ocrypto_hkdf_sha256()

void ocrypto_hkdf_sha256	(	uint8_t *	r,
		size_t	r_len,
		const uint8_t *	key,
		size_t	key_len,
		const uint8_t *	salt,
		size_t	salt_len,
		const uint8_t *	info,
		size_t	info_len )

#include <crypto/nrf_oberon/include/ocrypto_hkdf_sha256.h>

HKDF-SHA256 algorithm.

A new pseudo-random key of length r_len is derived from an input key key, a salt salt and additional information info. The new key is put into r.

Parameters

[out]	r	Output key.
	r_len	Length of r.
	key	Input key.
	key_len	Length of key.
	salt	Salt.
	salt_len	Length of salt salt.
	info	Additional information.
	info_len	Length of info.