91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/* threefish.c */
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/*
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This file is part of the ARM-Crypto-Lib.
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Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* \file threefish.h
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* \author Daniel Otte
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* \email daniel.otte@rub.de
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* \date 2009-03-12
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* \license GPLv3 or later
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* \brief Implementation of the Threefish block cipher
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* \ingroup Threefish
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*/
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#ifndef THREEFISH_H_
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#define THREEFISH_H_
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#include <stdint.h>
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#define THREEFISH256_BLOCKSIZE 256
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#define THREEFISH256_BLOCKSIZE_B ((THREEFISH256_BLOCKSIZE+7)/8)
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#define THREEFISH512_BLOCKSIZE 512
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#define THREEFISH512_BLOCKSIZE_B ((THREEFISH512_BLOCKSIZE+7)/8)
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#define THREEFISH1024_BLOCKSIZE 1024
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#define THREEFISH1024_BLOCKSIZE_B ((THREEFISH1024_BLOCKSIZE+7)/8)
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/** \typedef threefish256_ctx_t
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* \brief holds key data for Threefish-256
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*
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* A variable of this type may hold the key data for Threefish-256 encryption
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* or decryption..
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*/
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typedef struct{
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uint64_t k[5];
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uint64_t t[3];
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} threefish256_ctx_t;
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/** \typedef threefish512_ctx_t
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* \brief holds key data for Threefish-512
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*
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* A variable of this type may hold the key data for Threefish-512 encryption
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* or decryption..
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*/
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typedef struct{
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uint64_t k[9];
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uint64_t t[3];
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} threefish512_ctx_t;
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/** \typedef threefish1024_ctx_t
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* \brief holds key data for Threefish-1024
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*
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* A variable of this type may hold the key data for Threefish-1024 encryption
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* or decryption..
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*/
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typedef struct{
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uint64_t k[17];
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uint64_t t[3];
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} threefish1024_ctx_t;
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void threefish_mix(void* data, uint8_t rot);
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void threefish_invmix(void* data, uint8_t rot);
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void threefish256_init(const void* key, const void* tweak, threefish256_ctx_t* ctx);
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void threefish512_init(const void* key, const void* tweak, threefish512_ctx_t* ctx);
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void threefish1024_init(const void* key, const void* tweak, threefish1024_ctx_t* ctx);
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void threefish256_enc(void* data, const threefish256_ctx_t* ctx);
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void threefish512_enc(void* data, const threefish512_ctx_t* ctx);
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void threefish1024_enc(void* data, const threefish1024_ctx_t* ctx);
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void threefish256_dec(void* data, const threefish256_ctx_t* ctx);
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void threefish512_dec(void* data, const threefish512_ctx_t* ctx);
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void threefish1024_dec(void* data, const threefish1024_ctx_t* ctx);
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#endif /* THREEFISH_H_ */
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