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) 2006-2015 Daniel Otte (bg@nerilex.org)
   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:  bg@nerilex.org
  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 #include "memxor.h"
  33
  34 nessie_stream_ctx_t nessie_stream_ctx;
  35
  36
  37 #define BLOCKSIZE_B 64
  38
  39
  40 static
  41 void nessie_gen_block(void *ctx, uint8_t *block){
  42         uint16_t i;
  43         for(i=0; i<BLOCKSIZE_B; ++i){
  44                 block[i] = nessie_stream_ctx.cipher_enc(ctx);
  45         }
  46 }
  47
  48 static
  49 void nessie_stream_enc(uint8_t *key){
  50         uint8_t ctx[nessie_stream_ctx.ctx_size_B];
  51         uint8_t buffer[BLOCKSIZE_B];
  52         uint8_t xorbuffer[BLOCKSIZE_B];
  53         uint8_t i;
  54
  55         memset(xorbuffer, 0, BLOCKSIZE_B);
  56
  57         nessie_print_item("key", key, (nessie_stream_ctx.keysize_b+7)/8);
  58
  59         nessie_stream_ctx.cipher_genctx(key, nessie_stream_ctx.keysize_b, ctx);
  60
  61         nessie_gen_block(ctx, buffer);
  62         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  63         nessie_print_item("stream[0..63]", buffer, BLOCKSIZE_B);
  64
  65         for(i=0; i<((192-0)/BLOCKSIZE_B-1); ++i){
  66                 nessie_gen_block(ctx, buffer);
  67                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
  68         }
  69
  70         nessie_gen_block(ctx, buffer);
  71         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  72         nessie_print_item("stream[192..255]", buffer, BLOCKSIZE_B);
  73
  74         nessie_gen_block(ctx, buffer);
  75         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  76         nessie_print_item("stream[256..319]", buffer, BLOCKSIZE_B);
  77
  78         for(i=0; i<((448-256)/BLOCKSIZE_B-1); ++i){
  79                 nessie_gen_block(ctx, buffer);
  80                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
  81         }
  82
  83         nessie_gen_block(ctx, buffer);
  84         memxor(xorbuffer, buffer, BLOCKSIZE_B);
  85         nessie_print_item("stream[448..511]", buffer, BLOCKSIZE_B);
  86
  87         nessie_print_item("stream[0..511]xored", xorbuffer, BLOCKSIZE_B);
  88
  89 }
  90
  91
  92 static
  93 void nessie_stream_enc_large(uint8_t *key){
  94         uint8_t ctx[nessie_stream_ctx.ctx_size_B];
  95         uint8_t buffer[BLOCKSIZE_B];
  96         uint8_t xorbuffer[BLOCKSIZE_B];
  97         uint32_t i;
  98
  99         memset(xorbuffer, 0, BLOCKSIZE_B);
 100
 101         nessie_print_item("key", key, (nessie_stream_ctx.keysize_b+7)/8);
 102
 103         nessie_stream_ctx.cipher_genctx(key, nessie_stream_ctx.keysize_b, ctx);
 104
 105         nessie_gen_block(ctx, buffer);
 106         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 107         nessie_print_item("stream[0..63]", buffer, BLOCKSIZE_B);
 108
 109         for(i=0; i<((65472-0)/BLOCKSIZE_B-1); ++i){
 110                 nessie_gen_block(ctx, buffer);
 111                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
 112                 NESSIE_SEND_ALIVE_A(i);
 113         }
 114
 115         nessie_gen_block(ctx, buffer);
 116         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 117         nessie_print_item("stream[65472..65535]", buffer, BLOCKSIZE_B);
 118
 119         nessie_gen_block(ctx, buffer);
 120         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 121         nessie_print_item("stream[65536..65599]", buffer, BLOCKSIZE_B);
 122
 123         for(i=0; i<((131008-65536)/BLOCKSIZE_B-1); ++i){
 124                 nessie_gen_block(ctx, buffer);
 125                 memxor(xorbuffer, buffer, BLOCKSIZE_B);
 126                 NESSIE_SEND_ALIVE_A(i);
 127         }
 128
 129         nessie_gen_block(ctx, buffer);
 130         memxor(xorbuffer, buffer, BLOCKSIZE_B);
 131         nessie_print_item("stream[131008..131071]", buffer, BLOCKSIZE_B);
 132
 133         nessie_print_item("stream[0..131071]xored", xorbuffer, BLOCKSIZE_B);
 134
 135 }
 136
 137 void nessie_stream_run(void){
 138         uint16_t i;
 139         uint8_t set;
 140         uint8_t key[(nessie_stream_ctx.keysize_b+7)/8];
 141
 142         nessie_print_header(nessie_stream_ctx.name, nessie_stream_ctx.keysize_b,
 143                             0, 0, 0, nessie_stream_ctx.ivsize_b);
 144         /* test set 1 */
 145         set=1;
 146         nessie_print_setheader(set);
 147         for(i=0; i<nessie_stream_ctx.keysize_b; ++i){
 148                 nessie_print_set_vector(set, i);
 149                 memset(key, 0, (nessie_stream_ctx.keysize_b+7)/8);
 150                 key[i/8] |= 0x80>>(i%8);
 151                 nessie_stream_enc(key);
 152         }
 153         /* test set 2 */
 154         set=2;
 155         nessie_print_setheader(set);
 156         for(i=0; i<256; ++i){
 157                 nessie_print_set_vector(set, i);
 158                 memset(key, i, (nessie_stream_ctx.keysize_b+7)/8);
 159                 nessie_stream_enc(key);
 160         }
 161         /* test set 3 */
 162         set=3;
 163         nessie_print_setheader(set);
 164         for(i=0; i<256; ++i){
 165                 uint8_t j;
 166                 nessie_print_set_vector(set, i);
 167                 for(j=0; j<(nessie_stream_ctx.keysize_b+7)/8; ++j){
 168                         key[j]=(i+j)&0xff;
 169                 }
 170                 nessie_stream_enc(key);
 171         }
 172         /* test set 4 */
 173         set=4;
 174         nessie_print_setheader(set);
 175         for(i=0; i<4; ++i){
 176                 uint8_t j;
 177                 nessie_print_set_vector(set, i);
 178                 for(j=0; j<(nessie_stream_ctx.keysize_b+7)/8; ++j){
 179                         key[j]=(i*5+j*0x53)&0xff;
 180                 }
 181                 nessie_stream_enc_large(key);
 182         }
 183
 184         nessie_print_footer();
 185 }