be.SIRAPRISE.util

Class ProprietaryOrJCECipher

java.lang.Object

be.SIRAPRISE.util.ProprietaryOrJCECipher

Direct Known Subclasses:

JCECipher, SPE

public abstract class ProprietaryOrJCECipher
extends java.lang.Object

Author:

Erwin Smout

Constructor Summary

Constructors

Constructor and Description
ProprietaryOrJCECipher()

Method Summary

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

ProprietaryOrJCECipher

public ProprietaryOrJCECipher()

Method Detail

decrypt

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

decrypts the given byte stream

Parameters:

inputBytes - the sequence of bytes to be decrypted

Returns:

The decryptes byte sequence

Throws:

java.security.InvalidKeyException - -

javax.crypto.BadPaddingException - -

javax.crypto.BadPaddingException - -

javax.crypto.IllegalBlockSizeException - -

encrypt

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

Encrypts the given byte stream

Parameters:

bytes - the sequence of input bytes to be encrypted

Returns:

the encrypted byte sequence

Throws:

java.security.InvalidKeyException - -

javax.crypto.BadPaddingException - -

javax.crypto.IllegalBlockSizeException - -

getAlgorithm

public abstract java.lang.String getAlgorithm()

Gets The algorithm name

Returns:

The algorithm name

generatePrivateAndPublicKey

public abstract void generatePrivateAndPublicKey(ProprietaryOrJCECipherCallbackObject callbackObject)

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

Parameters:

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

getPublishInfo

public abstract byte[] getPublishInfo()

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.

Returns:

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

setPublishedInfo

public abstract void setPublishedInfo(byte[] cipherInfo)

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

Parameters:

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