hu.netmind.util
Class FastCrc

java.lang.Object
  hu.netmind.util.FastCrc

public class FastCrc
extends java.lang.Object

This class implements the fast crc algorithm (that is, it takes whole bytes at once).

Constructor Summary

FastCrc(int generator)
Construct, and initialize the fast crc algorithm with the given generator polynomial.

Method Summary

int	crc(byte[] b) Generate crc code.
int	crc(byte[] b, int offset, int length) Generate crc code for given byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

FastCrc

public FastCrc(int generator)

Construct, and initialize the fast crc algorithm with the given generator polynomial.

Parameters:

generator - The generator polynomial.

Method Detail

crc

public int crc(byte[] b,
               int offset,
               int length)

Generate crc code for given byte array.

Parameters:

b - The byte array.

offset - The offset to start from.

length - The length of data.

crc

public int crc(byte[] b)

Generate crc code. Same as crc(b,0,b.length).

Parameters:

b - The byte data.