Software implementation of SHA-256. More...

#include "lib/sha-256.h"
#include "net/ipv6/uip.h"
#include "sys/cc.h"
#include <string.h>

Functions
void	sha_256_hmac_init (const uint8_t *key, size_t key_len)
	Initiates a stepwise HMAC-SHA-256 computation.

void	sha_256_hmac_update (const uint8_t *data, size_t data_len)
	Proceeds with the computation of an HMAC-SHA-256.

void	sha_256_hkdf_expand (const uint8_t prk, size_t prk_len, const uint8_t info, size_t info_len, uint8_t *okm, uint_fast16_t okm_len)
	Expands a key as per RFC 5869.

void	sha_256_hkdf (const uint8_t salt, size_t salt_len, const uint8_t ikm, size_t ikm_len, const uint8_t info, size_t info_len, uint8_t okm, uint_fast16_t okm_len)
	Performs both extraction and expansion as per RFC 5869.

Detailed Description

Software implementation of SHA-256.

Definition in file sha-256.c.

Functions