FFmpeg: SHA

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Functions | Variables

SHA

Crypto and Hashing

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 45 of file sha.c.

Referenced by av_hash_alloc(), 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 273 of file sha.c.

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

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 314 of file sha.c.

Referenced by av_hash_update(), 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 341 of file sha.c.

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

Variable Documentation

const int av_sha_size

Definition at line 43 of file sha.c.

Referenced by get_generic_seed().

Generated on Sat Jan 25 2014 19:52:24 for FFmpeg by doxygen 1.8.2