lc_hmac.h File Reference

#include "lc_hash.h"
#include "lc_sha3.h"
#include "lc_memset_secure.h"

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Macros
#define	LC_HMAC_CTX_ON_STACK(name, hashname)
	Allocate stack memory for the HMAC context.

Functions
int	lc_hmac_init (struct lc_hmac_ctx *hmac_ctx, const uint8_t *key, size_t keylen)
	Initialize HMAC context.
void	lc_hmac_reinit (struct lc_hmac_ctx *hmac_ctx)
	Re-initialize HMAC context after a hmac_final operation.
void	lc_hmac_update (struct lc_hmac_ctx *hmac_ctx, const uint8_t *in, size_t inlen)
	Update HMAC.
void	lc_hmac_final (struct lc_hmac_ctx *hmac_ctx, uint8_t *mac)
	Calculate HMAC mac.
int	lc_hmac_alloc (const struct lc_hash *hash, struct lc_hmac_ctx **hmac_ctx)
	Allocate HMAC context on heap.
void	lc_hmac_zero_free (struct lc_hmac_ctx *hmac_ctx)
	Zeroize and free HMAC context.
void	lc_hmac_zero (struct lc_hmac_ctx *hmac_ctx)
	Zeroize HMAC context allocated with either HMAC_CTX_ON_STACK or hmac_alloc.
size_t	lc_hmac_macsize (struct lc_hmac_ctx *hmac_ctx)
	Return the MAC size.
int	lc_hmac (const struct lc_hash *hash, const uint8_t *key, size_t keylen, const uint8_t *in, size_t inlen, uint8_t *mac)
	Calculate HMAC - one-shot.