80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* shabal256.c */
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/*
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This file is part of the ARM-Crypto-Lib.
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Copyright (C) 2006-2010 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 shabal256.c
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* \author Daniel Otte
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* \email daniel.otte@rub.de
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* \date 2009-04-27
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* \license GPLv3 or later
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*
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*/
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#include <stdint.h>
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#include "shabal.h"
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#include <string.h>
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const uint32_t shabal256_iv[] = {
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/* A */
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0x52F84552, 0xE54B7999, 0x2D8EE3EC, 0xB9645191,
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0xE0078B86, 0xBB7C44C9, 0xD2B5C1CA, 0xB0D2EB8C,
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0x14CE5A45, 0x22AF50DC, 0xEFFDBC6B, 0xEB21B74A,
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/* B */
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0xB555C6EE, 0x3E710596, 0xA72A652F, 0x9301515F,
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0xDA28C1FA, 0x696FD868, 0x9CB6BF72, 0x0AFE4002,
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0xA6E03615, 0x5138C1D4, 0xBE216306, 0xB38B8890,
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0x3EA8B96B, 0x3299ACE4, 0x30924DD4, 0x55CB34A5,
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/* C */
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0xB405F031, 0xC4233EBA, 0xB3733979, 0xC0DD9D55,
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0xC51C28AE, 0xA327B8E1, 0x56C56167, 0xED614433,
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0x88B59D60, 0x60E2CEBA, 0x758B4B8B, 0x83E82A7F,
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0xBC968828, 0xE6E00BF7, 0xBA839E55, 0x9B491C60
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};
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void shabal256_init(shabal_ctx_t* ctx){
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uint8_t i;
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ctx->b = ctx->b_buffer;
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ctx->c = ctx->c_buffer;
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ctx->w.w64 = 1LL;
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for(i=0;i<SHABAL_R;++i){
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ctx->a[i] = shabal256_iv[i];
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}
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for(i=0;i<16;++i){
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ctx->b[i] = shabal256_iv[SHABAL_R+i];
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}
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for(i=0;i<16;++i){
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ctx->c[i] = shabal256_iv[SHABAL_R+16+i];
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}
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}
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void shabal256_ctx2hash(void* dest, const shabal_ctx_t* ctx){
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shabal_ctx2hash(dest, ctx, 256);
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}
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void shabal256(void* dest, void* msg, uint32_t length_b){
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shabal_ctx_t ctx;
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shabal256_init(&ctx);
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while(length_b>=SHABAL_BLOCKSIZE){
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shabal_nextBlock(&ctx, msg);
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msg = (uint8_t*)msg+SHABAL_BLOCKSIZE_B;
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length_b -= SHABAL_BLOCKSIZE;
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}
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shabal_lastBlock(&ctx, msg, length_b);
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shabal256_ctx2hash(dest, &ctx);
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}
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