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
68 void shift_columns(uint8_t* a, const uint8_t *shifts){
80 a[i+((j-s+16)%16)*8] = tmp[j];
85 static const uint8_t p_shifts[8] = { 0, 1, 2, 3, 4, 5, 6, 11 };
86 static const uint8_t q_shifts[8] = { 1, 3, 5, 11, 0, 2, 4, 6 };
89 void groestl_large_rounds(uint8_t *m, uint8_t q){
92 for(r=0; r<ROUNDS; ++r){
95 ((uint32_t*)m)[i] ^= 0xffffffff;
98 m[i*8+7] ^= r ^ (i<<4);
102 m[i*8] ^= r ^ (i<<4);
107 cli_putstr("\r\npost add-const");
111 for(i=0;i<16*8; ++i){
112 m[i] = aes_sbox[m[i]];
115 shift_columns(m, q_shifts);
117 shift_columns(m, p_shifts);
122 cli_putstr("\r\npost shift-bytes");
127 memcpy(tmp, m+8*i, 8);
129 m[j+i*8] = gf256mul(matrix[8*j+0],tmp[0], POLYNOM)
130 ^ gf256mul(matrix[8*j+1],tmp[1], POLYNOM)
131 ^ gf256mul(matrix[8*j+2],tmp[2], POLYNOM)
132 ^ gf256mul(matrix[8*j+3],tmp[3], POLYNOM)
133 ^ gf256mul(matrix[8*j+4],tmp[4], POLYNOM)
134 ^ gf256mul(matrix[8*j+5],tmp[5], POLYNOM)
135 ^ gf256mul(matrix[8*j+6],tmp[6], POLYNOM)
136 ^ gf256mul(matrix[8*j+7],tmp[7], POLYNOM);
141 cli_putstr("\r\npost mix-bytes");
148 void groestl384_init(groestl384_ctx_t* ctx){
149 memset(ctx->h, 0, 16*8);
150 ctx->h[8*16-1] = (uint8_t)384;
151 ctx->h[8*16-2] = (uint8_t)(384>>8);
155 void groestl512_init(groestl512_ctx_t* ctx){
156 memset(ctx->h, 0, 16*8);
161 void groestl_large_nextBlock(groestl_large_ctx_t* ctx, const void* block){
162 uint8_t tmp1[128], tmp2[128];
166 tmp1[j*8+i] = ((uint8_t*)block)[i*8+j];
170 memcpy(tmp1, block, 128);
171 memcpy(tmp2, tmp1, 128);
172 memxor(tmp1, ctx->h, 128);
173 groestl_large_rounds(tmp1, 0);
174 groestl_large_rounds(tmp2, 1);
175 memxor(ctx->h, tmp1, 128);
176 memxor(ctx->h, tmp2, 128);
180 void groestl_large_lastBlock(groestl_large_ctx_t* ctx, const void* block, uint16_t length_b){
182 while(length_b>=GROESTL_LARGE_BLOCKSIZE){
183 groestl_large_nextBlock(ctx, block);
184 length_b -= GROESTL_LARGE_BLOCKSIZE;
185 block = (uint8_t*)block + GROESTL_LARGE_BLOCKSIZE_B;
187 memset(buffer, 0, 128);
188 memcpy(buffer, block, (length_b+7)/8);
189 buffer[length_b/8] |= 0x80>>(length_b%8);
190 if(length_b>1024-65){
191 groestl_large_nextBlock(ctx, buffer);
192 memset(buffer, 0, 128-4);
195 buffer[128-1] = (uint8_t)(ctx->counter);
196 buffer[128-2] = (uint8_t)((ctx->counter)>>8);
197 buffer[128-3] = (uint8_t)((ctx->counter)>>16);
198 buffer[128-4] = (uint8_t)((ctx->counter)>>24);
199 groestl_large_nextBlock(ctx, buffer);
202 void groestl_large_ctx2hash(void* dest, const groestl_large_ctx_t* ctx, uint16_t outlength_b){
204 memcpy(tmp, ctx->h, 128);
205 groestl_large_rounds(tmp, 0);
206 memxor(tmp, ctx->h, 128);
208 cli_putstr("\r\npost finalisation");
211 memcpy(dest, tmp+128-outlength_b/8, outlength_b/8);
214 void groestl384_ctx2hash(void* dest, const groestl384_ctx_t* ctx){
215 groestl_large_ctx2hash(dest, ctx, 384);
218 void groestl512_ctx2hash(void* dest, const groestl512_ctx_t* ctx){
219 groestl_large_ctx2hash(dest, ctx, 512);
222 void groestl384_nextBlock(groestl384_ctx_t* ctx, const void* block){
223 groestl_large_nextBlock(ctx, block);
226 void groestl512_nextBlock(groestl512_ctx_t* ctx, const void* block){
227 groestl_large_nextBlock(ctx, block);
230 void groestl384_lastBlock(groestl384_ctx_t* ctx, const void* block, uint16_t length_b){
231 groestl_large_lastBlock(ctx, block, length_b);
234 void groestl512_lastBlock(groestl512_ctx_t* ctx, const void* block, uint16_t length_b){
235 groestl_large_lastBlock(ctx, block, length_b);
238 void groestl384(void* dest, const void* msg, uint32_t length_b){
239 groestl_large_ctx_t ctx;
240 groestl384_init(&ctx);
241 while(length_b>=GROESTL_LARGE_BLOCKSIZE){
242 groestl_large_nextBlock(&ctx, msg);
243 length_b -= GROESTL_LARGE_BLOCKSIZE;
244 msg = (uint8_t*)msg + GROESTL_LARGE_BLOCKSIZE_B;
246 groestl_large_lastBlock(&ctx, msg, length_b);
247 groestl_large_ctx2hash(dest, &ctx, 384);
250 void groestl512(void* dest, const void* msg, uint32_t length_b){
251 groestl_large_ctx_t ctx;
252 groestl512_init(&ctx);
253 while(length_b>=GROESTL_LARGE_BLOCKSIZE){
254 groestl_large_nextBlock(&ctx, msg);
255 length_b -= GROESTL_LARGE_BLOCKSIZE;
256 msg = (uint8_t*)msg + GROESTL_LARGE_BLOCKSIZE_B;
258 groestl_large_lastBlock(&ctx, msg, length_b);
259 groestl_large_ctx2hash(dest, &ctx, 512);