Platform-independent SHA-256 API. More...

#include "contiki.h"
#include <stddef.h>
#include <stdint.h>

Data Structures
struct	sha_256_driver
	Structure of SHA-256 drivers. More...

Functions
void	sha_256_hash (const uint8_t *data, size_t len, uint8_t digest[static 32])
	Generic implementation of sha_256_driver::hash.

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_hmac_finish (uint8_t hmac[static 32])
	Finishes the computation of an HMAC-SHA-256.

void	sha_256_hmac (const uint8_t key, size_t key_len, const uint8_t data, size_t data_len, uint8_t hmac[static 32])
	Computes HMAC-SHA-256 as per RFC 2104.

void	sha_256_hkdf_extract (const uint8_t salt, size_t salt_len, const uint8_t ikm, size_t ikm_len, uint8_t prk[static 32])
	Extracts a key as per RFC 5869.

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

Platform-independent SHA-256 API.

Author: Konrad Krentz konra.nosp@m.d.kr.nosp@m.entz@.nosp@m.gmai.nosp@m.l.com

Definition in file sha-256.h.

Data Structures