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// Copyright (c) 2017-2018, 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.
//
// 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
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#ifndef MONERO_DEVICE_COLD_H
#define MONERO_DEVICE_COLD_H
#include "wallet/wallet2.h"
#include <boost/optional/optional.hpp>
#include <boost/function.hpp>
namespace hw {
typedef struct wallet_shim {
boost::function<crypto::public_key (const tools::wallet2::transfer_details &td)> get_tx_pub_key_from_received_outs;
} wallet_shim;
class tx_aux_data {
public:
std::vector<std::string> tx_device_aux; // device generated aux data
std::vector<cryptonote::address_parse_info> tx_recipients; // as entered by user
boost::optional<int> bp_version; // BP version to use
boost::optional<unsigned> client_version; // Signing client version to use (testing)
};
class device_cold {
public:
using exported_key_image = std::vector<std::pair<crypto::key_image, crypto::signature>>;
class op_progress : public hw::device_progress {
public:
op_progress():m_progress(0), m_indeterminate(false) {};
explicit op_progress(double progress, bool indeterminate=false): m_progress(progress), m_indeterminate(indeterminate){}
double progress() const override { return m_progress; }
bool indeterminate() const override { return m_indeterminate; }
protected:
double m_progress;
bool m_indeterminate;
};
class tx_progress : public op_progress {
public:
tx_progress():
m_cur_tx(0), m_max_tx(1),
m_cur_step(0), m_max_step(1),
m_cur_substep(0), m_max_substep(1){};
tx_progress(size_t cur_tx, size_t max_tx, size_t cur_step, size_t max_step, size_t cur_substep, size_t max_substep):
m_cur_tx(cur_tx), m_max_tx(max_tx),
m_cur_step(cur_tx), m_max_step(max_tx),
m_cur_substep(cur_tx), m_max_substep(max_tx){}
double progress() const override {
return std::max(1.0, (double)m_cur_tx / m_max_tx
+ (double)m_cur_step / (m_max_tx * m_max_step)
+ (double)m_cur_substep / (m_max_tx * m_max_step * m_max_substep));
}
bool indeterminate() const override { return false; }
protected:
size_t m_cur_tx;
size_t m_max_tx;
size_t m_cur_step;
size_t m_max_step;
size_t m_cur_substep;
size_t m_max_substep;
};
typedef struct {
std::string salt1;
std::string salt2;
std::string tx_enc_keys;
std::string tx_prefix_hash;
} tx_key_data_t;
/**
* Key image sync with the cold protocol.
*/
virtual void ki_sync(wallet_shim * wallet,
const std::vector<::tools::wallet2::transfer_details> & transfers,
exported_key_image & ski) =0;
/**
* Signs unsigned transaction with the cold protocol.
*/
virtual void tx_sign(wallet_shim * wallet,
const ::tools::wallet2::unsigned_tx_set & unsigned_tx,
::tools::wallet2::signed_tx_set & signed_tx,
tx_aux_data & aux_data) =0;
/**
* Get tx key support check.
*/
virtual bool is_get_tx_key_supported() const { return false; }
/**
* Loads TX aux data required for tx key.
*/
virtual void load_tx_key_data(tx_key_data_t & res, const std::string & tx_aux_data) =0;
/**
* Decrypts TX keys.
*/
virtual void get_tx_key(
std::vector<::crypto::secret_key> & tx_keys,
const tx_key_data_t & tx_aux_data,
const ::crypto::secret_key & view_key_priv) =0;
/**
* Live refresh support check
*/
virtual bool is_live_refresh_supported() const { return false; };
/**
* Starts live refresh process with the device
*/
virtual void live_refresh_start() =0;
/**
* One live refresh step
*/
virtual void live_refresh(
const ::crypto::secret_key & view_key_priv,
const crypto::public_key& out_key,
const crypto::key_derivation& recv_derivation,
size_t real_output_index,
const cryptonote::subaddress_index& received_index,
cryptonote::keypair& in_ephemeral,
crypto::key_image& ki
) =0;
/**
* Live refresh process termination
*/
virtual void live_refresh_finish() =0;
};
}
#endif //MONERO_DEVICE_COLD_H
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