hmac.c File Reference

#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "attributes.h"
#include "error.h"
#include "hmac.h"
#include "md5.h"
#include "sha.h"
#include "sha512.h"
#include "mem.h"

Go to the source code of this file.

Data Structures
struct	AVHMAC

Macros
#define	MAX_HASHLEN   64
#define	MAX_BLOCKLEN   128
#define	DEFINE_ALGO_BITS_INIT(prefix, bits)
#define	DEFINE_ALGO_INIT(prefix)
#define	DEFINE_ALGO(prefix)

Typedefs
typedef void(*	hmac_final) (void *ctx, uint8_t *dst)
typedef void(*	hmac_update) (void *ctx, const uint8_t *src, size_t len)
typedef void(*	hmac_init) (void *ctx)

Functions
AVHMAC *	av_hmac_alloc (enum AVHMACType type)
	Allocate an AVHMAC context.
void	av_hmac_free (AVHMAC *c)
	Free an AVHMAC context.
void	av_hmac_init (AVHMAC *c, const uint8_t *key, unsigned int keylen)
	Initialize an AVHMAC context with an authentication key.
void	av_hmac_update (AVHMAC *c, const uint8_t *data, unsigned int len)
	Hash data with the HMAC.
int	av_hmac_final (AVHMAC *c, uint8_t *out, unsigned int outlen)
	Finish hashing and output the HMAC digest.
int	av_hmac_calc (AVHMAC *c, const uint8_t *data, unsigned int len, const uint8_t *key, unsigned int keylen, uint8_t *out, unsigned int outlen)
	Hash an array of data with a key.

Macro Definition Documentation

MAX_HASHLEN

#define MAX_HASHLEN   64

Definition at line 33 of file hmac.c.

Referenced by test().

MAX_BLOCKLEN

#define MAX_BLOCKLEN   128

Definition at line 34 of file hmac.c.

Referenced by av_hmac_final(), and av_hmac_init().

DEFINE_ALGO_BITS_INIT

#define DEFINE_ALGO_BITS_INIT	(		prefix,
			bits )

Value:

static av_cold void prefix##bits##_init(void *ctx) \
{                                                  \
    av_##prefix##_init(ctx, bits);                 \
}

Definition at line 50 of file hmac.c.

DEFINE_ALGO_INIT

#define DEFINE_ALGO_INIT

(

prefix

)

Value:

static av_cold void prefix##_init(void *ctx) \
{                                            \
    av_##prefix##_init(ctx);                 \
}

Definition at line 56 of file hmac.c.

DEFINE_ALGO

#define DEFINE_ALGO

(

prefix

)

Value:

static void prefix##_update(void *ctx, const uint8_t *src, size_t len) \
{                                                                      \
    av_##prefix##_update(ctx, src, len);                               \
}                                                                      \
static void prefix##_final(void *ctx, uint8_t *dst)                    \
{                                                                      \
    av_##prefix##_final(ctx, dst);                                     \
}

Definition at line 62 of file hmac.c.

Typedef Documentation

hmac_final

typedef void(* hmac_final) (void *ctx, uint8_t *dst)

Definition at line 36 of file hmac.c.

hmac_update

typedef void(* hmac_update) (void *ctx, const uint8_t *src, size_t len)

Definition at line 37 of file hmac.c.

hmac_init

typedef void(* hmac_init) (void *ctx)

Definition at line 38 of file hmac.c.