1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
// Copyright (c) 2017-2020, 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.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
/*!
* \file gen_multisig.cpp
*
* \brief Generates a set of multisig wallets
*/
#include <iostream>
#include <sstream>
#include <boost/program_options.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/format.hpp>
#include "include_base_utils.h"
#include "crypto/crypto.h" // for crypto::secret_key definition
#include "common/i18n.h"
#include "common/command_line.h"
#include "common/util.h"
#include "common/scoped_message_writer.h"
#include "wallet/wallet_args.h"
#include "wallet/wallet2.h"
using namespace std;
using namespace epee;
using namespace cryptonote;
using boost::lexical_cast;
namespace po = boost::program_options;
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "wallet.gen_multisig"
namespace genms
{
const char* tr(const char* str)
{
return i18n_translate(str, "tools::gen_multisig");
}
}
namespace
{
const command_line::arg_descriptor<std::string> arg_filename_base = {"filename-base", genms::tr("Base filename (-1, -2, etc suffixes will be appended as needed)"), ""};
const command_line::arg_descriptor<std::string> arg_scheme = {"scheme", genms::tr("Give threshold and participants at once as M/N"), ""};
const command_line::arg_descriptor<uint32_t> arg_participants = {"participants", genms::tr("How many participants will share parts of the multisig wallet"), 0};
const command_line::arg_descriptor<uint32_t> arg_threshold = {"threshold", genms::tr("How many signers are required to sign a valid transaction"), 0};
const command_line::arg_descriptor<bool, false> arg_testnet = {"testnet", genms::tr("Create testnet multisig wallets"), false};
const command_line::arg_descriptor<bool, false> arg_stagenet = {"stagenet", genms::tr("Create stagenet multisig wallets"), false};
const command_line::arg_descriptor<bool, false> arg_create_address_file = {"create-address-file", genms::tr("Create an address file for new wallets"), false};
}
static bool generate_multisig(uint32_t threshold, uint32_t total, const std::string &basename, network_type nettype, bool create_address_file)
{
tools::msg_writer() << (boost::format(genms::tr("Generating %u %u/%u multisig wallets")) % total % threshold % total).str();
const auto pwd_container = tools::password_container::prompt(true, "Enter password for new multisig wallets");
try
{
// create M wallets first
std::vector<boost::shared_ptr<tools::wallet2>> wallets(total);
for (size_t n = 0; n < total; ++n)
{
std::string name = basename + "-" + std::to_string(n + 1);
wallets[n].reset(new tools::wallet2(nettype, 1, false));
wallets[n]->init("");
wallets[n]->generate(name, pwd_container->password(), rct::rct2sk(rct::skGen()), false, false, create_address_file);
}
// gather the keys
std::vector<crypto::secret_key> sk(total);
std::vector<crypto::public_key> pk(total);
for (size_t n = 0; n < total; ++n)
{
wallets[n]->decrypt_keys(pwd_container->password());
if (!tools::wallet2::verify_multisig_info(wallets[n]->get_multisig_info(), sk[n], pk[n]))
{
tools::fail_msg_writer() << genms::tr("Failed to verify multisig info");
return false;
}
wallets[n]->encrypt_keys(pwd_container->password());
}
// make the wallets multisig
std::vector<std::string> extra_info(total);
std::stringstream ss;
for (size_t n = 0; n < total; ++n)
{
std::string name = basename + "-" + std::to_string(n + 1);
std::vector<crypto::secret_key> skn;
std::vector<crypto::public_key> pkn;
for (size_t k = 0; k < total; ++k)
{
if (k != n)
{
skn.push_back(sk[k]);
pkn.push_back(pk[k]);
}
}
extra_info[n] = wallets[n]->make_multisig(pwd_container->password(), skn, pkn, threshold);
ss << " " << name << std::endl;
}
//exchange keys unless exchange_multisig_keys returns no extra info
