65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
/**
|
|
* @file crypto_api.h
|
|
*
|
|
* @brief public APIs for crypto functions
|
|
*/
|
|
|
|
#ifndef CRYPTO_API_H
|
|
#define CRYPTO_API_H
|
|
|
|
#include <types.h>
|
|
|
|
/**
|
|
* @brief HMAC-based Extract-and-Expand Key Derivation Function.
|
|
*
|
|
* @param out_key Pointer to key buffer which is used to save
|
|
* hkdf_sha256 result
|
|
* @param out_len The length of out_key
|
|
* @param secret Pointer to input keying material
|
|
* @param secret_len The length of secret
|
|
* @param salt Pointer to salt buffer, it is optional
|
|
* if not provided (salt == NULL), it is set internally
|
|
* to a string of hashlen(32) zeros
|
|
* @param salt_len The length of the salt value
|
|
* Ignored if salt is NULL
|
|
* @param info Pointer to application specific information, it is
|
|
* optional. Ignored if info == NULL or a zero-length string
|
|
* @param info_len: The length of the info, ignored if info is NULL
|
|
*
|
|
* @return int32_t 1 - Success 0 - Failure
|
|
*/
|
|
int32_t hkdf_sha256(uint8_t *out_key, size_t out_len,
|
|
const uint8_t *secret, size_t secret_len,
|
|
const uint8_t *salt, size_t salt_len,
|
|
const uint8_t *info, size_t info_len);
|
|
|
|
/**
|
|
* @brief This function calculates the full generic HMAC
|
|
* on the input buffer with the provided key.
|
|
*
|
|
* The function allocates the context, performs the
|
|
* calculation, and frees the context.
|
|
*
|
|
* The HMAC result is calculated as
|
|
* output = generic HMAC(hmac key, input buffer).
|
|
*
|
|
* @param out_key The generic HMAC result
|
|
* @param secret The HMAC secret key
|
|
* @param secret_len The length of the HMAC secret key in Bytes
|
|
* @param salt The buffer holding the input data
|
|
* @param salt_len The length of the input data
|
|
*
|
|
* @return int32_t 1 - Success 0 - Failure
|
|
*/
|
|
int32_t hmac_sha256(uint8_t *out_key,
|
|
const uint8_t *secret, size_t secret_len,
|
|
const uint8_t *salt, size_t salt_len);
|
|
|
|
#endif /* CRYPTO_API_H */
|