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 30static 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 45static 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 54static 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 63static 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 crypt(ctx, dst, src, len, iv, dir); 69 if (memcmp(dst, ref, 8*len)) { 70 int i; 71 printf("%s failed\ngot ", test); 72 for (i = 0; i < 8*len; i++) 73 printf("%02x ", dst[i]); 74 printf("\nexpected "); 75 for (i = 0; i < 8*len; i++) 76 printf("%02x ", ref[i]); 77 printf("\n"); 78 exit(1); 79 } 80} 81 82int 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 AVXTEA *ctx = av_xtea_alloc(); 90 if (!ctx) 91 return 1; 92 93 for (i = 0; i < XTEA_NUM_TESTS; i++) { 94 av_xtea_init(ctx, xtea_test_key[i]); 95 96 test_xtea(ctx, buf, xtea_test_pt[i], xtea_test_ct[i], 1, NULL, 0, "encryption", av_xtea_crypt); 97 test_xtea(ctx, buf, xtea_test_ct[i], xtea_test_pt[i], 1, NULL, 1, "decryption", av_xtea_crypt); 98 99 for (j = 0; j < 4; j++) 100 AV_WL32(&buf[4*j], AV_RB32(&xtea_test_key[i][4*j])); 101 av_xtea_le_init(ctx, buf); 102 for (j = 0; j < 2; j++) { 103 AV_WL32(&ct[4*j], AV_RB32(&xtea_test_ct[i][4*j])); 104 AV_WL32(&pl[4*j], AV_RB32(&xtea_test_pt[i][4*j])); 105 } 106 test_xtea(ctx, buf, pl, ct, 1, NULL, 0, "encryption", av_xtea_le_crypt); 107 test_xtea(ctx, buf, ct, pl, 1, NULL, 1, "decryption", av_xtea_le_crypt); 108 109 /* encrypt */ 110 memcpy(iv, "HALLO123", 8); 111 av_xtea_crypt(ctx, ct, src, 4, iv, 0); 112 113 /* decrypt into pl */ 114 memcpy(iv, "HALLO123", 8); 115 test_xtea(ctx, pl, ct, src, 4, iv, 1, "CBC decryption", av_xtea_crypt); 116 117 memcpy(iv, "HALLO123", 8); 118 test_xtea(ctx, ct, ct, src, 4, iv, 1, "CBC inplace decryption", av_xtea_crypt); 119 } 120 121 printf("Test encryption/decryption success.\n"); 122 av_free(ctx); 123 124 return 0; 125} 126