while (!extra_info[0].empty())
{
std::unordered_set<crypto::public_key> pkeys;
std::vector<crypto::public_key> signers(total);
for (size_t n = 0; n < total; ++n)
{
if (!tools::wallet2::verify_extra_multisig_info(extra_info[n], pkeys, signers[n]))
{
tools::fail_msg_writer() << genms::tr("Error verifying multisig extra info");
return false;
}
}
for (size_t n = 0; n < total; ++n)
{
extra_info[n] = wallets[n]->exchange_multisig_keys(pwd_container->password(), pkeys, signers);
}
}
std::string address = wallets[0]->get_account().get_public_address_str(wallets[0]->nettype());
tools::success_msg_writer() << genms::tr("Generated multisig wallets for address ") << address << std::endl << ss.str();
}
catch (const std::exception &e)
{
tools::fail_msg_writer() << genms::tr("Error creating multisig wallets: ") << e.what();
return false;
}
return true;
}
int main(int argc, char* argv[])
{
TRY_ENTRY();
po::options_description desc_params(wallet_args::tr("Wallet options"));
command_line::add_arg(desc_params, arg_filename_base);
command_line::add_arg(desc_params, arg_scheme);
command_line::add_arg(desc_params, arg_threshold);
command_line::add_arg(desc_params, arg_participants);
command_line::add_arg(desc_params, arg_testnet);
command_line::add_arg(desc_params, arg_stagenet);
command_line::add_arg(desc_params, arg_create_address_file);
boost::optional<po::variables_map> vm;
bool should_terminate = false;
std::tie(vm, should_terminate) = wallet_args::main(
argc, argv,
"monero-gen-multisig [(--testnet|--stagenet)] [--filename-base=<filename>] [--scheme=M/N] [--threshold=M] [--participants=N]",
genms::tr("This program generates a set of multisig wallets - use this simpler scheme only if all the participants trust each other"),
desc_params,
boost::program_options::positional_options_description(),
[](const std::string &s, bool emphasis){ tools::scoped_message_writer(emphasis ? epee::console_color_white : epee::console_color_default, true) << s; },
"monero-gen-multisig.log"
);
if (!vm)
return 1;
if (should_terminate)
return 0;
bool testnet, stagenet;
uint32_t threshold = 0, total = 0;
std::string basename;
testnet = command_line::get_arg(*vm, arg_testnet);
stagenet = command_line::get_arg(*vm, arg_stagenet);
if (testnet && stagenet)
{
tools::fail_msg_writer() << genms::tr("Error: Can't specify more than one of --testnet and --stagenet");
return 1;
}
if (command_line::has_arg(*vm, arg_scheme))
{
if (sscanf(command_line::get_arg(*vm, arg_scheme).c_str(), "%u/%u", &threshold, &total) != 2)
{
tools::fail_msg_writer() << genms::tr("Error: expected N/M, but got: ") << command_line::get_arg(*vm, arg_scheme);
return 1;
}
}
if (!(*vm)["threshold"].defaulted())
{
if (threshold)
{
tools::fail_msg_writer() << genms::tr("Error: either --scheme or both of --threshold and --participants may be given");
return 1;
}
threshold = command_line::get_arg(*vm, arg_threshold);
}
if (!(*vm)["participants"].defaulted())
{
if (total)
{
tools::fail_msg_writer() << genms::tr("Error: either --scheme or both of --threshold and --participants may be given");
return 1;
}
total = command_line::get_arg(*vm, arg_participants);
}
if (threshold <= 1 || threshold > total)
{
tools::fail_msg_writer() << (boost::format(genms::tr("Error: expected N > 1 and N <= M, but got N==%u and M==%d")) % threshold % total).str();
return 1;
}
if (!(*vm)["filename-base"].defaulted() && !command_line::get_arg(*vm, arg_filename_base).empty())
{
basename = command_line::get_arg(*vm, arg_filename_base);
}
else
{
tools::fail_msg_writer() << genms::tr("Error: --filename-base is required");
return 1;
}
bool create_address_file = command_line::get_arg(*vm, arg_create_address_file);
if (!generate_multisig(threshold, total, basename, testnet ? TESTNET : stagenet ? STAGENET : MAINNET, create_address_file))
return 1;
return 0;
CATCH_ENTRY_L0("main", 1);
}
|
