SHA

Граф связей класса SHA:

Файлы
файл	sha.h

Функции
struct AVSHA *	av_sha_alloc (void)
int	av_sha_init (struct AVSHA *context, int bits)
void	av_sha_update (struct AVSHA *ctx, const uint8_t *data, unsigned int len)
void	av_sha_final (struct AVSHA *context, uint8_t *digest)

Переменные
const int	av_sha_size

Подробное описание

SHA-1 and SHA-256 (Secure Hash Algorithm) hash function implementations.

This module supports the following SHA hash functions:

• SHA-1: 160 bits
• SHA-224: 224 bits, as a variant of SHA-2
• SHA-256: 256 bits, as a variant of SHA-2

См. также

For SHA-384, SHA-512, and variants thereof, see SHA-512.

Функции

av_sha_alloc()

struct AVSHA* av_sha_alloc

(

void

)

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

Allocate an AVSHA context.

av_sha_init()

int av_sha_init	(	struct AVSHA *	context,
		int	bits
	)

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

Initialize SHA-1 or SHA-2 hashing.

Аргументы

context	pointer to the function context (of size av_sha_size)
bits	number of bits in digest (SHA-1 - 160 bits, SHA-2 224 or 256 bits)

Возвращает

zero if initialization succeeded, -1 otherwise

av_sha_update()

void av_sha_update	(	struct AVSHA *	ctx,
		const uint8_t *	data,
		unsigned int	len
	)

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

Update hash value.

Аргументы

ctx	hash function context
data	input data to update hash with
len	input data length

av_sha_final()

void av_sha_final	(	struct AVSHA *	context,
		uint8_t *	digest
	)

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

Finish hashing and output digest value.

Аргументы

context	hash function context
digest	buffer where output digest value is stored

Переменные

av_sha_size

const int av_sha_size

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