FFmpeg
libavutil
tests
aes_ctr.c
Go to the documentation of this file.
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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 <string.h>
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#include "
libavutil/log.h
"
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#include "
libavutil/mem_internal.h
"
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#include "
libavutil/aes_ctr.h
"
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static
const
DECLARE_ALIGNED
(8, uint8_t,
plain
)[] = {
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0x6d, 0x6f, 0x73, 0x74, 0x20, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d
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};
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static
DECLARE_ALIGNED
(8, uint8_t,
tmp
)[11];
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int
main
(
void
)
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{
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int
ret
= 1;
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struct
AVAESCTR
*ae, *ad;
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const
uint8_t *iv;
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ae =
av_aes_ctr_alloc
();
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ad =
av_aes_ctr_alloc
();
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if
(!ae || !ad)
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goto
ERROR
;
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if
(
av_aes_ctr_init
(ae, (
const
uint8_t*)
"0123456789abcdef"
) < 0)
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goto
ERROR
;
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if
(
av_aes_ctr_init
(ad, (
const
uint8_t*)
"0123456789abcdef"
) < 0)
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goto
ERROR
;
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av_aes_ctr_set_random_iv
(ae);
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iv =
av_aes_ctr_get_iv
(ae);
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av_aes_ctr_set_full_iv
(ad, iv);
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av_aes_ctr_crypt
(ae,
tmp
,
plain
,
sizeof
(
tmp
));
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av_aes_ctr_crypt
(ad,
tmp
,
tmp
,
sizeof
(
tmp
));
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if
(memcmp(
tmp
,
plain
,
sizeof
(
tmp
)) != 0){
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av_log
(
NULL
,
AV_LOG_ERROR
,
"test failed\n"
);
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goto
ERROR
;
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}
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av_log
(
NULL
,
AV_LOG_INFO
,
"test passed\n"
);
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ret
= 0;
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63
ERROR
:
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av_aes_ctr_free
(ae);
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av_aes_ctr_free
(ad);
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return
ret
;
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}
mem_internal.h
tmp
static uint8_t tmp[11]
Definition:
aes_ctr.c:28
av_aes_ctr_set_random_iv
void av_aes_ctr_set_random_iv(struct AVAESCTR *a)
Generate a random iv.
Definition:
aes_ctr.c:63
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition:
log.h:209
av_aes_ctr_get_iv
const uint8_t * av_aes_ctr_get_iv(struct AVAESCTR *a)
Get the current iv.
Definition:
aes_ctr.c:58
NULL
#define NULL
Definition:
coverity.c:32
ERROR
static void ERROR(const char *str)
Definition:
audio_fifo.c:58
av_aes_ctr_alloc
struct AVAESCTR * av_aes_ctr_alloc(void)
Allocate an AVAESCTR context.
Definition:
aes_ctr.c:40
main
int main(void)
Definition:
aes_ctr.c:30
av_aes_ctr_init
int av_aes_ctr_init(struct AVAESCTR *a, const uint8_t *key)
Initialize an AVAESCTR context.
Definition:
aes_ctr.c:73
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition:
mem_internal.h:102
av_aes_ctr_set_full_iv
void av_aes_ctr_set_full_iv(struct AVAESCTR *a, const uint8_t *iv)
Forcefully change the "full" 16-byte iv, including the counter.
Definition:
aes_ctr.c:52
aes_ctr.h
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition:
log.h:220
av_aes_ctr_free
void av_aes_ctr_free(struct AVAESCTR *a)
Release an AVAESCTR context.
Definition:
aes_ctr.c:83
log.h
plain
static const uint8_t plain[]
Definition:
aes_ctr.c:25
ret
ret
Definition:
filter_design.txt:187
av_aes_ctr_crypt
void av_aes_ctr_crypt(struct AVAESCTR *a, uint8_t *dst, const uint8_t *src, int count)
Process a buffer using a previously initialized context.
Definition:
aes_ctr.c:107
av_log
#define av_log(a,...)
Definition:
tableprint_vlc.h:27
AVAESCTR
Definition:
aes_ctr.c:33
Generated on Tue Dec 3 2024 19:22:47 for FFmpeg by
1.8.17