sun.security.mule.krb5.internal.crypto
Class crc32

java.lang.Object
  java.security.MessageDigestSpi
      sun.security.mule.krb5.internal.crypto.crc32

All Implemented Interfaces:

Cloneable

public final class crc32
extends MessageDigestSpi
implements Cloneable

Constructor Summary

crc32()

Method Summary

static int	byte2crc32(byte[] data)
static byte[]	byte2crc32sum_bytes(byte[] data)
static byte[]	byte2crc32sum_bytes(byte[] data, int size)
static int	byte2crc32sum(byte[] data)
static int	byte2crc32sum(int seed, byte[] data)
static int	byte2crc32sum(int seed, byte[] data, int size)
Object	clone()
protected byte[]	engineDigest()
protected int	engineDigest(byte[] buf, int offset, int len)
protected int	engineGetDigestLength() Return the digest length in bytes
protected void	engineReset()
protected void	engineUpdate(byte b) Update adds the passed byte to the digested data.
protected void	engineUpdate(byte[] input, int offset, int len) Update adds the selected part of an array of bytes to the digest.
void	init() Initialize the CRC32 information
static int	int2crc32(int b)
static byte[]	int2quad(long input)
static void	printcrc32Table()

Methods inherited from class java.security.MessageDigestSpi

engineUpdate

Methods inherited from class java.lang.Object

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

Constructor Detail

crc32

public crc32()

Method Detail

clone

public Object clone()

Overrides:

clone in class MessageDigestSpi

engineGetDigestLength

protected int engineGetDigestLength()

Return the digest length in bytes

Overrides:

engineGetDigestLength in class MessageDigestSpi

engineDigest

protected byte[] engineDigest()

Specified by:

engineDigest in class MessageDigestSpi

engineDigest

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

Overrides:

engineDigest in class MessageDigestSpi

Throws:

DigestException

engineUpdate

protected void engineUpdate(byte b)

Update adds the passed byte to the digested data.

Specified by:

engineUpdate in class MessageDigestSpi

engineUpdate

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

Update adds the selected part of an array of bytes to the digest. This version is more efficient than the byte-at-a-time version; it avoids data copies and reduces per-byte call overhead.

Specified by:

engineUpdate in class MessageDigestSpi

engineReset

protected void engineReset()

Specified by:

engineReset in class MessageDigestSpi

init

public void init()

Initialize the CRC32 information

int2crc32

public static int int2crc32(int b)

printcrc32Table

public static void printcrc32Table()

byte2crc32sum

public static int byte2crc32sum(int seed,
                                byte[] data,
                                int size)

byte2crc32sum

public static int byte2crc32sum(int seed,
                                byte[] data)

byte2crc32sum

public static int byte2crc32sum(byte[] data)

byte2crc32

public static int byte2crc32(byte[] data)

byte2crc32sum_bytes

public static byte[] byte2crc32sum_bytes(byte[] data)

byte2crc32sum_bytes

public static byte[] byte2crc32sum_bytes(byte[] data,
                                         int size)

int2quad

public static byte[] int2quad(long input)