be.SIRAPRISE.util

Class JCECipher

java.lang.Object

be.SIRAPRISE.util.ProprietaryOrJCECipher

be.SIRAPRISE.util.JCECipher

public class JCECipher
extends ProprietaryOrJCECipher

The JCECipher is a wrapper class around a JCE Cipher class.

Author:

Erwin Smout

Constructor Summary

Constructors

Constructor and Description
JCECipher(javax.crypto.Cipher cipher)

Method Summary

Modifier and Type	Method and Description
byte[]	decrypt(byte[] inputBytes) decrypts the given byte stream
byte[]	encrypt(byte[] bytes) Encrypts the given byte stream
void	generatePrivateAndPublicKey(ProprietaryOrJCECipherCallbackObject callbackObject) Generates or obtains all the private stuff that the encryption protocol needs to do encryption/decryption.
java.lang.String	getAlgorithm() Gets The algorithm name
byte[]	getPublishInfo() Gets a byte array containing all the specific info needed to set up en-/decryption.
void	setPublishedInfo(byte[] cipherInfo) Sets all the specific info needed to set up en-/decryption.

Methods inherited from class java.lang.Object

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

Constructor Detail

JCECipher

public JCECipher(javax.crypto.Cipher cipher)

Parameters:

cipher - -

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Description copied from class: ProprietaryOrJCECipher

Gets The algorithm name

Specified by:

getAlgorithm in class ProprietaryOrJCECipher

Returns:

The algorithm name

encrypt

public byte[] encrypt(byte[] bytes)
               throws java.security.InvalidKeyException,
                      javax.crypto.IllegalBlockSizeException,
                      javax.crypto.BadPaddingException,
                      javax.crypto.BadPaddingException

Description copied from class: ProprietaryOrJCECipher

Encrypts the given byte stream

Specified by:

encrypt in class ProprietaryOrJCECipher

Parameters:

bytes - the sequence of input bytes to be encrypted

Returns:

the encrypted byte sequence

Throws:

java.security.InvalidKeyException - -

javax.crypto.IllegalBlockSizeException - -

javax.crypto.BadPaddingException - -

decrypt

public byte[] decrypt(byte[] inputBytes)
               throws java.security.InvalidKeyException,
                      javax.crypto.IllegalBlockSizeException,
                      javax.crypto.BadPaddingException,
                      javax.crypto.BadPaddingException

Description copied from class: ProprietaryOrJCECipher

decrypts the given byte stream

Specified by:

decrypt in class ProprietaryOrJCECipher

Parameters:

inputBytes - the sequence of bytes to be decrypted

Returns:

The decryptes byte sequence

Throws:

java.security.InvalidKeyException - -

javax.crypto.IllegalBlockSizeException - -

javax.crypto.BadPaddingException - -

generatePrivateAndPublicKey

public void generatePrivateAndPublicKey(ProprietaryOrJCECipherCallbackObject callbackObject)

Description copied from class: ProprietaryOrJCECipher

Generates or obtains all the private stuff that the encryption protocol needs to do encryption/decryption.

Specified by:

generatePrivateAndPublicKey in class ProprietaryOrJCECipher

Parameters:

callbackObject - the callback Object (e.g. containing the server's Connection handler) that is available for directing callback methods to.

getPublishInfo

public byte[] getPublishInfo()

Description copied from class: ProprietaryOrJCECipher

Gets a byte array containing all the specific info needed to set up en-/decryption. The contents/layout of the bytes are specific to each cipher algorithm.

Specified by:

getPublishInfo in class ProprietaryOrJCECipher

Returns:

a byte array containing all the specific info needed to set up en-/decryption.

setPublishedInfo

public void setPublishedInfo(byte[] cipherInfo)

Description copied from class: ProprietaryOrJCECipher

Sets all the specific info needed to set up en-/decryption. The contents/layout of the bytes are specific to each cipher algorithm.

Specified by:

setPublishedInfo in class ProprietaryOrJCECipher

Parameters:

cipherInfo - The byte array containing all the needed info to set up the Cipher