135 lines
4.2 KiB
C
135 lines
4.2 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/mem_internal.h"
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#include "libavutil/timer.h"
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#include "libavutil/des.c"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libavutil/time.h"
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static uint64_t rand64(void)
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{
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uint64_t r = rand();
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r = (r << 32) | rand();
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return r;
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}
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static const uint8_t test_key[] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0 };
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static const DECLARE_ALIGNED(8, uint8_t, plain)[] = { 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
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static const DECLARE_ALIGNED(8, uint8_t, crypt_ref)[] = { 0x4a, 0xb6, 0x5b, 0x3d, 0x4b, 0x06, 0x15, 0x18 };
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static DECLARE_ALIGNED(8, uint8_t, tmp)[8];
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static DECLARE_ALIGNED(8, uint8_t, large_buffer)[10002][8];
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static const uint8_t cbc_key[] = {
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0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
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0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01,
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0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23
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};
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static int run_test(int cbc, int decrypt)
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{
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AVDES d;
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int delay = cbc && !decrypt ? 2 : 1;
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uint64_t res;
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AV_WB64(large_buffer[0], 0x4e6f772069732074ULL);
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AV_WB64(large_buffer[1], 0x1234567890abcdefULL);
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AV_WB64(tmp, 0x1234567890abcdefULL);
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av_des_init(&d, cbc_key, 192, decrypt);
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av_des_crypt(&d, large_buffer[delay], large_buffer[0], 10000, cbc ? tmp : NULL, decrypt);
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res = AV_RB64(large_buffer[9999 + delay]);
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if (cbc) {
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if (decrypt)
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return res == 0xc5cecf63ecec514cULL;
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else
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return res == 0xcb191f85d1ed8439ULL;
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} else {
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if (decrypt)
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return res == 0x8325397644091a0aULL;
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else
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return res == 0xdd17e8b8b437d232ULL;
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}
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}
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union word_byte {
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uint64_t word;
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uint8_t byte[8];
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};
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int main(void)
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{
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AVDES d;
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int i;
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union word_byte key[3], data, ct;
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uint64_t roundkeys[16];
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srand(av_gettime());
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key[0].word = AV_RB64(test_key);
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data.word = AV_RB64(plain);
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gen_roundkeys(roundkeys, key[0].word);
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if (des_encdec(data.word, roundkeys, 0) != AV_RB64(crypt_ref)) {
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printf("Test 1 failed\n");
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return 1;
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}
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av_des_init(&d, test_key, 64, 0);
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av_des_crypt(&d, tmp, plain, 1, NULL, 0);
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if (memcmp(tmp, crypt_ref, sizeof(crypt_ref))) {
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printf("Public API decryption failed\n");
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return 1;
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}
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if (!run_test(0, 0) || !run_test(0, 1) || !run_test(1, 0) || !run_test(1, 1)) {
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printf("Partial Monte-Carlo test failed\n");
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return 1;
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}
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for (i = 0; i < 1000; i++) {
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key[0].word = rand64();
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key[1].word = rand64();
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key[2].word = rand64();
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data.word = rand64();
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av_des_init(&d, key[0].byte, 192, 0);
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av_des_crypt(&d, ct.byte, data.byte, 1, NULL, 0);
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av_des_init(&d, key[0].byte, 192, 1);
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av_des_crypt(&d, ct.byte, ct.byte, 1, NULL, 1);
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if (ct.word != data.word) {
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printf("Test 2 failed\n");
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return 1;
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}
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}
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#ifdef GENTABLES
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printf("static const uint32_t S_boxes_P_shuffle[8][64] = {\n");
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for (i = 0; i < 8; i++) {
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int j;
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printf(" {");
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for (j = 0; j < 64; j++) {
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uint32_t v = S_boxes[i][j >> 1];
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v = j & 1 ? v >> 4 : v & 0xf;
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v <<= 28 - 4 * i;
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v = shuffle(v, P_shuffle, sizeof(P_shuffle));
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printf((j & 7) == 0 ? "\n " : " ");
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printf("0x%08X,", v);
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}
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printf("\n },\n");
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}
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printf("};\n");
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#endif
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return 0;
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}
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