Package org.refcodes.security.ext.chaos

Class ChaosCipherImpl

java.lang.Object

javax.crypto.CipherSpi

org.refcodes.security.ext.chaos.ChaosCipherImpl

public class ChaosCipherImpl
extends CipherSpi

Thanks Christian Pontesegger for the very good example on "Writing your own JCA extensions - a full cipher" at: "http://codeandme.blogspot.de/2013/07/writing-your-own-jca-extensions-full.html" and for the very good example on "Writing your own JCA extensions - a simple digest " at: "http://codeandme.blogspot.de/2013/06/writing-your-own-jca-extensions-simple.html"

Constructor Summary

Constructors

Constructor	Description
ChaosCipherImpl()

Method Summary

Modifier and Type	Method	Description
protected byte[]	engineDoFinal(byte[] aInput, int aInputOffset, int aInputLength)
protected int	engineDoFinal(byte[] aInput, int aInputOffset, int aInputLength, byte[] output, int outputOffset)
protected int	engineGetBlockSize()
protected byte[]	engineGetIV()
protected int	engineGetKeySize(Key key)
protected int	engineGetOutputSize(int aInputLength)
protected AlgorithmParameters	engineGetParameters()
protected void	engineInit(int opmode, Key key, AlgorithmParameters aParams, SecureRandom aRandom)
protected void	engineInit(int aMode, Key aKey, SecureRandom aRandom)
protected void	engineInit(int opmode, Key key, AlgorithmParameterSpec aParams, SecureRandom aRandom)
protected void	engineSetMode(String aMode)
protected void	engineSetPadding(String aPading)
protected byte[]	engineUpdate(byte[] aInput, int aInputOffset, int aInputLength)
protected int	engineUpdate(byte[] aInput, int aInputOffset, int aInputLength, byte[] aOutput, int aOutputOffset)

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineUnwrap, engineUpdate, engineUpdateAAD, engineUpdateAAD, engineWrap

Methods inherited from class java.lang.Object

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

Constructor Detail

ChaosCipherImpl

public ChaosCipherImpl()

Method Detail

engineDoFinal

protected byte[] engineDoFinal(byte[] aInput,
                               int aInputOffset,
                               int aInputLength)
                        throws IllegalBlockSizeException,
                               BadPaddingException

Specified by:

engineDoFinal in class CipherSpi

Throws:

IllegalBlockSizeException

BadPaddingException

engineDoFinal

protected int engineDoFinal(byte[] aInput,
                            int aInputOffset,
                            int aInputLength,
                            byte[] output,
                            int outputOffset)
                     throws ShortBufferException,
                            IllegalBlockSizeException,
                            BadPaddingException

Specified by:

engineDoFinal in class CipherSpi

Throws:

ShortBufferException

IllegalBlockSizeException

BadPaddingException

engineGetBlockSize

protected int engineGetBlockSize()

Specified by:

engineGetBlockSize in class CipherSpi

engineGetIV

protected byte[] engineGetIV()

Specified by:

engineGetIV in class CipherSpi

engineGetOutputSize

protected int engineGetOutputSize(int aInputLength)

Specified by:

engineGetOutputSize in class CipherSpi

engineGetParameters

protected AlgorithmParameters engineGetParameters()

Specified by:

engineGetParameters in class CipherSpi

engineInit

protected void engineInit(int aMode,
                          Key aKey,
                          SecureRandom aRandom)
                   throws InvalidKeyException

Specified by:

engineInit in class CipherSpi

Throws:

InvalidKeyException

engineInit

protected void engineInit(int opmode,
                          Key key,
                          AlgorithmParameterSpec aParams,
                          SecureRandom aRandom)
                   throws InvalidKeyException,
                          InvalidAlgorithmParameterException

Specified by:

engineInit in class CipherSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineInit

protected void engineInit(int opmode,
                          Key key,
                          AlgorithmParameters aParams,
                          SecureRandom aRandom)
                   throws InvalidKeyException,
                          InvalidAlgorithmParameterException

Specified by:

engineInit in class CipherSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineSetMode

protected void engineSetMode(String aMode)
                      throws NoSuchAlgorithmException

Specified by:

engineSetMode in class CipherSpi

Throws:

NoSuchAlgorithmException

engineSetPadding

protected void engineSetPadding(String aPading)
                         throws NoSuchPaddingException

Specified by:

engineSetPadding in class CipherSpi

Throws:

NoSuchPaddingException

engineUpdate

protected byte[] engineUpdate(byte[] aInput,
                              int aInputOffset,
                              int aInputLength)

Specified by:

engineUpdate in class CipherSpi

engineUpdate

protected int engineUpdate(byte[] aInput,
                           int aInputOffset,
                           int aInputLength,
                           byte[] aOutput,
                           int aOutputOffset)
                    throws ShortBufferException

Specified by:

engineUpdate in class CipherSpi

Throws:

ShortBufferException

engineGetKeySize

protected int engineGetKeySize(Key key)
                        throws InvalidKeyException

Overrides:

engineGetKeySize in class CipherSpi

Throws:

InvalidKeyException