gnu.crypto.jce.mac
Class MacAdapter

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

Direct Known Subclasses:

HMacHavalSpi, HMacMD2Spi, HMacMD4Spi, HMacMD5Spi, HMacRipeMD128Spi, HMacRipeMD160Spi, HMacSHA160Spi, HMacSHA256Spi, HMacSHA384Spi, HMacSHA512Spi, HMacTigerSpi, HMacWhirlpoolSpi, TMMH16Spi, UHash32Spi, UMac32Spi

class MacAdapter

extends javax.crypto.MacSpi

The implementation of a generic Mac adapter class to wrap GNU Crypto MAC instances.

This class defines the Service Provider Interface (SPI) for the Mac class, which provides the functionality of a message authentication code algorithm, such as the Hashed Message Authentication Code (HMAC) algorithms.

Version:

$Revision: 1.2 $

Field Summary

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

Constructor Summary

protected

MacAdapter(java.lang.String name) Creates a new Mac instance for the given name.

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

MacAdapter

protected MacAdapter(java.lang.String name)

Creates a new Mac instance for the given name.

Parameters:

name - The name of the mac to create.

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)