Class TigerDigest
- java.lang.Object
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- org.gudy.bouncycastle.crypto.digests.TigerDigest
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- 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
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Field Summary
Fields Modifier and Type Field Description private long
a
private long
b
private int
bOff
private byte[]
buf
private long
byteCount
private long
c
private static int
DIGEST_LENGTH
private static long[]
t1
private static long[]
t2
private static long[]
t3
private static long[]
t4
private long[]
x
private int
xOff
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Constructor Summary
Constructors Constructor Description TigerDigest()
Standard constructorTigerDigest(TigerDigest t)
Copy constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
doFinal(byte[] out, int outOff)
close the digest, producing the final digest value.private void
finish()
java.lang.String
getAlgorithmName()
return the algorithm nameint
getDigestSize()
return the size, in bytes, of the digest produced by this message digest.private void
keySchedule()
private void
processBlock()
private void
processLength(long bitLength)
private void
processWord(byte[] b, int off)
void
reset()
reset the chaining variablesprivate void
roundABC(long x, long mul)
private void
roundBCA(long x, long mul)
private void
roundCAB(long x, long mul)
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.
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Field Detail
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t1
private static final long[] t1
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t2
private static final long[] t2
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t3
private static final long[] t3
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t4
private static final long[] t4
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DIGEST_LENGTH
private static final int DIGEST_LENGTH
- See Also:
- Constant Field Values
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a
private long a
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b
private long b
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c
private long c
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byteCount
private long byteCount
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buf
private byte[] buf
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bOff
private int bOff
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x
private long[] x
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xOff
private int xOff
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Constructor Detail
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TigerDigest
public TigerDigest()
Standard constructor
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TigerDigest
public TigerDigest(TigerDigest t)
Copy constructor. This will copy the state of the provided message digest.
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Method Detail
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getAlgorithmName
public java.lang.String getAlgorithmName()
Description copied from interface:Digest
return the algorithm name- Specified by:
getAlgorithmName
in interfaceDigest
- Returns:
- the algorithm name
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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 interfaceDigest
- Returns:
- the size, in bytes, of the digest produced by this message digest.
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processWord
private void processWord(byte[] b, int off)
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update
public void update(byte in)
Description copied from interface:Digest
update the message digest with a single byte.
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update
public void update(byte[] in, int inOff, int len)
Description copied from interface:Digest
update the message digest with a block of bytes.
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roundABC
private void roundABC(long x, long mul)
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roundBCA
private void roundBCA(long x, long mul)
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roundCAB
private void roundCAB(long x, long mul)
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keySchedule
private void keySchedule()
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processBlock
private void processBlock()
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unpackWord
public void unpackWord(long r, byte[] out, int outOff)
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processLength
private void processLength(long bitLength)
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finish
private void finish()
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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.
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