nessie_hash_test.c

   1 /* nessie_hash_test.c */
   2 /*
   3     This file is part of the Crypto-avr-lib/microcrypt-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 hashes
  26  *
  27  * */
  28 #include <stdint.h>
  29 #include <string.h>
  30 #include "nessie_hash_test.h"
  31 #include "nessie_common.h"
  32 #include "uart.h"
  33
  34 nessie_hash_ctx_t nessie_hash_ctx;
  35
  36 static
  37 void ascii_hash(char* data, char* desc){
  38         uint8_t ctx[nessie_hash_ctx.ctx_size_B];
  39         uint8_t hash[(nessie_hash_ctx.hashsize_b+7)/8];
  40         uint16_t sl;
  41
  42         uart_putstr_P(PSTR("\r\n                       message="));
  43         uart_putstr(desc);
  44         nessie_hash_ctx.hash_init(ctx);
  45         sl = strlen(data);
  46         while(sl>=nessie_hash_ctx.blocksize_B){
  47                 nessie_hash_ctx.hash_next(data, ctx);
  48                 data += nessie_hash_ctx.blocksize_B;
  49                 sl   -= nessie_hash_ctx.blocksize_B;
  50         }
  51         nessie_hash_ctx.hash_last(data, sl*8, ctx);
  52         nessie_hash_ctx.hash_conv(hash, ctx);
  53         nessie_print_item("hash", hash, (nessie_hash_ctx.hashsize_b+7)/8);
  54 }
  55
  56 // message=1 million times "a"
  57
  58 static
  59 void amillion_hash(void){
  60         uint8_t ctx[nessie_hash_ctx.ctx_size_B];
  61         uint8_t hash[(nessie_hash_ctx.hashsize_b+7)/8];
  62         uint8_t block[nessie_hash_ctx.blocksize_B];
  63         uint32_t n=1000000LL;
  64
  65         uart_putstr_P(PSTR("\r\n                       message="));
  66         uart_putstr_P(PSTR("1 million times \"a\""));
  67         memset(block, 'a', nessie_hash_ctx.blocksize_B);
  68         nessie_hash_ctx.hash_init(ctx);
  69         while(n>=nessie_hash_ctx.blocksize_B){
  70                 nessie_hash_ctx.hash_next(block, ctx);
  71                 n    -= nessie_hash_ctx.blocksize_B;
  72         }
  73         nessie_hash_ctx.hash_last(block, n*8, ctx);
  74         nessie_hash_ctx.hash_conv(hash, ctx);
  75         nessie_print_item("hash", hash, (nessie_hash_ctx.hashsize_b+7)/8);
  76 }
  77
  78
  79 static
  80 void zero_hash(uint16_t n){
  81         uint8_t ctx[nessie_hash_ctx.ctx_size_B];
  82         uint8_t hash[(nessie_hash_ctx.hashsize_b+7)/8];
  83         uint8_t block[nessie_hash_ctx.blocksize_B];
  84
  85         uart_putstr_P(PSTR("\r\n                       message="));
  86         if(n>=10000)
  87                 uart_putc('0'+n/10000);
  88         if(n>=1000)
  89                 uart_putc('0'+(n/1000)%10);
  90         if(n>=100)
  91                 uart_putc('0'+(n/100)%10);
  92         if(n>=10)
  93                 uart_putc('0'+(n/10)%10);
  94         uart_putc('0'+n%10);
  95         uart_putstr_P(PSTR(" zero bits"));
  96
  97         memset(block, 0, nessie_hash_ctx.blocksize_B);
  98         nessie_hash_ctx.hash_init(ctx);
  99         while(n>=nessie_hash_ctx.blocksize_B*8){
 100                 nessie_hash_ctx.hash_next(block, ctx);
 101                 n   -= nessie_hash_ctx.blocksize_B*8;
 102         }
 103         nessie_hash_ctx.hash_last(block, n, ctx);
 104         nessie_hash_ctx.hash_conv(hash, ctx);
 105         nessie_print_item("hash", hash, (nessie_hash_ctx.hashsize_b+7)/8);
 106 }
 107
 108 static
 109 void one_in512_hash(uint16_t pos){
 110         uint8_t ctx[nessie_hash_ctx.ctx_size_B];
 111         uint8_t hash[(nessie_hash_ctx.hashsize_b+7)/8];
 112         uint8_t block[nessie_hash_ctx.blocksize_B];
 113         uint16_t n=512;
 114         char* tab[8]={"80", "40", "20", "10",
 115                       "08", "04", "02", "01" };
 116
 117         pos&=511;
 118         uart_putstr_P(PSTR("\r\n                       message="));
 119         uart_putstr_P(PSTR("512-bit string: "));
 120         if((pos/8) >=10){
 121                 uart_putc('0'+(pos/8/10)%10);
 122         } else {
 123                 uart_putc(' ');
 124         }
 125         uart_putc('0'+(pos/8)%10);
 126         uart_putstr_P(PSTR("*00,"));
 127         uart_putstr(tab[pos&7]);
 128         uart_putc(',');
 129         if(63-(pos/8) >=10){
 130                 uart_putc('0'+((63-pos/8)/10)%10);
 131         } else {
 132                 uart_putc(' ');
 133         }
