LCOV - code coverage report
Current view: top level - src/libavutil/tests - xtea.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 28 37 75.7 %
Date: 2017-01-22 02:20:28 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * This file is part of FFmpeg.
       3             :  *
       4             :  * FFmpeg is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Lesser General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2.1 of the License, or (at your option) any later version.
       8             :  *
       9             :  * FFmpeg is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Lesser General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public
      15             :  * License along with FFmpeg; if not, write to the Free Software
      16             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      17             :  */
      18             : 
      19             : #include <stdint.h>
      20             : #include <stdio.h>
      21             : #include <stdlib.h>
      22             : #include <string.h>
      23             : 
      24             : #include "libavutil/intreadwrite.h"
      25             : #include "libavutil/mem.h"
      26             : #include "libavutil/xtea.h"
      27             : 
      28             : #define XTEA_NUM_TESTS 6
      29             : 
      30             : static const uint8_t xtea_test_key[XTEA_NUM_TESTS][16] = {
      31             :     { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
      32             :       0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
      33             :     { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
      34             :       0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
      35             :     { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
      36             :       0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
      37             :     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      38             :       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
      39             :     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      40             :       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
      41             :     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      42             :       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
      43             : };
      44             : 
      45             : static const uint8_t xtea_test_pt[XTEA_NUM_TESTS][8] = {
      46             :     { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
      47             :     { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
      48             :     { 0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f },
      49             :     { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
      50             :     { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
      51             :     { 0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55 }
      52             : };
      53             : 
      54             : static const uint8_t xtea_test_ct[XTEA_NUM_TESTS][8] = {
      55             :     { 0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5 },
      56             :     { 0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8 },
      57             :     { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
      58             :     { 0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5 },
      59             :     { 0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d },
      60             :     { 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }
      61             : };
      62             : 
      63          36 : static void test_xtea(AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
      64             :                       const uint8_t *ref, int len, uint8_t *iv, int dir,
      65             :                       const char *test,
      66             :                       void (*crypt)(AVXTEA *, uint8_t *, const uint8_t *, int, uint8_t *, int))
      67             : {
      68          36 :     crypt(ctx, dst, src, len, iv, dir);
      69          36 :     if (memcmp(dst, ref, 8*len)) {
      70             :         int i;
      71           0 :         printf("%s failed\ngot      ", test);
      72           0 :         for (i = 0; i < 8*len; i++)
      73           0 :             printf("%02x ", dst[i]);
      74           0 :         printf("\nexpected ");
      75           0 :         for (i = 0; i < 8*len; i++)
      76           0 :             printf("%02x ", ref[i]);
      77           0 :         printf("\n");
      78           0 :         exit(1);
      79             :     }
      80          36 : }
      81             : 
      82           1 : int main(void)
      83             : {
      84             :     uint8_t buf[16], iv[8];
      85             :     int i, j;
      86             :     static const uint8_t src[32] = "HelloWorldHelloWorldHelloWorld";
      87             :     uint8_t ct[32];
      88             :     uint8_t pl[32];
      89           1 :     AVXTEA *ctx = av_xtea_alloc();
      90           1 :     if (!ctx)
      91           0 :         return 1;
      92             : 
      93           7 :     for (i = 0; i < XTEA_NUM_TESTS; i++) {
      94           6 :         av_xtea_init(ctx, xtea_test_key[i]);
      95             : 
      96           6 :         test_xtea(ctx, buf, xtea_test_pt[i], xtea_test_ct[i], 1, NULL, 0, "encryption", av_xtea_crypt);
      97           6 :         test_xtea(ctx, buf, xtea_test_ct[i], xtea_test_pt[i], 1, NULL, 1, "decryption", av_xtea_crypt);
      98             : 
      99          30 :         for (j = 0; j < 4; j++)
     100          24 :             AV_WL32(&buf[4*j], AV_RB32(&xtea_test_key[i][4*j]));
     101           6 :         av_xtea_le_init(ctx, buf);
     102          18 :         for (j = 0; j < 2; j++) {
     103          12 :             AV_WL32(&ct[4*j], AV_RB32(&xtea_test_ct[i][4*j]));
     104          12 :             AV_WL32(&pl[4*j], AV_RB32(&xtea_test_pt[i][4*j]));
     105             :         }
     106           6 :         test_xtea(ctx, buf, pl, ct, 1, NULL, 0, "encryption", av_xtea_le_crypt);
     107           6 :         test_xtea(ctx, buf, ct, pl, 1, NULL, 1, "decryption", av_xtea_le_crypt);
     108             : 
     109             :         /* encrypt */
     110           6 :         memcpy(iv, "HALLO123", 8);
     111           6 :         av_xtea_crypt(ctx, ct, src, 4, iv, 0);
     112             : 
     113             :         /* decrypt into pl */
     114           6 :         memcpy(iv, "HALLO123", 8);
     115           6 :         test_xtea(ctx, pl, ct, src, 4, iv, 1, "CBC decryption", av_xtea_crypt);
     116             : 
     117           6 :         memcpy(iv, "HALLO123", 8);
     118           6 :         test_xtea(ctx, ct, ct, src, 4, iv, 1, "CBC inplace decryption", av_xtea_crypt);
     119             :     }
     120             : 
     121           1 :     printf("Test encryption/decryption success.\n");
     122           1 :     av_free(ctx);
     123             : 
     124           1 :     return 0;
     125             : }

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