com.planetj.math.rabinhash
Class RHF64

java.lang.Object
  java.security.MessageDigestSpi
      com.planetj.math.rabinhash.RHF64

All Implemented Interfaces:

java.lang.Cloneable

public final class RHF64

extends java.security.MessageDigestSpi

implements java.lang.Cloneable

Provides a MessageDigest based on RabinHashFunction64.

Since:

2.0

Version:

2.0

Author:

Sean Owen

Constructor Summary

RHF64()

Method Summary

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

Methods inherited from class java.security.MessageDigestSpi

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

RHF64

public RHF64()

Method Detail

engineGetDigestLength

protected int engineGetDigestLength()

Returns:

8

engineUpdate

protected void engineUpdate(byte input)

engineUpdate

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

engineDigest

protected byte[] engineDigest()

engineDigest

protected int engineDigest(byte[] buf,
                           int offset,
                           int len)
                    throws java.security.DigestException

Parameters:

buf - buffer into which to write the digest

offset - offset into buffer at which to start writing

len - (not used)

Returns:

8

Throws:

java.security.DigestException - if len is less than 8

engineReset

protected void engineReset()