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// 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.
//
// 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.
//
#pragma once
#include <cstddef>
#include <string>
#include "device.hpp"
#include "device_io_hid.hpp"
#include <boost/thread/mutex.hpp>
#include <boost/thread/recursive_mutex.hpp>
namespace hw {
namespace ledger {
void register_all(std::map<std::string, std::unique_ptr<device>> ®istry);
#ifdef WITH_DEVICE_LEDGER
namespace {
bool apdu_verbose =true;
}
void set_apdu_verbose(bool verbose);
class ABPkeys {
public:
rct::key Aout;
rct::key Bout;
bool is_subaddress;
bool is_change_address;
bool additional_key ;
size_t index;
rct::key Pout;
rct::key AKout;
ABPkeys(const rct::key& A, const rct::key& B, const bool is_subaddr, bool is_subaddress, bool is_change_address, size_t index, const rct::key& P,const rct::key& AK);
ABPkeys(const ABPkeys& keys) ;
ABPkeys() {index=0;is_subaddress=false;is_subaddress=false;is_change_address=false;}
};
class Keymap {
public:
std::vector<ABPkeys> ABP;
bool find(const rct::key& P, ABPkeys& keys) const;
void add(const ABPkeys& keys);
void clear();
void log();
};
#define BUFFER_SEND_SIZE 262
#define BUFFER_RECV_SIZE 262
class device_ledger : public hw::device {
private:
// Locker for concurrent access
mutable boost::recursive_mutex device_locker;
mutable boost::mutex command_locker;
//IO
hw::io::device_io_hid hw_device;
unsigned int length_send;
unsigned char buffer_send[BUFFER_SEND_SIZE];
unsigned int length_recv;
unsigned char buffer_recv[BUFFER_RECV_SIZE];
unsigned int sw;
unsigned int id;
void logCMD(void);
void logRESP(void);
unsigned int exchange(unsigned int ok=0x9000, unsigned int mask=0xFFFF);
unsigned int exchange_wait_on_input(unsigned int ok=0x9000, unsigned int mask=0xFFFF);
void reset_buffer(void);
int set_command_header(unsigned char ins, unsigned char p1 = 0x00, unsigned char p2 = 0x00);
int set_command_header_noopt(unsigned char ins, unsigned char p1 = 0x00, unsigned char p2 = 0x00);
void send_simple(unsigned char ins, unsigned char p1 = 0x00);
// hw running mode
device_mode mode;
// map public destination key to ephemeral destination key
Keymap key_map;
bool add_output_key_mapping(const crypto::public_key &Aout, const crypto::public_key &Bout, const bool is_subaddress, const bool is_change,
const bool need_additional, const size_t real_output_index,
const rct::key &amount_key, const crypto::public_key &out_eph_public_key);
// To speed up blockchain parsing the view key maybe handle here.
crypto::secret_key viewkey;
bool has_view_key;
//extra debug
#ifdef DEBUG_HWDEVICE
device *controle_device;
#endif
public:
device_ledger();
~device_ledger();
device_ledger(const device_ledger &device) = delete ;
device_ledger& operator=(const device_ledger &device) = delete;
explicit operator bool() const override {return this->connected(); }
bool reset(void);
/* ======================================================================= */
/* SETUP/TEARDOWN */
/* ======================================================================= */
bool set_name(const std::string &name) override;
const std::string get_name() const override;
bool init(void) override;
bool release() override;
bool connect(void) override;
bool disconnect() override;
bool connected(void) const;
bool set_mode(device_mode mode) override;
device_type get_type() const override {return device_type::LEDGER;};
device_protocol_t device_protocol() const override { return PROTOCOL_PROXY; };
/* ======================================================================= */
/* LOCKER */
/* ======================================================================= */
void lock(void) override;
void unlock(void) override;
bool try_lock(void) override;
/* ======================================================================= */
/* WALLET & ADDRESS */
/* ======================================================================= */
bool get_public_address(cryptonote::account_public_address &pubkey) override;
bool get_secret_keys(crypto::secret_key &viewkey , crypto::secret_key &spendkey) override;
bool generate_chacha_key(const cryptonote::account_keys &keys, crypto::chacha_key &key, uint64_t kdf_rounds) override;
/* ======================================================================= */
/* SUB ADDRESS */
/* ======================================================================= */
