javax.crypto

Class NullCipher

  1. java.lang.Object
  2. extended byjavax.crypto.Cipher
  3. extended byjavax.crypto.NullCipher

  1. public class NullCipher
  2. extends Cipher
The NullCipher class is a class that provides an "identity cipher" -- one that does not tranform the plaintext. As a consequence, the ciphertext is identical to the plaintext. All initialization methods do nothing, while the blocksize is set to 1 byte.
Since:
1.4
Version:
1.10, 01/06/04
Author:
Li Gong

Field Summary

Fields inherited from class javax.crypto.Cipher
DECRYPT_MODE, ENCRYPT_MODE, PRIVATE_KEY, PUBLIC_KEY, SECRET_KEY, UNWRAP_MODE, WRAP_MODE

Constructor Summary

Constructor and Description
NullCipher()

Method Summary

Methods inherited from class javax.crypto.Cipher
doFinal, doFinal, doFinal, doFinal, doFinal, doFinal, doFinal, getAlgorithm, getBlockSize, getExemptionMechanism, getInstance, getInstance, getInstance, getIV, getMaxAllowedKeyLength, getMaxAllowedParameterSpec, getOutputSize, getParameters, getProvider, init, init, init, init, init, init, init, init, unwrap, update, update, update, update, update, wrap
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullCipher

  1. public NullCipher()