gnu.crypto.hash
Class Whirlpool
- Cloneable, IMessageDigest
public final class Whirlpool
Whirlpool, a new 512-bit hashing function operating on messages less than
2 ** 256 bits in length. The function structure is designed according to the
Wide Trail strategy and permits a wide variety of implementation trade-offs.
IMPORTANT: This implementation is not thread-safe.
References:
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The WHIRLPOOL Hashing Function.
Paulo S.L.M. Barreto and
Vincent Rijmen.
Object | clone() - Returns a clone copy of this instance.
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protected byte[] | getResult() - Constructs the result from the contents of the current context.
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protected byte[] | padBuffer() - Returns the byte array to use as padding before completing a hash
operation.
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protected void | resetContext() - Resets the instance for future re-use.
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boolean | selfTest() - A basic test.
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protected void | transform(byte[] in, int offset) - The block digest transformation per se.
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blockSize , clone , digest , getResult , hashSize , name , padBuffer , reset , resetContext , selfTest , transform , update , update , update |
Whirlpool
public Whirlpool()
Trivial 0-arguments constructor.
getResult
protected byte[] getResult()
Constructs the result from the contents of the current context.
- getResult in interface BaseHash
- the output of the completed hash operation.
padBuffer
protected byte[] padBuffer()
Returns the byte array to use as padding before completing a hash
operation.
- padBuffer in interface BaseHash
- the bytes to pad the remaining bytes in the buffer before
completing a hash operation.
resetContext
protected void resetContext()
Resets the instance for future re-use.
- resetContext in interface BaseHash
selfTest
public boolean selfTest()
A basic test. Ensures that the digest of a pre-determined message is equal
to a known pre-computed value.
- selfTest in interface IMessageDigest
- selfTest in interface BaseHash
- true if the implementation passes a basic self-test.
Returns false otherwise.
transform
protected void transform(byte[] in,
int offset)
The block digest transformation per se.
- transform in interface BaseHash
in
- the blockSize long block, as an array of bytes to digest.offset
- the index where the data to digest is located within the
input buffer.
Copyright © 2001, 2002, 2003
Free Software Foundation,
Inc. All Rights Reserved.