donna128.h

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/* 2020-2026 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 herein are proprietary to QRCS and are
 * protected under applicable Canadian, U.S., and international copyright,
 * patent, and trade secret laws.
 *
 * CRYPTOGRAPHIC ALGORITHMS AND IMPLEMENTATIONS:
 * - This software includes implementations of cryptographic primitives and
 *   algorithms that are standardized or in the public domain, such as AES
 *   and SHA-3, which are not proprietary to QRCS.
 * - This software also includes cryptographic primitives, constructions, and
 *   algorithms designed by QRCS, including but not limited to RCS, SCB, CSX, QMAC, and
 *   related components, which are proprietary to QRCS.
 * - All source code, implementations, protocol compositions, optimizations,
 *   parameter selections, and engineering work contained in this software are
 *   original works of QRCS and are protected under this license.
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 * LICENSE AND USE RESTRICTIONS:
 * - This software is licensed under the Quantum Resistant Cryptographic Solutions
 *   Public Research and Evaluation License (QRCS-PREL), 2025-2026.
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 * EXPERIMENTAL CRYPTOGRAPHY NOTICE:
 * Portions of this software may include experimental, novel, or evolving
 * cryptographic designs. Use of this software is entirely at the user's risk.
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 * ARISING FROM THE USE OR MISUSE OF THIS SOFTWARE.
 *
 * FULL LICENSE:
 * This software is subject to the Quantum Resistant Cryptographic Solutions
 * Public Research and Evaluation License (QRCS-PREL), 2025-2026. The complete license terms
 * are provided in the accompanying LICENSE file or at https://www.qrcscorp.ca.
 *
 * Written by: John G. Underhill
 * Contact: contact@qrcscorp.ca
 */
 
#ifndef QSC_DONNA128_H
#define QSC_DONNA128_H
 
#include "qsccommon.h"
 
QSC_CPLUSPLUS_ENABLED_START


QSC_EXPORT_API typedef struct
{
    uint64_t high; 
    uint64_t low;  
} uint128;

QSC_EXPORT_API uint128 qsc_donna128_add(const uint128* x, const uint128* y);

QSC_EXPORT_API uint64_t qsc_donna128_andh(const uint128* x, uint64_t mask);

QSC_EXPORT_API uint64_t qsc_donna128_andl(const uint128* x, uint64_t mask);

QSC_EXPORT_API uint128 qsc_donna128_multiply(const uint128* x, uint64_t y);

QSC_EXPORT_API uint128 qsc_donna128_or(const uint128* x, const uint128* y);

QSC_EXPORT_API uint128 qsc_donna128_shift_left(const uint128* x, size_t shift);

QSC_EXPORT_API uint128 qsc_donna128_shift_right(const uint128* x, size_t shift);

QSC_EXPORT_API uint128 qsc_donna128_subtract(const uint128* x, const uint128* y);
 
QSC_CPLUSPLUS_ENABLED_END
 
#endif