e745c1e38d
The basic approach it to delegate all sensitive data (master key, secret ephemeral key, key derivation, ....) and related operations to the device. As device has low memory, it does not keep itself the values (except for view/spend keys) but once computed there are encrypted (with AES are equivalent) and return back to monero-wallet-cli. When they need to be manipulated by the device, they are decrypted on receive. Moreover, using the client for storing the value in encrypted form limits the modification in the client code. Those values are transfered from one C-structure to another one as previously. The code modification has been done with the wishes to be open to any other hardware wallet. To achieve that a C++ class hw::Device has been introduced. Two initial implementations are provided: the "default", which remaps all calls to initial Monero code, and the "Ledger", which delegates all calls to Ledger device.
199 lines
7.8 KiB
C++
199 lines
7.8 KiB
C++
// Copyright (c) 2014-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include <fstream>
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#include "include_base_utils.h"
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#include "account.h"
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#include "warnings.h"
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#include "crypto/crypto.h"
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extern "C"
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{
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#include "crypto/keccak.h"
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}
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#include "cryptonote_basic_impl.h"
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#include "cryptonote_format_utils.h"
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#include "device/device.hpp"
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "account"
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using namespace std;
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DISABLE_VS_WARNINGS(4244 4345)
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namespace cryptonote
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{
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//-----------------------------------------------------------------
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hw::device& account_keys::get_device() const {
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return *m_device;
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}
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//-----------------------------------------------------------------
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void account_keys::set_device( hw::device &hwdev) {
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m_device = &hwdev;
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MCDEBUG("device", "account_keys::set_device device type: "<<typeid(hwdev).name());
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}
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//-----------------------------------------------------------------
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account_base::account_base()
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{
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set_null();
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}
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//-----------------------------------------------------------------
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void account_base::set_null()
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{
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m_keys = account_keys();
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}
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//-----------------------------------------------------------------
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void account_base::forget_spend_key()
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{
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m_keys.m_spend_secret_key = crypto::secret_key();
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m_keys.m_multisig_keys.clear();
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}
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//-----------------------------------------------------------------
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crypto::secret_key account_base::generate(const crypto::secret_key& recovery_key, bool recover, bool two_random)
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{
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crypto::secret_key first = generate_keys(m_keys.m_account_address.m_spend_public_key, m_keys.m_spend_secret_key, recovery_key, recover);
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// rng for generating second set of keys is hash of first rng. means only one set of electrum-style words needed for recovery
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crypto::secret_key second;
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keccak((uint8_t *)&m_keys.m_spend_secret_key, sizeof(crypto::secret_key), (uint8_t *)&second, sizeof(crypto::secret_key));
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generate_keys(m_keys.m_account_address.m_view_public_key, m_keys.m_view_secret_key, second, two_random ? false : true);
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struct tm timestamp = {0};
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timestamp.tm_year = 2014 - 1900; // year 2014
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timestamp.tm_mon = 6 - 1; // month june
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timestamp.tm_mday = 8; // 8th of june
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timestamp.tm_hour = 0;
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timestamp.tm_min = 0;
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timestamp.tm_sec = 0;
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if (recover)
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{
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m_creation_timestamp = mktime(×tamp);
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if (m_creation_timestamp == (uint64_t)-1) // failure
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m_creation_timestamp = 0; // lowest value
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}
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else
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{
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m_creation_timestamp = time(NULL);
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}
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return first;
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}
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//-----------------------------------------------------------------
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void account_base::create_from_keys(const cryptonote::account_public_address& address, const crypto::secret_key& spendkey, const crypto::secret_key& viewkey)
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{
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m_keys.m_account_address = address;
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m_keys.m_spend_secret_key = spendkey;
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m_keys.m_view_secret_key = viewkey;
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struct tm timestamp = {0};
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timestamp.tm_year = 2014 - 1900; // year 2014
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timestamp.tm_mon = 4 - 1; // month april
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timestamp.tm_mday = 15; // 15th of april
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timestamp.tm_hour = 0;
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timestamp.tm_min = 0;
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timestamp.tm_sec = 0;
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m_creation_timestamp = mktime(×tamp);
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if (m_creation_timestamp == (uint64_t)-1) // failure
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m_creation_timestamp = 0; // lowest value
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}
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//-----------------------------------------------------------------
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void account_base::create_from_device(const std::string &device_name)
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{
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hw::device &hwdev = hw::get_device(device_name);
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m_keys.set_device(hwdev);
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hwdev.set_name(device_name);
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MCDEBUG("ledger", "device type: "<<typeid(hwdev).name());
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hwdev.init();
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hwdev.connect();
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hwdev.get_public_address(m_keys.m_account_address);
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#ifdef DEBUG_HWDEVICE
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hwdev.get_secret_keys(m_keys.m_view_secret_key, m_keys.m_spend_secret_key);
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#endif
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struct tm timestamp = {0};
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timestamp.tm_year = 2014 - 1900; // year 2014
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timestamp.tm_mon = 4 - 1; // month april
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timestamp.tm_mday = 15; // 15th of april
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timestamp.tm_hour = 0;
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timestamp.tm_min = 0;
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timestamp.tm_sec = 0;
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m_creation_timestamp = mktime(×tamp);
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if (m_creation_timestamp == (uint64_t)-1) // failure
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m_creation_timestamp = 0; // lowest value
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}
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//-----------------------------------------------------------------
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void account_base::create_from_viewkey(const cryptonote::account_public_address& address, const crypto::secret_key& viewkey)
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{
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crypto::secret_key fake;
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memset(&fake, 0, sizeof(fake));
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create_from_keys(address, fake, viewkey);
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}
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//-----------------------------------------------------------------
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bool account_base::make_multisig(const crypto::secret_key &view_secret_key, const crypto::secret_key &spend_secret_key, const crypto::public_key &spend_public_key, const std::vector<crypto::secret_key> &multisig_keys)
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{
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m_keys.m_account_address.m_spend_public_key = spend_public_key;
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m_keys.m_view_secret_key = view_secret_key;
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m_keys.m_spend_secret_key = spend_secret_key;
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m_keys.m_multisig_keys = multisig_keys;
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return crypto::secret_key_to_public_key(view_secret_key, m_keys.m_account_address.m_view_public_key);
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}
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//-----------------------------------------------------------------
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void account_base::finalize_multisig(const crypto::public_key &spend_public_key)
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{
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m_keys.m_account_address.m_spend_public_key = spend_public_key;
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}
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//-----------------------------------------------------------------
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const account_keys& account_base::get_keys() const
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{
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return m_keys;
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}
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//-----------------------------------------------------------------
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std::string account_base::get_public_address_str(bool testnet) const
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{
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//TODO: change this code into base 58
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return get_account_address_as_str(testnet, false, m_keys.m_account_address);
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}
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//-----------------------------------------------------------------
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std::string account_base::get_public_integrated_address_str(const crypto::hash8 &payment_id, bool testnet) const
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{
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//TODO: change this code into base 58
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return get_account_integrated_address_as_str(testnet, m_keys.m_account_address, payment_id);
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}
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//-----------------------------------------------------------------
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}
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