org.bouncycastle.crypto.fpe
Class FPEFF3_1Engine

java.lang.Object
  org.bouncycastle.crypto.fpe.FPEEngine
      org.bouncycastle.crypto.fpe.FPEFF3_1Engine

public class FPEFF3_1Engine

extends FPEEngine

NIST SP 800-38G, FF3-1 format preserving encryption.

Field Summary

Fields inherited from class org.bouncycastle.crypto.fpe.FPEEngine

baseCipher, forEncryption, fpeParameters

Constructor Summary

FPEFF3_1Engine()
Base constructor - the engine will use AES.

FPEFF3_1Engine(BlockCipher baseCipher)
Build the engine using the specified 128 bit block cipher.

Method Summary

protected int	decryptBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)
protected int	encryptBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)
java.lang.String	getAlgorithmName() Return the name of the algorithm the cipher implements.
void	init(boolean forEncryption, CipherParameters parameters) Initialize the FPE engine for encryption/decryption.

Methods inherited from class org.bouncycastle.crypto.fpe.FPEEngine

processBlock, toByteArray, toShortArray

Methods inherited from class java.lang.Object

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

Constructor Detail

FPEFF3_1Engine

public FPEFF3_1Engine()

Base constructor - the engine will use AES.

FPEFF3_1Engine

public FPEFF3_1Engine(BlockCipher baseCipher)

Build the engine using the specified 128 bit block cipher.

Parameters:

baseCipher - cipher to base the FPE algorithm on.

Method Detail

init

public void init(boolean forEncryption,
                 CipherParameters parameters)

Description copied from class: FPEEngine

Initialize the FPE engine for encryption/decryption.

Specified by:

init in class FPEEngine

Parameters:

forEncryption - true if initialising for encryption, false otherwise.

parameters - the key and other parameters to use to set the engine up.

getAlgorithmName

public java.lang.String getAlgorithmName()

Description copied from class: FPEEngine

Return the name of the algorithm the cipher implements.

Specified by:

getAlgorithmName in class FPEEngine

Returns:

the name of the algorithm the cipher implements.

encryptBlock

protected int encryptBlock(byte[] inBuf,
                           int inOff,
                           int length,
                           byte[] outBuf,
                           int outOff)

Specified by:

encryptBlock in class FPEEngine

decryptBlock

protected int decryptBlock(byte[] inBuf,
                           int inOff,
                           int length,
                           byte[] outBuf,
                           int outOff)

Specified by:

decryptBlock in class FPEEngine