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/* Copyright (C) 2018 Wildfire Games.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef PKCS5_PBKD2_INCLUDED
#define PKCS5_PBKD2_INCLUDED
#include <sodium.h>
/**
* Simple PBKDF2 implementation for hard to crack passwords
* @param output The output buffer for the digested hash
* @param key The initial key we want to hash
* @param key_len Length of the key in bytes
* @param salt The salt we use to iteratively hash the key.
* @param salt_len Length of the salt in bytes
* @param iterations Number of salting iterations
* @return 0 on success, -1 on error
*/
int pbkdf2(unsigned char (&output)[crypto_hash_sha256_BYTES],
const unsigned char* key, size_t key_len,
const unsigned char* salt, size_t salt_len,
unsigned iterations);
#endif // PKCS5_PBKD2_INCLUDED
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