Package 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

Constructors

Constructor	Description
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

Modifier and Type	Method	Description
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)
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 Details

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 Details

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 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