gnu.crypto.jce.mac
Class HMacSHA256Spi

java.lang.Object
  javax.crypto.MacSpi
      gnu.crypto.jce.mac.MacAdapter
          gnu.crypto.jce.mac.HMacSHA256Spi

public final class HMacSHA256Spi

extends MacAdapter

The implementation of the HMAC-SHA-256 Service Provider Interface (SPI) adapter.

Version:

$Revision: 1.2 $

Field Summary

protected java.util.Map	attributes Our MAC attributes.
protected IMac	mac Our MAC instance.

Constructor Summary

HMacSHA256Spi()

Method Summary

java.lang.Object	clone()
protected byte[]	engineDoFinal()
protected int	engineGetMacLength()
protected void	engineInit(java.security.Key key, java.security.spec.AlgorithmParameterSpec params)
protected void	engineReset()
protected void	engineUpdate(byte b)
protected void	engineUpdate(byte[] in, int off, int len)

Methods inherited from class java.lang.Object

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

Field Detail

mac

protected IMac mac

Our MAC instance.

attributes

protected java.util.Map attributes

Our MAC attributes.

Constructor Detail

HMacSHA256Spi

public HMacSHA256Spi()

Method Detail

clone

public java.lang.Object clone()

engineDoFinal

protected byte[] engineDoFinal()

engineGetMacLength

protected int engineGetMacLength()

engineInit

protected void engineInit(java.security.Key key,
                          java.security.spec.AlgorithmParameterSpec params)
                   throws java.security.InvalidKeyException,
                          java.security.InvalidAlgorithmParameterException

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

engineReset

protected void engineReset()

engineUpdate

protected void engineUpdate(byte b)

engineUpdate

protected void engineUpdate(byte[] in,
                            int off,
                            int len)