org.jitsi.bccontrib.macs

Class SkeinMac

java.lang.Object

org.jitsi.bccontrib.macs.SkeinMac

All Implemented Interfaces:

org.bouncycastle.crypto.Mac

public class SkeinMac
extends Object
implements org.bouncycastle.crypto.Mac

Constructor Summary

Constructors

Constructor and Description
SkeinMac()

Method Summary

Modifier and Type	Method and Description
int	doFinal(byte[] out, int outOff)
String	getAlgorithmName()
int	getMacSize()
void	init(org.bouncycastle.crypto.CipherParameters params)
void	reset()
void	update(byte in)
void	update(byte[] in, int inOff, int len)
void	updateBits(byte[] in, int inOff, int len) Update the MAC with a message bit string.

Methods inherited from class java.lang.Object

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

Constructor Detail

SkeinMac

public SkeinMac()

Method Detail

init

public void init(org.bouncycastle.crypto.CipherParameters params)
          throws IllegalArgumentException

Specified by:

init in interface org.bouncycastle.crypto.Mac

Throws:

IllegalArgumentException

getAlgorithmName

public String getAlgorithmName()

Specified by:

getAlgorithmName in interface org.bouncycastle.crypto.Mac

getMacSize

public int getMacSize()

Specified by:

getMacSize in interface org.bouncycastle.crypto.Mac

update

public void update(byte in)
            throws IllegalStateException

Specified by:

update in interface org.bouncycastle.crypto.Mac

Throws:

IllegalStateException

updateBits

public void updateBits(byte[] in,
                       int inOff,
                       int len)
                throws org.bouncycastle.crypto.DataLengthException,
                       IllegalStateException

Update the MAC with a message bit string. Skein can handle data not only as bytes but also as bit strings of arbitrary length (up to its maximum design size).

Parameters:

in - The byte array that holds the bit string. The array must be big enough to hold all bits.

inOff - Offset into byte array where the data starts, must be a byte number (not a bit number).

len - Number of bits to hash.

Throws:

org.bouncycastle.crypto.DataLengthException

IllegalStateException

update

public void update(byte[] in,
                   int inOff,
                   int len)
            throws org.bouncycastle.crypto.DataLengthException,
                   IllegalStateException

Specified by:

update in interface org.bouncycastle.crypto.Mac

Throws:

org.bouncycastle.crypto.DataLengthException

IllegalStateException

doFinal

public int doFinal(byte[] out,
                   int outOff)
            throws org.bouncycastle.crypto.DataLengthException,
                   IllegalStateException

Specified by:

doFinal in interface org.bouncycastle.crypto.Mac

Throws:

org.bouncycastle.crypto.DataLengthException

IllegalStateException

reset

public void reset()

Specified by:

reset in interface org.bouncycastle.crypto.Mac