CAST5

Граф связей класса CAST5:

Функции
struct AVCAST5 *	av_cast5_alloc (void)
int	av_cast5_init (struct AVCAST5 *ctx, const uint8_t *key, int key_bits)
void	av_cast5_crypt (struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, int decrypt)
void	av_cast5_crypt2 (struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)

Переменные
const int	av_cast5_size

Подробное описание

Функции

av_cast5_alloc()

struct AVCAST5* av_cast5_alloc

(

void

)

#include <C:/git/world-of-might-and-magic/lib/win32/x86/ffmpeg-4.2.2/include/libavutil/cast5.h>

Allocate an AVCAST5 context To free the struct: av_free(ptr)

av_cast5_init()

int av_cast5_init	(	struct AVCAST5 *	ctx,
		const uint8_t *	key,
		int	key_bits
	)

#include <C:/git/world-of-might-and-magic/lib/win32/x86/ffmpeg-4.2.2/include/libavutil/cast5.h>

Initialize an AVCAST5 context.

Аргументы

ctx	an AVCAST5 context
key	a key of 5,6,...16 bytes used for encryption/decryption
key_bits	number of keybits: possible are 40,48,...,128

Возвращает

0 on success, less than 0 on failure

av_cast5_crypt()

void av_cast5_crypt	(	struct AVCAST5 *	ctx,
		uint8_t *	dst,
		const uint8_t *	src,
		int	count,
		int	decrypt
	)

#include <C:/git/world-of-might-and-magic/lib/win32/x86/ffmpeg-4.2.2/include/libavutil/cast5.h>

Encrypt or decrypt a buffer using a previously initialized context, ECB mode only

Аргументы

ctx	an AVCAST5 context
dst	destination array, can be equal to src
src	source array, can be equal to dst
count	number of 8 byte blocks
decrypt	0 for encryption, 1 for decryption

av_cast5_crypt2()

void av_cast5_crypt2	(	struct AVCAST5 *	ctx,
		uint8_t *	dst,
		const uint8_t *	src,
		int	count,
		uint8_t *	iv,
		int	decrypt
	)

#include <C:/git/world-of-might-and-magic/lib/win32/x86/ffmpeg-4.2.2/include/libavutil/cast5.h>

Encrypt or decrypt a buffer using a previously initialized context

Аргументы

ctx	an AVCAST5 context
dst	destination array, can be equal to src
src	source array, can be equal to dst
count	number of 8 byte blocks
iv	initialization vector for CBC mode, NULL for ECB mode
decrypt	0 for encryption, 1 for decryption

Переменные

av_cast5_size

const int av_cast5_size

#include <C:/git/world-of-might-and-magic/lib/win32/x86/ffmpeg-4.2.2/include/libavutil/cast5.h>