lime_defines.hpp

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/*
    lime_defines.hpp
    @author Johan Pascal
    @copyright  Copyright (C) 2017  Belledonne Communications SARL

    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 3 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, see <http://www.gnu.org/licenses/>.
*/

#ifndef lime_defines_hpp
#define lime_defines_hpp

#include <string>
#include <functional>
#include <vector>
#include <memory>

namespace lime {
using limeRandomSeedCallback = std::function<bool(const bool get, std::shared_ptr<std::vector<uint8_t>> &randomSeed)>;

namespace settings {

/******************************************************************************/
/*                                                                            */
/* Double Ratchet related definitions                                         */
/*                                                                            */
/******************************************************************************/

    constexpr size_t DRChainKeySize=32;
    const std::string hkdf_DRChainKey_info{"DR Root Chain Key Derivation"};

    constexpr size_t DRMessageKeySize=32;
    constexpr size_t DRMessageIVSize=16;

    constexpr size_t DRrandomSeedSize=32;
    const std::string hkdf_randomSeed_info{"DR Message Key Derivation"};

    constexpr size_t DRPkIndexSize=12;

    constexpr size_t DRMessageAuthTagSize=16;

/******************************************************************************/
/*                                                                            */
/* Local Storage related definitions                                          */
/*                                                                            */
/******************************************************************************/
    constexpr int DBuserVersion=0x000300;
    constexpr uint16_t DBInactiveUserBit = 0x0100;
    constexpr uint16_t DBCurveIdByte = 0x00FF;
    constexpr uint8_t DBInvalidIk = 0x00;

/******************************************************************************/
/*                                                                            */
/* X3DH related definitions                                                   */
/*                                                                            */
/******************************************************************************/
    const std::string X3DH_SK_info{"Lime"};
    const std::string X3DH_AD_info{"X3DH Associated Data"};
} // namespace settings

} // namespace lime

#endif /* lime_defines_hpp */