LCOV - code coverage report
Current view: top level - libavutil/tests - twofish.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 36 45 80.0 %
Date: 2017-10-18 21:45:51 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * An implementation of the TwoFish algorithm
       3             :  * Copyright (c) 2015 Supraja Meedinti
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg is free software; you can redistribute it and/or
       8             :  * modify it under the terms of the GNU Lesser General Public
       9             :  * License as published by the Free Software Foundation; either
      10             :  * version 2.1 of the License, or (at your option) any later version.
      11             :  *
      12             :  * FFmpeg is distributed in the hope that it will be useful,
      13             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :  * Lesser General Public License for more details.
      16             :  *
      17             :  * You should have received a copy of the GNU Lesser General Public
      18             :  * License along with FFmpeg; if not, write to the Free Software
      19             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20             :  */
      21             : 
      22             : #include "libavutil/log.h"
      23             : #include "libavutil/twofish.h"
      24             : 
      25             : #include <stdio.h>
      26             : #include <stdlib.h>
      27             : 
      28           1 : int main(int argc, char *argv[])
      29             : {
      30           1 :     uint8_t Key[32] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff
      31             :     };
      32           1 :     const uint8_t rct[6][16] = {
      33             :         {0x9f, 0x58, 0x9f, 0x5c, 0xf6, 0x12, 0x2c, 0x32, 0xb6, 0xbf, 0xec, 0x2f, 0x2a, 0xe8, 0xc3, 0x5a},
      34             :         {0xcf, 0xd1, 0xd2, 0xe5, 0xa9, 0xbe, 0x9c, 0xdf, 0x50, 0x1f, 0x13, 0xb8, 0x92, 0xbd, 0x22, 0x48},
      35             :         {0x37, 0x52, 0x7b, 0xe0, 0x05, 0x23, 0x34, 0xb8, 0x9f, 0x0c, 0xfc, 0xca, 0xe8, 0x7c, 0xfa, 0x20},
      36             :         {0x5d, 0x9d, 0x4e, 0xef, 0xfa, 0x91, 0x51, 0x57, 0x55, 0x24, 0xf1, 0x15, 0x81, 0x5a, 0x12, 0xe0},
      37             :         {0xe7, 0x54, 0x49, 0x21, 0x2b, 0xee, 0xf9, 0xf4, 0xa3, 0x90, 0xbd, 0x86, 0x0a, 0x64, 0x09, 0x41},
      38             :         {0x37, 0xfe, 0x26, 0xff, 0x1c, 0xf6, 0x61, 0x75, 0xf5, 0xdd, 0xf4, 0xc3, 0x3b, 0x97, 0xa2, 0x05}
      39             :     };
      40           1 :     uint8_t temp[32], iv[16], rpt[32] = {0};
      41           1 :     const int kbits[3] = {128, 192, 256};
      42           1 :     int i, j, err = 0;
      43             :     struct AVTWOFISH *cs;
      44           1 :     cs = av_twofish_alloc();
      45           1 :     if (!cs)
      46           0 :         return 1;
      47           3 :     for (j = 1; j < 3; j++) {
      48           2 :         av_twofish_init(cs, Key, kbits[j]);
      49           2 :         av_twofish_crypt(cs, temp, rpt, 1, NULL, 0);
      50          34 :         for (i = 0; i < 16; i++) {
      51          32 :             if (rct[j][i] != temp[i]) {
      52           0 :                 av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct[j][i], temp[i]);
      53           0 :                 err = 1;
      54             :             }
      55             :         }
      56           2 :         av_twofish_crypt(cs, temp, rct[j], 1, NULL, 1);
      57          34 :         for (i = 0; i < 16; i++) {
      58          32 :             if (rpt[i] != temp[i]) {
      59           0 :                 av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rpt[i], temp[i]);
      60           0 :                 err = 1;
      61             :             }
      62             :         }
      63             :     }
      64           4 :     for (j = 0; j < 3; j++) {
      65           3 :         memset(Key, 0, sizeof(Key));
      66           3 :         memset(rpt, 0, sizeof(rpt));
      67         150 :         for (i = 1; i < 50; i++) {
      68         147 :             av_twofish_init(cs, Key, kbits[j]);
      69         147 :             av_twofish_crypt(cs, temp, rpt, 1, NULL, 0);
      70         147 :             memcpy(Key+16,Key,(kbits[j]-128) >> 3);
      71         147 :             memcpy(Key,rpt,16);
      72         147 :             memcpy(rpt,temp,16);
      73             :         }
      74          51 :         for (i = 0; i < 16; i++) {
      75          48 :             if (rct[3 + j][i] != temp[i]) {
      76           0 :                 av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct[3 + j][i], temp[i]);
      77           0 :                 err = 1;
      78             :             }
      79             :         }
      80             :     }
      81           1 :     memset(rpt, 0, sizeof(rpt));
      82           1 :     memcpy(iv, "HALLO123HALLO123", 16);
      83           1 :     av_twofish_crypt(cs, temp, rpt, 2, iv, 0);
      84           1 :     memcpy(iv, "HALLO123HALLO123", 16);
      85           1 :     av_twofish_crypt(cs, temp, temp, 2, iv, 1);
      86          33 :     for (i = 0; i < 32; i++) {
      87          32 :         if (rpt[i] != temp[i]) {
      88           0 :             av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rpt[i], temp[i]);
      89           0 :             err = 1;
      90             :         }
      91             :     }
      92           1 :     av_free(cs);
      93           1 :     return err;
      94             : }

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