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>
108 lines
3.7 KiB
C
108 lines
3.7 KiB
C
/*
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* An implementation of the CAST128 algorithm as mentioned in RFC2144
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* Copyright (c) 2014 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 <stddef.h>
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#include <string.h>
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#include "libavutil/cast5.h"
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#include "libavutil/log.h"
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#include "libavutil/mem.h"
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int main(int argc, char** argv)
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{
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static const uint8_t Key[3][16] = {
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{0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9a},
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{0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45},
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{0x01, 0x23, 0x45, 0x67, 0x12}
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};
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static const uint8_t rpt[8] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef};
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static const uint8_t rct[3][8] = {
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{0x23, 0x8b, 0x4f, 0xe5, 0x84, 0x7e, 0x44, 0xb2},
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{0xeb, 0x6a, 0x71, 0x1a, 0x2c, 0x02, 0x27, 0x1b},
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{0x7a, 0xc8, 0x16, 0xd1, 0x6e, 0x9b, 0x30, 0x2e}
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};
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static const uint8_t rct2[2][16] = {
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{0xee, 0xa9, 0xd0, 0xa2, 0x49, 0xfd, 0x3b, 0xa6, 0xb3, 0x43, 0x6f, 0xb8, 0x9d, 0x6d, 0xca, 0x92},
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{0xb2, 0xc9, 0x5e, 0xb0, 0x0c, 0x31, 0xad, 0x71, 0x80, 0xac, 0x05, 0xb8, 0xe8, 0x3d, 0x69, 0x6e}
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};
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static const uint8_t iv[8] = {0xee, 0xa9, 0xd0, 0xa2, 0x49, 0xfd, 0x3b, 0xa6};
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static uint8_t rpt2[2][16];
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int i, j, err = 0;
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static const int key_bits[3] = {128, 80, 40};
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uint8_t temp[8];
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struct AVCAST5 *cs;
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cs = av_cast5_alloc();
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if (!cs)
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return 1;
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for (j = 0; j < 3; j++){
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av_cast5_init(cs, Key[j], key_bits[j]);
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av_cast5_crypt(cs, temp, rpt, 1, 0);
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for (i = 0;i < 8; 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_cast5_crypt(cs, temp, rct[j], 1, 1);
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for (i =0; i < 8; 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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memcpy(rpt2[0], Key[0], 16);
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memcpy(rpt2[1], Key[0], 16);
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for (i = 0; i < 1000000; i++){
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av_cast5_init(cs, rpt2[1], 128);
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av_cast5_crypt(cs, rpt2[0], rpt2[0], 2, 0);
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av_cast5_init(cs, rpt2[0], 128);
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av_cast5_crypt(cs, rpt2[1], rpt2[1], 2, 0);
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}
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for (j = 0; j < 2; j++) {
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for (i = 0; i < 16; i++) {
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if (rct2[j][i] != rpt2[j][i]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct2[j][i], rpt2[j][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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av_cast5_init(cs, Key[j], key_bits[j]);
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memcpy(temp, iv, 8);
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av_cast5_crypt2(cs, rpt2[0], rct2[0], 2, temp, 0);
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memcpy(temp, iv, 8);
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av_cast5_crypt2(cs, rpt2[0], rpt2[0], 2, temp, 1);
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for (i = 0; i < 16; i++) {
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if (rct2[0][i] != rpt2[0][i]) {
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av_log(NULL, AV_LOG_ERROR, "%d %02x %02x\n", i, rct2[0][i], rpt2[0][i]);
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err = 1;
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}
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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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