3 This file is part of the ARM-Crypto-Lib.
4 Copyright (C) 2006-2010 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * \file groestl_large.c
22 * \email daniel.otte@rub.de
24 * \license GPLv3 or later
28 #include "groestl_large.h"
42 void dump_m(const uint8_t* m){
48 cli_hexdump(m+8*i+j, 1);
56 static const uint8_t matrix[] = {
57 2, 2, 3, 4, 5, 3, 5, 7,
58 7, 2, 2, 3, 4, 5, 3, 5,
59 5, 7, 2, 2, 3, 4, 5, 3,
60 3, 5, 7, 2, 2, 3, 4, 5,
61 5, 3, 5, 7, 2, 2, 3, 4,
62 4, 5, 3, 5, 7, 2, 2, 3,
63 3, 4, 5, 3, 5, 7, 2, 2,
64 2, 3, 4, 5, 3, 5, 7, 2
67 void groestl_large_rounds(uint8_t *m, uint8_t q){
70 for(r=0; r<ROUNDS; ++r){
78 cli_putstr("\r\npost add-const");
83 m[i] = aes_sbox[m[i]];
89 m[i+((j-i+16)%16)*8] = tmp[j];
95 m[7+((j-11+16)%16)*8] = tmp[j];
100 cli_putstr("\r\npost shift-bytes");
105 memcpy(tmp, m+8*i, 8);
107 m[j+i*8] = gf256mul(matrix[8*j+0],tmp[0], POLYNOM)
108 ^ gf256mul(matrix[8*j+1],tmp[1], POLYNOM)
109 ^ gf256mul(matrix[8*j+2],tmp[2], POLYNOM)
110 ^ gf256mul(matrix[8*j+3],tmp[3], POLYNOM)
111 ^ gf256mul(matrix[8*j+4],tmp[4], POLYNOM)
112 ^ gf256mul(matrix[8*j+5],tmp[5], POLYNOM)
113 ^ gf256mul(matrix[8*j+6],tmp[6], POLYNOM)
114 ^ gf256mul(matrix[8*j+7],tmp[7], POLYNOM);
119 cli_putstr("\r\npost mix-bytes");
126 void groestl384_init(groestl384_ctx_t* ctx){
127 memset(ctx->h, 0, 16*8);
128 ctx->h[8*16-1] = (uint8_t)384;
129 ctx->h[8*16-2] = (uint8_t)(384>>8);
133 void groestl512_init(groestl512_ctx_t* ctx){
134 memset(ctx->h, 0, 16*8);
139 void groestl_large_nextBlock(groestl_large_ctx_t* ctx, const void* block){
140 uint8_t tmp1[128], tmp2[128];
144 tmp1[j*8+i] = ((uint8_t*)block)[i*8+j];
148 memcpy(tmp1, block, 128);
149 memcpy(tmp2, tmp1, 128);
150 memxor(tmp1, ctx->h, 128);
151 groestl_large_rounds(tmp1, 0);
152 groestl_large_rounds(tmp2, 1);
153 memxor(ctx->h, tmp1, 128);
154 memxor(ctx->h, tmp2, 128);
158 void groestl_large_lastBlock(groestl_large_ctx_t* ctx, const void* block, uint16_t length_b){
160 while(length_b>=GROESTL_LARGE_BLOCKSIZE){
161 groestl_large_nextBlock(ctx, block);
162 length_b -= GROESTL_LARGE_BLOCKSIZE;
163 block = (uint8_t*)block + GROESTL_LARGE_BLOCKSIZE_B;
165 memset(buffer, 0, 128);
166 memcpy(buffer, block, (length_b+7)/8);
167 buffer[length_b/8] |= 0x80>>(length_b%8);
168 if(length_b>1024-65){
169 groestl_large_nextBlock(ctx, buffer);
170 memset(buffer, 0, 128-4);
173 buffer[128-1] = (uint8_t)(ctx->counter);
174 buffer[128-2] = (uint8_t)((ctx->counter)>>8);
175 buffer[128-3] = (uint8_t)((ctx->counter)>>16);
176 buffer[128-4] = (uint8_t)((ctx->counter)>>24);
177 groestl_large_nextBlock(ctx, buffer);
180 void groestl_large_ctx2hash(void* dest, const groestl_large_ctx_t* ctx, uint16_t outlength_b){
182 memcpy(tmp, ctx->h, 128);
183 groestl_large_rounds(tmp, 0);
184 memxor(tmp, ctx->h, 128);
186 cli_putstr("\r\npost finalisation");
189 memcpy(dest, tmp+128-outlength_b/8, outlength_b/8);
192 void groestl384_ctx2hash(void* dest, const groestl384_ctx_t* ctx){
193 groestl_large_ctx2hash(dest, ctx, 384);
196 void groestl512_ctx2hash(void* dest, const groestl512_ctx_t* ctx){
197 groestl_large_ctx2hash(dest, ctx, 512);
200 void groestl384_nextBlock(groestl384_ctx_t* ctx, const void* block){
201 groestl_large_nextBlock(ctx, block);
204 void groestl512_nextBlock(groestl512_ctx_t* ctx, const void* block){
205 groestl_large_nextBlock(ctx, block);
208 void groestl384_lastBlock(groestl384_ctx_t* ctx, const void* block, uint16_t length_b){
209 groestl_large_lastBlock(ctx, block, length_b);
212 void groestl512_lastBlock(groestl512_ctx_t* ctx, const void* block, uint16_t length_b){
213 groestl_large_lastBlock(ctx, block, length_b);
216 void groestl384(void* dest, const void* msg, uint32_t length_b){
217 groestl_large_ctx_t ctx;
218 groestl384_init(&ctx);
219 while(length_b>=GROESTL_LARGE_BLOCKSIZE){
220 groestl_large_nextBlock(&ctx, msg);
221 length_b -= GROESTL_LARGE_BLOCKSIZE;
222 msg = (uint8_t*)msg + GROESTL_LARGE_BLOCKSIZE_B;
224 groestl_large_lastBlock(&ctx, msg, length_b);
225 groestl_large_ctx2hash(dest, &ctx, 384);
228 void groestl512(void* dest, const void* msg, uint32_t length_b){
229 groestl_large_ctx_t ctx;
230 groestl512_init(&ctx);
231 while(length_b>=GROESTL_LARGE_BLOCKSIZE){
232 groestl_large_nextBlock(&ctx, msg);
233 length_b -= GROESTL_LARGE_BLOCKSIZE;
234 msg = (uint8_t*)msg + GROESTL_LARGE_BLOCKSIZE_B;
236 groestl_large_lastBlock(&ctx, msg, length_b);
237 groestl_large_ctx2hash(dest, &ctx, 512);