javax.crypto
Class NullCipherSpi

java.lang.Object
  javax.crypto.CipherSpi
      javax.crypto.NullCipherSpi

public class NullCipherSpi
extends CipherSpi

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Version:

"$Id: NullCipherSpi.java 1913 2007-08-08 02:41:53Z jpeters $"

Author:

Patric Kabus, Jan Peters

Constructor Summary

NullCipherSpi()
Creates a new NullCipherSpi object.

Method Summary

private void	checkInputParameters(byte[] input, int inputOffset, int inputLen) DOCUMENT ME!
private void	checkOutputParameters(byte[] output, int outputOffset) DOCUMENT ME!
byte[]	engineDoFinal(byte[] input, int inputOffset, int inputLen) DOCUMENT ME!
int	engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) DOCUMENT ME!
int	engineGetBlockSize() DOCUMENT ME!
byte[]	engineGetIV() DOCUMENT ME!
int	engineGetOutputSize(int inputLen) DOCUMENT ME!
AlgorithmParameters	engineGetParameters() DOCUMENT ME!
void	engineInit(int opmode, Key key, AlgorithmParameterSpec params, SecureRandom random) DOCUMENT ME!
protected void	engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random) DOCUMENT ME!
protected void	engineInit(int opmode, Key key, SecureRandom random) DOCUMENT ME!
protected void	engineSetMode(String mode) DOCUMENT ME!
protected void	engineSetPadding(String padding) DOCUMENT ME!
byte[]	engineUpdate(byte[] input, int inputOffset, int inputLen) DOCUMENT ME!
int	engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) DOCUMENT ME!

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineGetKeySize, engineUnwrap, engineUpdate, engineWrap

Methods inherited from class java.lang.Object

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

Constructor Detail

NullCipherSpi

public NullCipherSpi()

Creates a new NullCipherSpi object.

Method Detail

engineSetMode

protected void engineSetMode(String mode)
                      throws NoSuchAlgorithmException

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Specified by:

engineSetMode in class CipherSpi

Parameters:

mode -

Throws:

NoSuchAlgorithmException

engineSetPadding

protected void engineSetPadding(String padding)
                         throws NoSuchPaddingException

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Specified by:

engineSetPadding in class CipherSpi

Parameters:

padding -

Throws:

NoSuchPaddingException

engineGetBlockSize

public int engineGetBlockSize()

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Specified by:

engineGetBlockSize in class CipherSpi

Returns:

engineGetOutputSize

public int engineGetOutputSize(int inputLen)
                        throws IllegalStateException

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Specified by:

engineGetOutputSize in class CipherSpi

Parameters:

inputLen -

Returns:

Throws:

IllegalStateException

engineGetIV

public byte[] engineGetIV()

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Specified by:

engineGetIV in class CipherSpi

Returns:

engineGetParameters

public AlgorithmParameters engineGetParameters()

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Specified by:

engineGetParameters in class CipherSpi

Returns:

engineInit

protected void engineInit(int opmode,
                          Key key,
                          SecureRandom random)
                   throws InvalidKeyException

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Specified by:

engineInit in class CipherSpi

Parameters:

opmode -

key -

random -

Throws:

InvalidKeyException

engineInit

public void engineInit(int opmode,
                       Key key,
                       AlgorithmParameterSpec params,
                       SecureRandom random)
                throws InvalidKeyException,
                       InvalidAlgorithmParameterException

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Specified by:

engineInit in class CipherSpi

Parameters:

opmode -

key -

params -

random -

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineInit

protected void engineInit(int opmode,
                          Key key,
                          AlgorithmParameters params,
                          SecureRandom random)
                   throws InvalidKeyException,
                          InvalidAlgorithmParameterException

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Specified by:

engineInit in class CipherSpi

Parameters:

opmode -

key -

params -

random -

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineUpdate

public final byte[] engineUpdate(byte[] input,
                                 int inputOffset,
                                 int inputLen)
                          throws IllegalStateException

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Specified by:

engineUpdate in class CipherSpi

Parameters:

input -

inputOffset -

inputLen -

Returns:

Throws:

IllegalStateException

engineUpdate

public final int engineUpdate(byte[] input,
                              int inputOffset,
                              int inputLen,
                              byte[] output,
                              int outputOffset)
                       throws IllegalStateException,
                              ShortBufferException

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Specified by:

engineUpdate in class CipherSpi

Parameters:

input -

inputOffset -

inputLen -

output -

outputOffset -

Returns:

Throws:

IllegalStateException

ShortBufferException

engineDoFinal

public final byte[] engineDoFinal(byte[] input,
                                  int inputOffset,
                                  int inputLen)
                           throws IllegalStateException,
                                  IllegalBlockSizeException,
                                  BadPaddingException

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Specified by:

engineDoFinal in class CipherSpi

Parameters:

input -

inputOffset -

inputLen -

Returns:

Throws:

IllegalStateException

IllegalBlockSizeException

BadPaddingException

engineDoFinal

public final int engineDoFinal(byte[] input,
                               int inputOffset,
                               int inputLen,
                               byte[] output,
                               int outputOffset)
                        throws IllegalStateException,
                               ShortBufferException,
                               IllegalBlockSizeException,
                               BadPaddingException

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Specified by:

engineDoFinal in class CipherSpi

Parameters:

input -

inputOffset -

inputLen -

output -

outputOffset -

Returns:

Throws:

IllegalStateException

ShortBufferException

IllegalBlockSizeException

BadPaddingException

checkInputParameters

private void checkInputParameters(byte[] input,
                                  int inputOffset,
                                  int inputLen)

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Parameters:

input -

inputOffset -

inputLen -

Throws:

NullPointerException

IllegalArgumentException

ArrayIndexOutOfBoundsException

checkOutputParameters

private void checkOutputParameters(byte[] output,
                                   int outputOffset)

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Parameters:

output -

outputOffset -

Throws:

NullPointerException

IllegalArgumentException

ArrayIndexOutOfBoundsException