org.gudy.bouncycastle.crypto.digests
Class TigerDigest

java.lang.Object
  extended by org.gudy.bouncycastle.crypto.digests.TigerDigest
All Implemented Interfaces:
Digest

public class TigerDigest
extends java.lang.Object
implements Digest

implementation of Tiger based on: http://www.cs.technion.ac.il/~biham/Reports/Tiger


Constructor Summary
TigerDigest()
          Standard constructor
TigerDigest(TigerDigest t)
          Copy constructor.
 
Method Summary
 int doFinal(byte[] out, int outOff)
          close the digest, producing the final digest value.
 java.lang.String getAlgorithmName()
          return the algorithm name
 int getDigestSize()
          return the size, in bytes, of the digest produced by this message digest.
 void reset()
          reset the chaining variables
 void unpackWord(long r, byte[] out, int outOff)
           
 void update(byte in)
          update the message digest with a single byte.
 void update(byte[] in, int inOff, int len)
          update the message digest with a block of bytes.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TigerDigest

public TigerDigest()
Standard constructor


TigerDigest

public TigerDigest(TigerDigest t)
Copy constructor. This will copy the state of the provided message digest.

Method Detail

getAlgorithmName

public java.lang.String getAlgorithmName()
Description copied from interface: Digest
return the algorithm name

Specified by:
getAlgorithmName in interface Digest
Returns:
the algorithm name

getDigestSize

public int getDigestSize()
Description copied from interface: Digest
return the size, in bytes, of the digest produced by this message digest.

Specified by:
getDigestSize in interface Digest
Returns:
the size, in bytes, of the digest produced by this message digest.

update

public void update(byte in)
Description copied from interface: Digest
update the message digest with a single byte.

Specified by:
update in interface Digest
Parameters:
in - the input byte to be entered.

update

public void update(byte[] in,
                   int inOff,
                   int len)
Description copied from interface: Digest
update the message digest with a block of bytes.

Specified by:
update in interface Digest
Parameters:
in - the byte array containing the data.
inOff - the offset into the byte array where the data starts.
len - the length of the data.

unpackWord

public void unpackWord(long r,
                       byte[] out,
                       int outOff)

doFinal

public int doFinal(byte[] out,
                   int outOff)
Description copied from interface: Digest
close the digest, producing the final digest value. The doFinal call leaves the digest reset.

Specified by:
doFinal in interface Digest
Parameters:
out - the array the digest is to be copied into.
outOff - the offset into the out array the digest is to start at.

reset

public void reset()
reset the chaining variables

Specified by:
reset in interface Digest