jcifs.util
Class HMACT64

java.lang.Object
  java.security.MessageDigestSpi
      java.security.MessageDigest
          jcifs.util.HMACT64

All Implemented Interfaces:

Cloneable

public class HMACT64
extends MessageDigest
implements Cloneable

This is an implementation of the HMACT64 keyed hashing algorithm. HMACT64 is defined by Luke Leighton as a modified HMAC-MD5 (RFC 2104) in which the key is truncated at 64 bytes (rather than being hashed via MD5).

Constructor Summary

HMACT64(byte[] key)
Creates an HMACT64 instance which uses the given secret key material.

Method Summary

Object	clone()
protected byte[]	engineDigest()
protected int	engineDigest(byte[] buf, int offset, int len)
protected int	engineGetDigestLength()
protected void	engineReset()
protected void	engineUpdate(byte b)
protected void	engineUpdate(byte[] input, int offset, int len)

Methods inherited from class java.security.MessageDigest

digest, digest, digest, getAlgorithm, getDigestLength, getInstance, getInstance, getInstance, getProvider, isEqual, reset, toString, update, update, update, update

Methods inherited from class java.security.MessageDigestSpi

engineUpdate

Methods inherited from class java.lang.Object

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

Constructor Detail

HMACT64

public HMACT64(byte[] key)

Creates an HMACT64 instance which uses the given secret key material.

Parameters:

key - The key material to use in hashing.

Method Detail

clone

public Object clone()

Overrides:

clone in class MessageDigest

engineDigest

protected byte[] engineDigest()

Specified by:

engineDigest in class MessageDigestSpi

engineDigest

protected int engineDigest(byte[] buf,
                           int offset,
                           int len)

Overrides:

engineDigest in class MessageDigestSpi

engineGetDigestLength

protected int engineGetDigestLength()

Overrides:

engineGetDigestLength in class MessageDigestSpi

engineReset

protected void engineReset()

Specified by:

engineReset in class MessageDigestSpi

engineUpdate

protected void engineUpdate(byte b)

Specified by:

engineUpdate in class MessageDigestSpi

engineUpdate

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

Specified by:

engineUpdate in class MessageDigestSpi