created

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

getEncryptedData

public byte[] getEncryptedData(byte[] encoding,
                               char[] password)
                        throws iaik.cms.CMSException,
                               java.io.IOException

Decrypts the encrypted content of the given EncryptedData object.

Parameters:

encoding - the encoded EncryptedData object, wrapped in a ContentInfo

password - the password to decrypt the message

Returns:

the recovered message, as byte array

Throws:

iaik.cms.CMSException - if the message cannot be recovered

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

start

public void start()

Starts the demo.

main

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

Main method.

Throws:

java.lang.Exception - if an some error occurs