FFmpeg
camellia.c
Go to the documentation of this file.
1 /*
2  * An implementation of the CAMELLIA algorithm as mentioned in RFC3713
3  * Copyright (c) 2014 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/camellia.h"
23 #include "libavutil/log.h"
24 
25 int main(int argc, char *argv[])
26 {
27  const uint8_t Key[3][32] = {
28  {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10},
29  {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77},
30  {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  const uint8_t rct[3][16] = {
33  {0x67, 0x67, 0x31, 0x38, 0x54, 0x96, 0x69, 0x73, 0x08, 0x57, 0x06, 0x56, 0x48, 0xea, 0xbe, 0x43},
34  {0xb4, 0x99, 0x34, 0x01, 0xb3, 0xe9,0x96, 0xf8, 0x4e, 0xe5, 0xce, 0xe7, 0xd7, 0x9b, 0x09, 0xb9},
35  {0x9a, 0xcc, 0x23, 0x7d, 0xff, 0x16, 0xd7, 0x6c, 0x20, 0xef, 0x7c, 0x91, 0x9e, 0x3a, 0x75, 0x09}
36  };
37  const uint8_t rpt[32] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10};
38  const int kbits[3] = {128, 192, 256};
39  int i, j, err = 0;
40  uint8_t temp[32], iv[16];
41  struct AVCAMELLIA *cs;
42  cs = av_camellia_alloc();
43  if (!cs)
44  return 1;
45  for (j = 0; j < 3; j++) {
46  av_camellia_init(cs, Key[j], kbits[j]);
47  av_camellia_crypt(cs, temp, rpt, 1, NULL, 0);
48  for (i = 0; i < 16; i++) {
49  if (rct[j][i] != temp[i]) {
50  av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct[j][i], temp[i]);
51  err = 1;
52  }
53  }
54  av_camellia_crypt(cs, temp, rct[j], 1, NULL, 1);
55  for (i = 0; i < 16; i++) {
56  if (rpt[i] != temp[i]) {
57  av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rpt[i], temp[i]);
58  err = 1;
59  }
60  }
61  }
62  av_camellia_init(cs, Key[0], 128);
63  memcpy(iv, "HALLO123HALLO123", 16);
64  av_camellia_crypt(cs, temp, rpt, 2, iv, 0);
65  memcpy(iv, "HALLO123HALLO123", 16);
66  av_camellia_crypt(cs, temp, temp, 2, iv, 1);
67  for (i = 0; i < 32; i++) {
68  if (rpt[i] != temp[i]) {
69  av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rpt[i], temp[i]);
70  err = 1;
71  }
72  }
73  av_free(cs);
74  return err;
75 }
#define NULL
Definition: coverity.c:32
else temp
Definition: vf_mcdeint.c:256
struct AVCAMELLIA * av_camellia_alloc(void)
Allocate an AVCAMELLIA context To free the struct: av_free(ptr)
Definition: camellia.c:347
uint8_t
Public header for libavutil CAMELLIA algorithm.
void av_camellia_crypt(AVCAMELLIA *cs, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
Encrypt or decrypt a buffer using a previously initialized context.
Definition: camellia.c:393
#define av_log(a,...)
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
av_cold int av_camellia_init(AVCAMELLIA *cs, const uint8_t *key, int key_bits)
Initialize an AVCAMELLIA context.
Definition: camellia.c:352
int main(int argc, char *argv[])
Definition: camellia.c:25
#define av_free(p)