HKDF (HMAC-based Key Derivation Function) More...
#include "core/crypto.h"Go to the source code of this file.
Functions | |
| error_t | hkdf (const HashAlgo *hash, const uint8_t *ikm, size_t ikmLen, const uint8_t *salt, size_t saltLen, const uint8_t *info, size_t infoLen, uint8_t *okm, size_t okmLen) |
| HKDF key derivation function. More... | |
| error_t | hkdfExtract (const HashAlgo *hash, const uint8_t *ikm, size_t ikmLen, const uint8_t *salt, size_t saltLen, uint8_t *prk) |
| HKDF extract step. More... | |
| error_t | hkdfExpand (const HashAlgo *hash, const uint8_t *prk, size_t prkLen, const uint8_t *info, size_t infoLen, uint8_t *okm, size_t okmLen) |
| HKDF expand step. More... | |
Detailed Description
HKDF (HMAC-based Key Derivation Function)
License
SPDX-License-Identifier: GPL-2.0-or-later
Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.
This file is part of CycloneCRYPTO Open.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- Version
- 2.4.4
Definition in file hkdf.h.
Function Documentation
◆ hkdf()
| error_t hkdf | ( | const HashAlgo * | hash, |
| const uint8_t * | ikm, | ||
| size_t | ikmLen, | ||
| const uint8_t * | salt, | ||
| size_t | saltLen, | ||
| const uint8_t * | info, | ||
| size_t | infoLen, | ||
| uint8_t * | okm, | ||
| size_t | okmLen | ||
| ) |
HKDF key derivation function.
- Parameters
-
[in] hash Underlying hash function [in] ikm input keying material [in] ikmLen Length in the input keying material [in] salt Optional salt value (a non-secret random value) [in] saltLen Length of the salt [in] info Optional application specific information [in] infoLen Length of the application specific information [out] okm output keying material [in] okmLen Length of the output keying material
- Returns
- Error code
◆ hkdfExpand()
| error_t hkdfExpand | ( | const HashAlgo * | hash, |
| const uint8_t * | prk, | ||
| size_t | prkLen, | ||
| const uint8_t * | info, | ||
| size_t | infoLen, | ||
| uint8_t * | okm, | ||
| size_t | okmLen | ||
| ) |
HKDF expand step.
- Parameters
-
[in] hash Underlying hash function [in] prk Pseudorandom key [in] prkLen Length of the pseudorandom key [in] info Optional application specific information [in] infoLen Length of the application specific information [out] okm output keying material [in] okmLen Length of the output keying material
- Returns
- Error code
◆ hkdfExtract()
| error_t hkdfExtract | ( | const HashAlgo * | hash, |
| const uint8_t * | ikm, | ||
| size_t | ikmLen, | ||
| const uint8_t * | salt, | ||
| size_t | saltLen, | ||
| uint8_t * | prk | ||
| ) |
HKDF extract step.
- Parameters
-
[in] hash Underlying hash function [in] ikm input keying material [in] ikmLen Length in the input keying material [in] salt Optional salt value (a non-secret random value) [in] saltLen Length of the salt [out] prk Pseudorandom key
- Returns
- Error code