NullCipherImpl

Overview

Package

Class

Use

Deprecated

Index

Home >> All >> javax >> [ crypto overview ]

PREV CLASS NEXT CLASS

SUMMARY:

JAVADOC |

Sourc code of javax.crypto.NullCipherImpl

SOURCE |

DOWNLOAD | NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

javax.crypto
Class NullCipherImpl

java.lang.Object
  javax.crypto.CipherSpi
      javax.crypto.NullCipherImpl

final class NullCipherImpl
extends CipherSpi

Implementation of the identity cipher.

Constructor Summary

(package private) NullCipherImpl()


Method Summary

protected byte[] engineDoFinal(byte[] input, int inputOffset, int inputLen)
          Finishes a multi-part transformation or transforms a portion of a byte array, and returns the transformed bytes.

protected int engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
          Finishes a multi-part transformation or transforms a portion of a byte array, and stores the transformed bytes in the supplied array.

protected int engineGetBlockSize()
          Returns the block size of the underlying cipher.

protected byte[] engineGetIV()
          Returns the initializaiton vector this cipher was initialized with, if any.

protected int engineGetOutputSize(int inputLen)
          Returns the size, in bytes, an output buffer must be for a call to engineUpdate(byte[],int,int,byte[],int) 55 or engineDoFinal(byte[],int,int,byte[],int) 55 to succeed.

protected java.security.AlgorithmParameters engineGetParameters()
          Returns the parameters that this cipher is using.

protected void engineInit(int mode, java.security.Key key, java.security.spec.AlgorithmParameterSpec spec, java.security.SecureRandom random)
          Initializes this cipher with an operation mode, key, parameters, and source of randomness.

protected void engineInit(int mode, java.security.Key key, java.security.AlgorithmParameters params, java.security.SecureRandom random)
          Initializes this cipher with an operation mode, key, parameters, and source of randomness.

protected void engineInit(int mode, java.security.Key key, java.security.SecureRandom random)
          Initializes this cipher with an operation mode, key, and source of randomness.

protected void engineSetMode(java.lang.String mode)
          Set the mode in which this cipher is to run.

protected void engineSetPadding(java.lang.String padding)
          Set the method with which the input is to be padded.

protected byte[] engineUpdate(byte[] input, int inputOffset, int inputLen)
          Continue with a multi-part transformation, returning a new array of the transformed bytes.

protected int engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
          Continue with a multi-part transformation, storing the transformed bytes into the specified array.

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

NullCipherImpl

NullCipherImpl()

Method Detail