// Copyright (c) 2017-2019, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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#pragma once

#include <cstddef>
#include <string>

#include "ringct/rctOps.h"
#include "crypto/crypto.h"
#include "cryptonote_basic/account.h"

#include "device.hpp"

namespace hw {

    /* Note about debug:
     * To debug Device you can def the following :
     * #define DEBUG_HWDEVICE
     *   Activate debug mechanism:
     *     - Add more trace
     *     - All computation done by device are checked by default device.
     *       Required IODUMMYCRYPT_HWDEVICE or IONOCRYPT_HWDEVICE for fully working
     * #define IODUMMYCRYPT_HWDEVICE 1
     *     - It assumes sensitive data encryption is is off on device side. a XOR with 0x55. This allow Ledger Class to make check on clear value
     * #define IONOCRYPT_HWDEVICE 1
     *     - It assumes sensitive data encryption is off on device side.
     */

    void buffer_to_str(char *to_buff,  size_t to_len, const char *buff, size_t len) ;
    void log_hexbuffer(const std::string &msg,  const char* buff, size_t len);
    void log_message(const std::string &msg, const std::string &info );

    #ifdef WITH_DEVICE_LEDGER    
    namespace ledger {

        #ifdef DEBUG_HWDEVICE
        #define TRACK printf("file %s:%d\n",__FILE__, __LINE__)
        //#define TRACK MCDEBUG("ledger"," At file " << __FILE__ << ":" << __LINE__)
        //#define TRACK while(0);

        void decrypt(char* buf, size_t len) ;
        crypto::key_derivation decrypt(const crypto::key_derivation &derivation) ;
        cryptonote::account_keys decrypt(const cryptonote::account_keys& keys) ;
        crypto::secret_key decrypt(const crypto::secret_key &sec) ;
        rct::key  decrypt(const rct::key &sec);
        crypto::ec_scalar decrypt(const crypto::ec_scalar &res);
        rct::keyV decrypt(const rct::keyV &keys);

        void check32(const std::string &msg, const std::string &info, const char *h, const char *d, bool crypted=false);
        void check8(const std::string &msg, const std::string &info, const char *h, const char *d,  bool crypted=false);

        void set_check_verbose(bool verbose);
        #endif
    }
    #endif
}
