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gnu.crypto.jce.mac
Class MacAdapter

java.lang.Object
  |
  +--javax.crypto.MacSpi
        |
        +--gnu.crypto.jce.mac.MacAdapter
Direct Known Subclasses:
HMacMD2Spi, HMacMD4Spi, HMacMD5Spi, HMacRipeMD128Spi, HMacRipeMD160Spi, HMacSHA160Spi, 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()
Overrides:
clone in class javax.crypto.MacSpi

engineDoFinal

protected byte[] engineDoFinal()
Specified by:
engineDoFinal in class javax.crypto.MacSpi

engineGetMacLength

protected int engineGetMacLength()
Specified by:
engineGetMacLength in class javax.crypto.MacSpi

engineInit

protected void engineInit(java.security.Key key,
                          java.security.spec.AlgorithmParameterSpec params)
                   throws java.security.InvalidKeyException,
                          java.security.InvalidAlgorithmParameterException
Specified by:
engineInit in class javax.crypto.MacSpi
java.security.InvalidKeyException
java.security.InvalidAlgorithmParameterException

engineReset

protected void engineReset()
Specified by:
engineReset in class javax.crypto.MacSpi

engineUpdate

protected void engineUpdate(byte b)
Specified by:
engineUpdate in class javax.crypto.MacSpi

engineUpdate

protected void engineUpdate(byte[] in,
                            int off,
                            int len)
Specified by:
engineUpdate in class javax.crypto.MacSpi

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