Package org.bouncycastle.crypto.engines

Class XTEAEngine

java.lang.Object

org.bouncycastle.crypto.engines.XTEAEngine

All Implemented Interfaces:

BlockCipher

public class XTEAEngine
extends Object
implements BlockCipher

An XTEA engine.

Constructor Summary

Constructors

Constructor	Description
XTEAEngine()	Create an instance of the TEA encryption algorithm and set some defaults

Method Summary

Modifier and Type	Method	Description
String	getAlgorithmName()	Return the name of the algorithm the cipher implements.
int	getBlockSize()	Return the block size for this cipher (in bytes).
void	init(boolean forEncryption, CipherParameters params)	initialise
int	processBlock(byte[] in, int inOff, byte[] out, int outOff)	Process one block of input from the array in and write it to the out array.
void	reset()	Reset the cipher.

Methods inherited from class java.lang.Object

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

Constructor Details

XTEAEngine

public XTEAEngine()

Create an instance of the TEA encryption algorithm and set some defaults

Method Details

getAlgorithmName

public String getAlgorithmName()

Description copied from interface: BlockCipher

Return the name of the algorithm the cipher implements.

Specified by:

getAlgorithmName in interface BlockCipher

Returns:

the name of the algorithm the cipher implements.

getBlockSize

public int getBlockSize()

Description copied from interface: BlockCipher

Return the block size for this cipher (in bytes).

Specified by:

getBlockSize in interface BlockCipher

Returns:

the block size for this cipher in bytes.

init

public void init(boolean forEncryption,
 CipherParameters params)

initialise

Specified by:

init in interface BlockCipher

Parameters:

forEncryption - whether or not we are for encryption.

params - the parameters required to set up the cipher.

Throws:

IllegalArgumentException - if the params argument is inappropriate.

processBlock

public int processBlock(byte[] in,
 int inOff,
 byte[] out,
 int outOff)

Description copied from interface: BlockCipher

Process one block of input from the array in and write it to the out array.

Specified by:

processBlock in interface BlockCipher

Parameters:

in - the array containing the input data.

inOff - offset into the in array the data starts at.

out - the array the output data will be copied into.

outOff - the offset into the out array the output will start at.

Returns:

the number of bytes processed and produced.

reset

public void reset()

Description copied from interface: BlockCipher

Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).

Specified by:

reset in interface BlockCipher