bool derive_subaddress_public_key(const crypto::public_key &pub, const crypto::key_derivation &derivation, const std::size_t output_index, crypto::public_key &derived_pub) override;
crypto::public_key get_subaddress_spend_public_key(const cryptonote::account_keys& keys, const cryptonote::subaddress_index& index) override;
std::vector<crypto::public_key> get_subaddress_spend_public_keys(const cryptonote::account_keys &keys, uint32_t account, uint32_t begin, uint32_t end) override;
cryptonote::account_public_address get_subaddress(const cryptonote::account_keys& keys, const cryptonote::subaddress_index &index) override;
crypto::secret_key get_subaddress_secret_key(const crypto::secret_key &sec, const cryptonote::subaddress_index &index) override;
/* ======================================================================= */
/* DERIVATION & KEY */
/* ======================================================================= */
bool verify_keys(const crypto::secret_key &secret_key, const crypto::public_key &public_key) override;
bool scalarmultKey(rct::key & aP, const rct::key &P, const rct::key &a) override;
bool scalarmultBase(rct::key &aG, const rct::key &a) override;
bool sc_secret_add(crypto::secret_key &r, const crypto::secret_key &a, const crypto::secret_key &b) override;
crypto::secret_key generate_keys(crypto::public_key &pub, crypto::secret_key &sec, const crypto::secret_key& recovery_key = crypto::secret_key(), bool recover = false) override;
bool generate_key_derivation(const crypto::public_key &pub, const crypto::secret_key &sec, crypto::key_derivation &derivation) override;
bool conceal_derivation(crypto::key_derivation &derivation, const crypto::public_key &tx_pub_key, const std::vector<crypto::public_key> &additional_tx_pub_keys, const crypto::key_derivation &main_derivation, const std::vector<crypto::key_derivation> &additional_derivations) override;
bool derivation_to_scalar(const crypto::key_derivation &derivation, const size_t output_index, crypto::ec_scalar &res) override;
bool derive_secret_key(const crypto::key_derivation &derivation, const std::size_t output_index, const crypto::secret_key &sec, crypto::secret_key &derived_sec) override;
bool derive_public_key(const crypto::key_derivation &derivation, const std::size_t output_index, const crypto::public_key &pub, crypto::public_key &derived_pub) override;
bool secret_key_to_public_key(const crypto::secret_key &sec, crypto::public_key &pub) override;
bool generate_key_image(const crypto::public_key &pub, const crypto::secret_key &sec, crypto::key_image &image) override;
/* ======================================================================= */
/* TRANSACTION */
/* ======================================================================= */
bool open_tx(crypto::secret_key &tx_key) override;
bool encrypt_payment_id(crypto::hash8 &payment_id, const crypto::public_key &public_key, const crypto::secret_key &secret_key) override;
bool ecdhEncode(rct::ecdhTuple & unmasked, const rct::key & sharedSec, bool short_format) override;
bool ecdhDecode(rct::ecdhTuple & masked, const rct::key & sharedSec, bool short_format) override;
bool generate_output_ephemeral_keys(const size_t tx_version, const cryptonote::account_keys &sender_account_keys, const crypto::public_key &txkey_pub, const crypto::secret_key &tx_key,
const cryptonote::tx_destination_entry &dst_entr, const boost::optional<cryptonote::account_public_address> &change_addr, const size_t output_index,
const bool &need_additional_txkeys, const std::vector<crypto::secret_key> &additional_tx_keys,
std::vector<crypto::public_key> &additional_tx_public_keys,
std::vector<rct::key> &amount_keys,
crypto::public_key &out_eph_public_key) override;
bool mlsag_prehash(const std::string &blob, size_t inputs_size, size_t outputs_size, const rct::keyV &hashes, const rct::ctkeyV &outPk, rct::key &prehash) override;
bool mlsag_prepare(const rct::key &H, const rct::key &xx, rct::key &a, rct::key &aG, rct::key &aHP, rct::key &rvII) override;
bool mlsag_prepare(rct::key &a, rct::key &aG) override;
bool mlsag_hash(const rct::keyV &long_message, rct::key &c) override;
bool mlsag_sign( const rct::key &c, const rct::keyV &xx, const rct::keyV &alpha, const size_t rows, const size_t dsRows, rct::keyV &ss) override;
bool close_tx(void) override;
};
#ifdef DEBUG_HWDEVICE
extern crypto::secret_key dbg_viewkey;
extern crypto::secret_key dbg_spendkey;
#endif
#endif //WITH_DEVICE_LEDGER
}
}
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