Package fr.cryptohash

The fr.cryptohash package contains implementations of various cryptographic hash functions.

All implemented functions assume the format of a dedicated class, with a no-argument constructor, and which implements the Digest interface. An instance of such a class represents a stateful running computation, into which data is input, and and the hash result is finally obtained.

A hash function instance is not thread-safe; however, distinct instances can be used concurrently with no ill effect. Instances are independent of each other, and mobilize no special ressources beyond a few plain Java objects. There is no need to "close" a given instance in any way.

An instance of Digest can be duplicated with the copy() method; the returned clone is thereafter independent of the original. This can be used to capture the hash function state at some point, after some data bytes have been input.

An instance of Digest can be reset at any time; this sets the hash function back to its initial state, ready to accept a new message. A call to reset() is automatically implied when the current hash operation is terminated (with a digest() method call).

Apart from the hash function classes, the fr.cryptohash package contains the following:

• Digest: the common interface.
• DigestEngine: an abstract class which helps with the implementation of Digest; most hash function implementations in this package use that base class.
• HMAC: an implementation of the HMAC message authentication code (see RFC 2104). HMAC implements Digest but is initialized with an underlying hash function implementation, and a secret key.

 ==========================(LICENSE BEGIN)============================

 Copyright (c) 2007-2010  Projet RNRT SAPHIR
 
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Version:

$Revision: 231 $

Author:

Thomas Pornin <thomas.pornin@cryptolog.com>

Interface Summary

Interface	Description
Digest	This interface documents the API for a hash function.

