SHA

Functions
struct AVSHA *	av_sha_alloc (void)
	Allocate an AVSHA context.
int	av_sha_init (struct AVSHA *context, int bits)
	Initialize SHA-1 or SHA-2 hashing.
void	av_sha_update (struct AVSHA *context, const uint8_t *data, unsigned int len)
	Update hash value.
void	av_sha_final (struct AVSHA *context, uint8_t *digest)
	Finish hashing and output digest value.

Variables
const int	av_sha_size

Detailed Description

Function Documentation

struct AVSHA* av_sha_alloc ( void  )

read

Allocate an AVSHA context.

Definition at line 43 of file sha.c.

Referenced by av_hmac_alloc(), ff_rtmp_calc_digest(), and mkv_write_attachments().

int av_sha_init	(	struct AVSHA *	context,
		int	bits
	)

Initialize SHA-1 or SHA-2 hashing.

Parameters

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)

Returns

zero if initialization succeeded, -1 otherwise

Definition at line 252 of file sha.c.

Referenced by ff_rtmp_calc_digest(), get_generic_seed(), mkv_write_attachments(), and sha1_init().

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

Update hash value.

Parameters

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

Definition at line 293 of file sha.c.

Referenced by av_hmac_alloc(), av_sha_final(), ff_rtmp_calc_digest(), get_generic_seed(), and mkv_write_attachments().

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

Finish hashing and output digest value.

Parameters

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

Definition at line 320 of file sha.c.

Referenced by av_hmac_alloc(), ff_rtmp_calc_digest(), get_generic_seed(), and mkv_write_attachments().

Variable Documentation

const int av_sha_size

Definition at line 41 of file sha.c.

Referenced by get_generic_seed().