javax.crypto
Class MacSpi

java.lang.Object
  javax.crypto.MacSpi

Direct Known Subclasses:

HmacSpi

public abstract class MacSpi
extends Object

Constructor Summary

MacSpi()

Method Summary

Object	clone() Returns a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
protected abstract byte[]	engineDoFinal()
protected abstract int	engineGetMacLength()
protected abstract void	engineInit(Key key, AlgorithmParameterSpec params)
protected abstract void	engineReset()
protected abstract void	engineUpdate(byte input)
protected abstract void	engineUpdate(byte[] input, int offset, int len)
protected void	engineUpdate(ByteBuffer input)

Methods inherited from class java.lang.Object

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

Constructor Detail

MacSpi

public MacSpi()

Method Detail

engineGetMacLength

protected abstract int engineGetMacLength()

engineInit

protected abstract void engineInit(Key key,
                                   AlgorithmParameterSpec params)
                            throws InvalidKeyException,
                                   InvalidAlgorithmParameterException

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineUpdate

protected abstract void engineUpdate(byte input)

engineUpdate

protected abstract void engineUpdate(byte[] input,
                                     int offset,
                                     int len)

engineUpdate

protected void engineUpdate(ByteBuffer input)

engineDoFinal

protected abstract byte[] engineDoFinal()

engineReset

protected abstract void engineReset()

clone

public Object clone()
             throws CloneNotSupportedException

Description copied from class: Object

Returns a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.

Classes which wish to support cloning must specify that they implement the Cloneable interface, since the implementation checks for this.

Overrides:

clone in class Object

Returns:

Object a shallow copy of this object.

Throws:

CloneNotSupportedException - if the receiver's class does not implement the interface Cloneable.