mirror of
https://git.ffmpeg.org/ffmpeg.git
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321a3c244d
It has been included since af5f434f8c
for deprecation reasons, but removing it has been forgotten after
it had served is purpose. So remove it.
For convenience, include version.h instead as LIBAVUTIL_VERSION_INT
is supposed to be used when creating AVClasses.
Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
106 lines
4.1 KiB
C
106 lines
4.1 KiB
C
/*
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* An implementation of the TwoFish algorithm
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* Copyright (c) 2015 Supraja Meedinti
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*
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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/log.h"
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#include "libavutil/mem.h"
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#include "libavutil/twofish.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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int main(int argc, char *argv[])
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{
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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
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};
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const uint8_t rct[6][16] = {
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{0x9f, 0x58, 0x9f, 0x5c, 0xf6, 0x12, 0x2c, 0x32, 0xb6, 0xbf, 0xec, 0x2f, 0x2a, 0xe8, 0xc3, 0x5a},
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{0xcf, 0xd1, 0xd2, 0xe5, 0xa9, 0xbe, 0x9c, 0xdf, 0x50, 0x1f, 0x13, 0xb8, 0x92, 0xbd, 0x22, 0x48},
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{0x37, 0x52, 0x7b, 0xe0, 0x05, 0x23, 0x34, 0xb8, 0x9f, 0x0c, 0xfc, 0xca, 0xe8, 0x7c, 0xfa, 0x20},
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{0x5d, 0x9d, 0x4e, 0xef, 0xfa, 0x91, 0x51, 0x57, 0x55, 0x24, 0xf1, 0x15, 0x81, 0x5a, 0x12, 0xe0},
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{0xe7, 0x54, 0x49, 0x21, 0x2b, 0xee, 0xf9, 0xf4, 0xa3, 0x90, 0xbd, 0x86, 0x0a, 0x64, 0x09, 0x41},
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{0x37, 0xfe, 0x26, 0xff, 0x1c, 0xf6, 0x61, 0x75, 0xf5, 0xdd, 0xf4, 0xc3, 0x3b, 0x97, 0xa2, 0x05}
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};
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uint8_t temp[32], iv[16], rpt[32] = {0};
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const int kbits[3] = {128, 192, 256};
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int i, j, k, err = 0;
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struct AVTWOFISH *cs;
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cs = av_twofish_alloc();
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if (!cs)
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return 1;
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for (j = 1; j < 3; j++) {
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av_twofish_init(cs, Key, kbits[j]);
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av_twofish_crypt(cs, temp, rpt, 1, NULL, 0);
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for (i = 0; i < 16; i++) {
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if (rct[j][i] != temp[i]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct[j][i], temp[i]);
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err = 1;
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}
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}
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av_twofish_crypt(cs, temp, rct[j], 1, NULL, 1);
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for (i = 0; i < 16; i++) {
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if (rpt[i] != temp[i]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rpt[i], temp[i]);
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err = 1;
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}
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}
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}
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for (j = 0; j < 3; j++) {
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memset(Key, 0, sizeof(Key));
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memset(rpt, 0, sizeof(rpt));
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for (i = 1; i < 50; i++) {
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av_twofish_init(cs, Key, kbits[j]);
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av_twofish_crypt(cs, temp, rpt, 1, NULL, 0);
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memcpy(Key+16,Key,(kbits[j]-128) >> 3);
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memcpy(Key,rpt,16);
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memcpy(rpt,temp,16);
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av_twofish_crypt(cs, temp, temp, 1, NULL, 1);
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for (k = 0; k < 16; k++) {
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// Need to compare to Key here, because the plaintext comes
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// from rpt but was moved over to Key.
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if (Key[k] != temp[k]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", k, Key[k], temp[k]);
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err = 1;
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}
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}
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}
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for (i = 0; i < 16; i++) {
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if (rct[3 + j][i] != rpt[i]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct[3 + j][i], rpt[i]);
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err = 1;
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}
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}
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}
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memset(rpt, 0, sizeof(rpt));
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memcpy(iv, "HALLO123HALLO123", 16);
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av_twofish_crypt(cs, temp, rpt, 2, iv, 0);
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memcpy(iv, "HALLO123HALLO123", 16);
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av_twofish_crypt(cs, temp, temp, 2, iv, 1);
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for (i = 0; i < 32; i++) {
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if (rpt[i] != temp[i]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rpt[i], temp[i]);
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err = 1;
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}
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}
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av_free(cs);
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return err;
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}
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