crypto.h

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/* 2025 Quantum Resistant Cryptographic Solutions Corporation
 * All Rights Reserved.
 *
 * NOTICE: This software and all accompanying materials are the exclusive 
 * property of Quantum Resistant Cryptographic Solutions Corporation (QRCS).
 * The intellectual and technical concepts contained within this implementation 
 * are proprietary to QRCS and its authorized licensors and are protected under 
 * applicable U.S. and international copyright, patent, and trade secret laws.
 *
 * CRYPTOGRAPHIC STANDAARS:
 * - This software includes implementations of cryptographic algorithms such as 
 *   SHA3, AES, and others. These algorithms are public domain or standardized 
 *   by organizations such as NIST and are NOT the property of QRCS.
 * - However, all source code, optimizations, and implementations in this library 
 *   are original works of QRCS and are protected under this license.
 *
 * RESTRICTIONS:
 * - Redistribution, modification, or unauthorized distribution of this software, 
 *   in whole or in part, is strictly prohibited.
 * - This software is provided for non-commercial, educational, and research 
 *   purposes only. Commercial use in any form is expressly forbidden.
 * - Licensing and authorized distribution are solely at the discretion of QRCS.
 * - Any use of this software implies acceptance of these restrictions.
 *
 * DISCLAIMER:
 * This software is provided "as is," without warranty of any kind, express or 
 * implied, including but not limited to warranties of merchantability or fitness 
 * for a particular purpose. QRCS disclaims all liability for any direct, indirect, 
 * incidental, or consequential damages resulting from the use or misuse of this software.
 *
 * FULL LICENSE:
 * This software is subject to the **Quantum Resistant Cryptographic Solutions 
 * Proprietary License (QRCS-PL)**. The complete license terms are included 
 * in the LICENSE.txt file distributed with this software.
 *
 * Written by: John G. Underhill
 * Contact: contact@qrcscorp.ca
 */
 
#ifndef UDIF_CRYPTO_H
#define UDIF_CRYPTO_H
 
#include "udifcommon.h"
#include "udif.h"


#define UDIF_CRYPTO_PHASH_CPU_COST 4U

#define UDIF_CRYPTO_PHASH_MEMORY_COST 1U

UDIF_EXPORT_API bool udif_crypto_decrypt_stream(uint8_t* output, const uint8_t* seed, const uint8_t* input, size_t length);

UDIF_EXPORT_API void udif_crypto_encrypt_stream(uint8_t* output, const uint8_t* seed, const uint8_t* input, size_t length);

UDIF_EXPORT_API void udif_crypto_generate_application_keychain(uint8_t* seed, size_t seedlen, const char* password, size_t passlen, const char* username, size_t userlen);

UDIF_EXPORT_API void udif_crypto_generate_application_salt(uint8_t* output, size_t outlen);

UDIF_EXPORT_API void udif_crypto_generate_hash_code(uint8_t* output, const uint8_t* message, size_t msglen);

UDIF_EXPORT_API void udif_crypto_generate_mac_code(uint8_t* output, size_t outlen, const uint8_t* message, size_t msglen, const uint8_t* key, size_t keylen);

UDIF_EXPORT_API void udif_crypto_hash_password(uint8_t* output, size_t outlen, const uint8_t* username, size_t userlen, const uint8_t* password, size_t passlen);

UDIF_EXPORT_API bool udif_crypto_password_minimum_check(const char* password, size_t passlen);

UDIF_EXPORT_API bool udif_crypto_password_verify(const uint8_t* username, size_t userlen, const uint8_t* password, size_t passlen, const uint8_t* hash, size_t hashlen);

UDIF_EXPORT_API uint8_t* udif_crypto_secure_memory_allocate(size_t length);

UDIF_EXPORT_API void udif_crypto_secure_memory_deallocate(uint8_t* block, size_t length);
 
#endif