 134         uart_putc('0'+(63-pos/8)%10);
 135         uart_putstr_P(PSTR("*00"));
 136
 137         /* now the real stuff */
 138         memset(block, 0, 512/8);
 139         block[pos>>3] = 0x80>>(pos&0x7);
 140         nessie_hash_ctx.hash_init(ctx);
 141         while(n>=nessie_hash_ctx.blocksize_B*8){
 142                 nessie_hash_ctx.hash_next(block, ctx);
 143                 n   -= nessie_hash_ctx.blocksize_B*8;
 144         }
 145         nessie_hash_ctx.hash_last(block, n, ctx);
 146         nessie_hash_ctx.hash_conv(hash, ctx);
 147         nessie_print_item("hash", hash, (nessie_hash_ctx.hashsize_b+7)/8);
 148 }
 149
 150 static
 151 void tv4_hash(void){
 152         uint8_t ctx[nessie_hash_ctx.ctx_size_B];
 153         uint8_t hash[(nessie_hash_ctx.hashsize_b+7)/8];
 154         uint8_t block[256/8];
 155         uint16_t n=256;
 156         uint32_t i;
 157
 158         uart_putstr_P(PSTR("\r\n                       message="));
 159         uart_putstr(PSTR("256 zero bits"));
 160         memset(block, 0, 256/8);
 161
 162         nessie_hash_ctx.hash_init(ctx);
 163         while(n>=nessie_hash_ctx.blocksize_B*8){
 164                 nessie_hash_ctx.hash_next(block, ctx);
 165                 n    -= nessie_hash_ctx.blocksize_B*8;
 166         }
 167         nessie_hash_ctx.hash_last(block, n, ctx);
 168         nessie_hash_ctx.hash_conv(hash, ctx);
 169         nessie_print_item("hash", hash, (nessie_hash_ctx.hashsize_b+7)/8);
 170         for(i=1; i<100000L; ++i){ /* this assumes BLOCKSIZE >= HASHSIZE */
 171                 nessie_hash_ctx.hash_init(ctx);
 172                 nessie_hash_ctx.hash_last(hash, nessie_hash_ctx.hashsize_b, ctx);
 173                 nessie_hash_ctx.hash_conv(hash, ctx);
 174         }
 175         nessie_print_item("iterated 100000 times", hash, (nessie_hash_ctx.hashsize_b+7)/8);
 176 }
 177
 178 /*
 179    "" (empty string)
 180    message="a"
 181    message="abc"
 182    message="message digest"
 183    message="abcdefghijklmnopqrstuvwxyz"
 184    message="abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
 185    message="A...Za...z0...9"
 186    message=8 times "1234567890"
 187 */
 188
 189
 190 void nessie_hash_run(void){
 191         uint16_t i;
 192         uint8_t set;
 193
 194         nessie_print_header(nessie_hash_ctx.name, 0, 0, nessie_hash_ctx.hashsize_b, 0, 0);
 195         /* test set 1 */
 196         char* challange[8][2]= {
 197                 {"", "\"\" (empty string)"},
 198                 {"a", "\"a\""},
 199                 {"abc", "\"abc\""},
 200                 {"message digest", "\"message digest\""},
 201                 {"abcdefghijklmnopqrstuvwxyz","\"abcdefghijklmnopqrstuvwxyz\""},
 202                 {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
 203                         "\"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq\""},
 204                 {"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 205                  "abcdefghijklmnopqrstuvwxyz"
 206                  "0123456789"   , "\"A...Za...z0...9\""},
 207                 {"1234567890" "1234567890" "1234567890" "1234567890"
 208                  "1234567890" "1234567890" "1234567890" "1234567890",
 209                  "8 times \"1234567890\""}
 210         };
 211         set=1;
 212         nessie_print_setheader(set);
 213         for(i=0; i<8; ++i){
 214                 nessie_print_set_vector(set, i);
 215                 ascii_hash(challange[i][0], challange[i][1]);
 216         }
 217         nessie_print_set_vector(set, i);
 218         amillion_hash();
 219         /* test set 2 */
 220         set=2;
 221         nessie_print_setheader(set);
 222         for(i=0; i<1024; ++i){
 223                 nessie_print_set_vector(set, i);
 224                 zero_hash(i);
 225         }
 226         /* test set 3 */
 227         set=3;
 228         nessie_print_setheader(set);
 229         for(i=0; i<512; ++i){
 230                 nessie_print_set_vector(set, i);
 231                 one_in512_hash(i);
 232         }
 233         /* test set 4 */
 234         set=4;
 235         nessie_print_setheader(set);
 236         nessie_print_set_vector(set, 0);
 237         tv4_hash();
 238
 239         nessie_print_footer();
 240 }