Class Summary

Class	Description
BLAKE224	This class implements the BLAKE-224 digest algorithm under the Digest API.
BLAKE256	This class implements the BLAKE-256 digest algorithm under the Digest API.
BLAKE384	This class implements the BLAKE-384 digest algorithm under the Digest API.
BLAKE512	This class implements the BLAKE-512 digest algorithm under the Digest API.
BMW224	This class implements the BMW-224 ("Blue Midnight Wish") digest algorithm under the Digest API.
BMW256	This class implements the BMW-256 ("Blue Midnight Wish") digest algorithm under the Digest API.
BMW384	This class implements the BMW-384 ("Blue Midnight Wish") digest algorithm under the Digest API.
BMW512	This class implements the BMW-512 ("Blue Midnight Wish") digest algorithm under the Digest API.
CubeHash224	This class implements the CubeHash-224 digest algorithm under the Digest API.
CubeHash256	This class implements the CubeHash-256 digest algorithm under the Digest API.
CubeHash384	This class implements the CubeHash-384 digest algorithm under the Digest API.
CubeHash512	This class implements the CubeHash-512 digest algorithm under the Digest API.
DigestEngine	This class is a template which can be used to implement hash functions.
ECHO224	This class implements the ECHO-224 digest algorithm under the Digest API.
ECHO256	This class implements the ECHO-256 digest algorithm under the Digest API.
ECHO384	This class implements the ECHO-384 digest algorithm under the Digest API.
ECHO512	This class implements the ECHO-512 digest algorithm under the Digest API.
Fugue224	This class implements the Fugue-224 digest algorithm under the Digest API.
Fugue256	This class implements the Fugue-256 digest algorithm under the Digest API.
Fugue384	This class implements the Fugue-384 hash function under the Digest API.
Fugue512	This class implements the Fugue-512 hash function under the Digest API.
Groestl224	This class implements the Groestl-224 digest algorithm under the Digest API.
Groestl256	This class implements the Groestl-256 digest algorithm under the Digest API.
Groestl384	This class implements the Groestl-384 digest algorithm under the Digest API.
Groestl512	This class implements the Groestl-512 digest algorithm under the Digest API.
Hamsi224	This class implements the Hamsi-224 digest algorithm under the Digest API.
Hamsi256	This class implements the Hamsi-256 digest algorithm under the Digest API.
Hamsi384	This class implements the Hamsi-384 digest algorithm under the Digest API.
Hamsi512	This class implements the Hamsi-512 digest algorithm under the Digest API.
HAVAL128_3	This class implements HAVAL with 128-bit output and 3 passes.
HAVAL128_4	This class implements HAVAL with 128-bit output and 4 passes.
HAVAL128_5	This class implements HAVAL with 128-bit output and 5 passes.
HAVAL160_3	This class implements HAVAL with 160-bit output and 3 passes.
HAVAL160_4	This class implements HAVAL with 160-bit output and 4 passes.
HAVAL160_5	This class implements HAVAL with 160-bit output and 5 passes.
HAVAL192_3	This class implements HAVAL with 192-bit output and 3 passes.
HAVAL192_4	This class implements HAVAL with 192-bit output and 4 passes.
HAVAL192_5	This class implements HAVAL with 192-bit output and 5 passes.
HAVAL224_3	This class implements HAVAL with 224-bit output and 3 passes.
HAVAL224_4	This class implements HAVAL with 224-bit output and 4 passes.
HAVAL224_5	This class implements HAVAL with 224-bit output and 5 passes.
HAVAL256_3	This class implements HAVAL with 256-bit output and 3 passes.
HAVAL256_4	This class implements HAVAL with 256-bit output and 4 passes.
HAVAL256_5	This class implements HAVAL with 256-bit output and 5 passes.
HMAC	This class implements the HMAC message authentication algorithm, under the Digest API, using the DigestEngine class.
JH224	This class implements the JH-224 digest algorithm under the Digest API.
JH256	This class implements the JH-256 digest algorithm under the Digest API.
JH384	This class implements the JH-384 digest algorithm under the Digest API.
JH512	This class implements the JH-512 digest algorithm under the Digest API.
Keccak224	This class implements the Keccak-224 digest algorithm under the Digest API.
Keccak256	This class implements the Keccak-256 digest algorithm under the Digest API.
Keccak384	This class implements the Keccak-384 digest algorithm under the Digest API.
Keccak512	This class implements the Keccak-512 digest algorithm under the Digest API.
Luffa224	This class implements the Luffa-224 digest algorithm under the Digest API.
Luffa256	This class implements the Luffa-256 digest algorithm under the Digest API.
Luffa384	This class implements Luffa-384 digest algorithm under the Digest API.
Luffa512	This class implements Luffa-512 digest algorithm under the Digest API.
MD2	This class implements the MD2 digest algorithm under the Digest API, using the DigestEngine class.
MD4	This class implements the MD4 digest algorithm under the Digest API, using the DigestEngine class.
MD5	This class implements the MD5 digest algorithm under the Digest API, using the DigestEngine class.
PANAMA	This class implements the PANAMA digest algorithm under the Digest API.
RadioGatun32	This class implements the RadioGatun[32] digest algorithm under the Digest API.
RadioGatun64	This class implements the RadioGatun[64] digest algorithm under the Digest API.
RIPEMD	This class implements the RIPEMD digest algorithm under the Digest API.
RIPEMD128	This class implements the RIPEMD-128 digest algorithm under the Digest API.
RIPEMD160	This class implements the RIPEMD-160 digest algorithm under the Digest API.
SHA0	This class implements the SHA-0 digest algorithm under the Digest API.
SHA1	This class implements the SHA-1 digest algorithm under the Digest API.
SHA224	This class implements the SHA-224 digest algorithm under the Digest API.
SHA256	This class implements the SHA-256 digest algorithm under the Digest API.
SHA384	This class implements the SHA-384 digest algorithm under the Digest API.
SHA512	This class implements the SHA-512 digest algorithm under the Digest API.
Shabal192	This class implements the Shabal-192 digest algorithm under the Digest API.
Shabal224	This class implements the Shabal-224 digest algorithm under the Digest API.
Shabal256	This class implements the Shabal-256 digest algorithm under the Digest API.
Shabal384	This class implements the Shabal-384 digest algorithm under the Digest API.
Shabal512	This class implements the Shabal-512 digest algorithm under the Digest API.
ShabalGeneric	This class implements Shabal for all output sizes from 32 to 512 bits (inclusive, only multiples of 32 are supported).
SHAvite224	This class implements the SHAvite-224 digest algorithm under the Digest API (in the SHAvite-3 specification, this function is known as "SHAvite-3 with a 224-bit output").
SHAvite256	This class implements the SHAvite-256 digest algorithm under the Digest API (in the SHAvite-3 specification, this function is known as "SHAvite-3 with a 256-bit output").
SHAvite384	This class implements the SHAvite-384 digest algorithm under the Digest API (in the SHAvite-3 specification, this function is known as "SHAvite-3 with a 384-bit output").
SHAvite512	This class implements the SHAvite-512 digest algorithm under the Digest API (in the SHAvite-3 specification, this function is known as "SHAvite-3 with a 512-bit output").
SIMD224	This class implements the SIMD-224 digest algorithm under the Digest API.
SIMD256	This class implements the SIMD-256 digest algorithm under the Digest API.
SIMD384	This class implements the SIMD-384 digest algorithm under the Digest API.
SIMD512	This class implements the SIMD-512 digest algorithm under the Digest API.
Skein224	This class implements the Skein-224 digest algorithm under the Digest API.
Skein256	This class implements the Skein-256 digest algorithm under the Digest API.
Skein384	This class implements the Skein-384 digest algorithm under the Digest API.
Skein512	This class implements the Skein-512 digest algorithm under the Digest API.
Tiger	This class implements the Tiger hash algorithm under the Digest API.
Tiger2	This class implements the Tiger2 hash algorithm under the Digest API.
Whirlpool	This class implements the Whirlpool digest algorithm under the Digest API.
Whirlpool0	This class implements the Whirlpool-0 digest algorithm under the Digest API.
Whirlpool1	This class implements the Whirlpool-1 digest algorithm under the Digest API.