Class NullCipher
- java.lang.Object
-
- javax.crypto.Cipher
-
- javax.crypto.NullCipher
public class NullCipher extends Cipher
The NullCipher class is a class that provides an "identity cipher" -- one that does not transform the plain text. 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
Field Summary
Fields declared in class javax.crypto.Cipher
DECRYPT_MODE, ENCRYPT_MODE, PRIVATE_KEY, PUBLIC_KEY, SECRET_KEY, UNWRAP_MODE, WRAP_MODE Constructor Summary
| Constructor | Description |
|---|---|
NullCipher() | Creates a NullCipher object. |
Method Summary
Methods declared in 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, updateAAD, updateAAD, updateAAD, wrap Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait Constructor Detail
NullCipher
public NullCipher()
Creates a NullCipher object.