Bouncy Castle Provider 1.77 · org.bouncycastle.crypto.fpe.FPEEngine

Modifier and Type	Field and Description
protected final BlockCipher	baseCipher
protected boolean	forEncryption
protected FPEParameters	fpeParameters

Access	Constructor and Description
protected	FPEEngine(BlockCipher baseCipher)

Method Summary

Modifier and Type	Method and Description
protected abstract int	decryptBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)
protected abstract int	encryptBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)
public abstract String	Returns: the name of the algorithm the cipher implements. getAlgorithmName() Return the name of the algorithm the cipher implements.
public abstract void	init(boolean true if initialising for encryption, false otherwise. forEncryption, CipherParameters the key and other parameters to use to set the engine up. parameters) Initialize the FPE engine for encryption/decryption.
public int	Returns: number of bytes output. processBlock(byte[] input data. inBuf, int offset in input data to start at. inOff, int number of bytes to process. length, byte[] destination buffer. outBuf, int offset to start writing at in destination buffer. outOff) Process length bytes from inBuf, writing the output to outBuf.
protected static byte[]	toByteArray(short[] buf)
protected static short[]	toShortArray(byte[] buf)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

baseCipher	back to summary
protected final BlockCipher baseCipher

forEncryption	back to summary
protected boolean forEncryption

fpeParameters	back to summary
protected FPEParameters fpeParameters

FPEEngine	back to summary
protected FPEEngine(BlockCipher baseCipher)

decryptBlock	back to summary
protected abstract int decryptBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)

encryptBlock	back to summary
protected abstract int encryptBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)

getAlgorithmName	back to summary
public abstract String getAlgorithmName() Return the name of the algorithm the cipher implements. Returns:String the name of the algorithm the cipher implements.

getAlgorithmName

public abstract String getAlgorithmName()

Return the name of the algorithm the cipher implements.

init	back to summary
public abstract void init(boolean forEncryption, CipherParameters parameters) Initialize the FPE engine for encryption/decryption. Parameters forEncryption:boolean true if initialising for encryption, false otherwise. parameters:CipherParameters the key and other parameters to use to set the engine up.

init

public abstract void init(boolean forEncryption, CipherParameters parameters)

Initialize the FPE engine for encryption/decryption.

Parameters

forEncryption:boolean: true if initialising for encryption, false otherwise.
parameters:CipherParameters: the key and other parameters to use to set the engine up.

processBlock	back to summary
public int processBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff) Process length bytes from inBuf, writing the output to outBuf. Parameters inBuf:byte[] input data. inOff:int offset in input data to start at. length:int number of bytes to process. outBuf:byte[] destination buffer. outOff:int offset to start writing at in destination buffer. Returns:int number of bytes output.

processBlock

public int processBlock(byte[] inBuf, int inOff, int length, byte[] outBuf, int outOff)

Process length bytes from inBuf, writing the output to outBuf.

Parameters

Returns:int

number of bytes output.

toByteArray	back to summary
protected static byte[] toByteArray(short[] buf)

toShortArray	back to summary
protected static short[] toShortArray(byte[] buf)