javax.crypto
Class HmacSpi

java.lang.Object
  javax.crypto.MacSpi
      javax.crypto.HmacSpi

 class HmacSpi
extends MacSpi

Internal class implementing HMAC

Constructor Summary

HmacSpi()

Method Summary

protected byte[]	engineDoFinal()
protected int	engineGetMacLength()
protected void	engineInit(Key key, AlgorithmParameterSpec params)
protected void	engineReset()
protected void	engineUpdate(byte input)
protected void	engineUpdate(byte[] input, int offset, int len)

Methods inherited from class javax.crypto.MacSpi

clone, engineUpdate

Methods inherited from class java.lang.Object

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

Constructor Detail

HmacSpi

HmacSpi()

Method Detail

engineDoFinal

protected byte[] engineDoFinal()

Specified by:

engineDoFinal in class MacSpi

engineGetMacLength

protected int engineGetMacLength()

Specified by:

engineGetMacLength in class MacSpi

engineInit

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

Specified by:

engineInit in class MacSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineReset

protected void engineReset()

Specified by:

engineReset in class MacSpi

engineUpdate

protected void engineUpdate(byte input)

Specified by:

engineUpdate in class MacSpi

engineUpdate

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

Specified by:

engineUpdate in class MacSpi