test_src/nessie_stream_test.c

   1 /* nessie_stream_test.c */
   2 /*
   3     This file is part of the AVR-Crypto-Lib.
   4     Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
   5
   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.
  10
  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.
  15
  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/>.
  18 */
  19 /**
  20  *
  21  * author: Daniel Otte
  22  * email:  daniel.otte@rub.de
  23  * license: GPLv3
  24  *
  25  * a suit for running the nessie-tests for streamciphers
  26  *
  27  * */
  28 #include <stdint.h>
  29 #include <string.h>
  30 #include "nessie_stream_test.h"
  31 #include "nessie_common.h"
  32
  33 nessie_stream_ctx_t nessie_stream_ctx;
  34
  35
  36 #define BLOCKSIZE_B 64
  37
  38 static
  39 void memxor(void* dest, void* src, uint8_t length){
  40         while(length--){
  41                 *((uint8_t*)dest) ^= *((uint8_t*)src);
  42                 dest = (uint8_t*)dest +1;
  43                 src  = (uint8_t*)src +1;
  44         }
  45 }
  46
  47
  48 static
  49 void nessie_gen_block(void* ctx, uint8_t* block){
  50         uint16_t i;
  51         for(i=0; i<BLOCKSIZE_B; ++i){
  52                 block[i] = nessie_stream_ctx.cipher_enc(ctx);
  53         }
  54 }
  55
  56 static
  57 void nessie_stream_enc(uint8_t* key){
  58         uint8_t ctx[nessie_stream_ctx.ctx_size_B];
  59         uint8_t buffer[BLOCKSIZE_B];
  60         uint8_t xorbuffer[BLOCKSIZE_B];
  61         uint8_t i;
  62
  63         memset(xorbuffer, 0, BLOCKSIZE_B);
  64
  65         nessie_print_item("key", key, (nessie_stream_ctx.keysize_b+7)/8);
  66
  67         nessie_stream_ctx.cipher_genctx(key, nessie_stream_ctx.keysize_b, ctx);
  68
  69         nessie_gen_block(ctx, buffer);
  70         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  71         nessie_print_item("stream[0..63]", buffer, BLOCKSIZE_B);
  72
  73         for(i=0; i<((192-0)/BLOCKSIZE_B-1); ++i){
  74                 nessie_gen_block(ctx, buffer);
  75                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
  76         }
  77
  78         nessie_gen_block(ctx, buffer);
  79         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  80         nessie_print_item("stream[192..255]", buffer, BLOCKSIZE_B);
  81
  82         nessie_gen_block(ctx, buffer);
  83         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  84         nessie_print_item("stream[256..319]", buffer, BLOCKSIZE_B);
  85
  86         for(i=0; i<((448-256)/BLOCKSIZE_B-1); ++i){
  87                 nessie_gen_block(ctx, buffer);
  88                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
  89         }
  90
  91         nessie_gen_block(ctx, buffer);
  92         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  93         nessie_print_item("stream[448..511]", buffer, BLOCKSIZE_B);
  94
  95         nessie_print_item("stream[0..511]xored", xorbuffer, BLOCKSIZE_B);
  96
  97 }
  98
  99
 100 static
 101 void nessie_stream_enc_large(uint8_t* key){
 102         uint8_t ctx[nessie_stream_ctx.ctx_size_B];
 103         uint8_t buffer[BLOCKSIZE_B];
 104         uint8_t xorbuffer[BLOCKSIZE_B];
 105         uint32_t i;
 106
 107         memset(xorbuffer, 0, BLOCKSIZE_B);
 108
 109         nessie_print_item("key", key, (nessie_stream_ctx.keysize_b+7)/8);
 110
 111         nessie_stream_ctx.cipher_genctx(key, nessie_stream_ctx.keysize_b, ctx);
 112
 113         nessie_gen_block(ctx, buffer);
 114         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 115         nessie_print_item("stream[0..63]", buffer, BLOCKSIZE_B);
 116
 117         for(i=0; i<((65472-0)/BLOCKSIZE_B-1); ++i){
 118                 nessie_gen_block(ctx, buffer);
 119                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
 120                 NESSIE_SEND_ALIVE_A(i);
 121         }
 122
 123         nessie_gen_block(ctx, buffer);
 124         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 125         nessie_print_item("stream[65472..65535]", buffer, BLOCKSIZE_B);
 126
 127         nessie_gen_block(ctx, buffer);
 128         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 129         nessie_print_item("stream[65536..65599]", buffer, BLOCKSIZE_B);
 130
 131         for(i=0; i<((131008-65536)/BLOCKSIZE_B-1); ++i){
 132                 nessie_gen_block(ctx, buffer);
 133                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
 134                 NESSIE_SEND_ALIVE_A(i);
 135         }
 136
 137         nessie_gen_block(ctx, buffer);
 138         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 139         nessie_print_item("stream[131008..131071]", buffer, BLOCKSIZE_B);
 140
 141         nessie_print_item("stream[0..131071]xored", xorbuffer, BLOCKSIZE_B);
 142
 143 }
 144
 145 void nessie_stream_run(void){
 146         uint16_t i;
 147         uint8_t set;
 148         uint8_t key[(nessie_stream_ctx.keysize_b+7)/8];
 149
 150         nessie_print_header(nessie_stream_ctx.name, nessie_stream_ctx.keysize_b,
 151                             0, 0, 0, nessie_stream_ctx.ivsize_b);
 152         /* test set 1 */
 153         set=1;
 154         nessie_print_setheader(set);
 155         for(i=0; i<nessie_stream_ctx.keysize_b; ++i){
 156                 nessie_print_set_vector(set, i);
 157                 memset(key, 0, (nessie_stream_ctx.keysize_b+7)/8);
 158                 key[i/8] |= 0x80>>(i%8);
 159                 nessie_stream_enc(key);
 160         }
 161         /* test set 2 */
 162         set=2;
 163         nessie_print_setheader(set);
 164         for(i=0; i<256; ++i){
 165                 nessie_print_set_vector(set, i);
 166                 memset(key, i, (nessie_stream_ctx.keysize_b+7)/8);
 167                 nessie_stream_enc(key);
 168         }
 169         /* test set 3 */
 170         set=3;
 171         nessie_print_setheader(set);
 172         for(i=0; i<256; ++i){
 173                 uint8_t j;
 174                 nessie_print_set_vector(set, i);
 175                 for(j=0; j<(nessie_stream_ctx.keysize_b+7)/8; ++j){
 176                         key[j]=(i+j)&0xff;
 177                 }
 178                 nessie_stream_enc(key);
 179         }
 180         /* test set 4 */
 181         set=4;
 182         nessie_print_setheader(set);
 183         for(i=0; i<4; ++i){
 184                 uint8_t j;
 185                 nessie_print_set_vector(set, i);
 186                 for(j=0; j<(nessie_stream_ctx.keysize_b+7)/8; ++j){
 187                         key[j]=(i*5+j*0x53)&0xff;
 188                 }
 189                 nessie_stream_enc_large(key);
 190         }
 191
 192         nessie_print_footer();
 193 }