mirror of
https://codeberg.org/anoncontributorxmr/monero.git
synced 2024-11-23 10:37:37 -07:00
Arbitrary M/N multisig schemes:
* support in wallet2 * support in monero-wallet-cli * support in monero-wallet-rpc * support in wallet api * support in monero-gen-trusted-multisig * unit tests for multisig wallets creation
This commit is contained in:
naughtyfox
parent
8bf5a00564
commit
9f3963e823
@ -130,8 +130,8 @@ static bool generate_multisig(uint32_t threshold, uint32_t total, const std::str
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ss << " " << name << std::endl;
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}
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// finalize step if needed
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if (!extra_info[0].empty())
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//exchange keys unless exchange_multisig_keys returns no extra info
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while (!extra_info[0].empty())
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{
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std::unordered_set<crypto::public_key> pkeys;
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std::vector<crypto::public_key> signers(total);
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@ -145,11 +145,7 @@ static bool generate_multisig(uint32_t threshold, uint32_t total, const std::str
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}
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for (size_t n = 0; n < total; ++n)
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{
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if (!wallets[n]->finalize_multisig(pwd_container->password(), pkeys, signers))
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{
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tools::fail_msg_writer() << genms::tr("Error finalizing multisig");
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return false;
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}
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extra_info[n] = wallets[n]->exchange_multisig_keys(pwd_container->password(), pkeys, signers);
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}
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}
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@ -244,11 +240,6 @@ int main(int argc, char* argv[])
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return 1;
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}
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if (threshold != total-1 && threshold != total)
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{
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tools::fail_msg_writer() << genms::tr("Error: unsupported scheme: only N/N and N-1/N are supported");
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return 1;
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}
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bool create_address_file = command_line::get_arg(*vm, arg_create_address_file);
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if (!generate_multisig(threshold, total, basename, testnet ? TESTNET : stagenet ? STAGENET : MAINNET, create_address_file))
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return 1;
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@ -84,6 +84,43 @@ namespace cryptonote
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}
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}
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//-----------------------------------------------------------------
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std::vector<crypto::public_key> generate_multisig_derivations(const account_keys &keys, const std::vector<crypto::public_key> &derivations)
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{
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std::vector<crypto::public_key> multisig_keys;
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crypto::secret_key blinded_skey = get_multisig_blinded_secret_key(keys.m_spend_secret_key);
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for (const auto &k: derivations)
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{
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rct::key d = rct::scalarmultKey(rct::pk2rct(k), rct::sk2rct(blinded_skey));
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multisig_keys.push_back(rct::rct2pk(d));
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}
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return multisig_keys;
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}
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//-----------------------------------------------------------------
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crypto::secret_key calculate_multisig_signer_key(const std::vector<crypto::secret_key>& multisig_keys)
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{
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rct::key secret_key = rct::zero();
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for (const auto &k: multisig_keys)
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{
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sc_add(secret_key.bytes, secret_key.bytes, (const unsigned char*)k.data);
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}
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return rct::rct2sk(secret_key);
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}
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//-----------------------------------------------------------------
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std::vector<crypto::secret_key> calculate_multisig_keys(const std::vector<crypto::public_key>& derivations)
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{
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std::vector<crypto::secret_key> multisig_keys;
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multisig_keys.reserve(derivations.size());
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for (const auto &k: derivations)
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{
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multisig_keys.emplace_back(get_multisig_blinded_secret_key(rct::rct2sk(rct::pk2rct(k))));
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}
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return multisig_keys;
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}
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//-----------------------------------------------------------------
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crypto::secret_key generate_multisig_view_secret_key(const crypto::secret_key &skey, const std::vector<crypto::secret_key> &skeys)
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{
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rct::key view_skey = rct::sk2rct(get_multisig_blinded_secret_key(skey));
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@ -92,7 +129,7 @@ namespace cryptonote
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return rct::rct2sk(view_skey);
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}
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//-----------------------------------------------------------------
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crypto::public_key generate_multisig_N1_N_spend_public_key(const std::vector<crypto::public_key> &pkeys)
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crypto::public_key generate_multisig_M_N_spend_public_key(const std::vector<crypto::public_key> &pkeys)
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{
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rct::key spend_public_key = rct::identity();
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for (const auto &pk: pkeys)
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@ -141,4 +178,9 @@ namespace cryptonote
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return true;
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}
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//-----------------------------------------------------------------
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uint32_t multisig_rounds_required(uint32_t participants, uint32_t threshold)
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{
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CHECK_AND_ASSERT_THROW_MES(participants >= threshold, "participants must be greater or equal than threshold");
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return participants - threshold + 1;
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}
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}
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@ -41,9 +41,31 @@ namespace cryptonote
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crypto::secret_key get_multisig_blinded_secret_key(const crypto::secret_key &key);
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void generate_multisig_N_N(const account_keys &keys, const std::vector<crypto::public_key> &spend_keys, std::vector<crypto::secret_key> &multisig_keys, rct::key &spend_skey, rct::key &spend_pkey);
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void generate_multisig_N1_N(const account_keys &keys, const std::vector<crypto::public_key> &spend_keys, std::vector<crypto::secret_key> &multisig_keys, rct::key &spend_skey, rct::key &spend_pkey);
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/**
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* @brief generate_multisig_derivations performs common DH key derivation.
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* Each middle round in M/N scheme is DH exchange of public multisig keys of other participants multiplied by secret spend key of current participant.
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* this functions does the following: new multisig key = secret spend * public multisig key
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* @param keys - current wallet's keys
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* @param derivations - public multisig keys of other participants
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* @return new public multisig keys derived from previous round. This data needs to be exchange with other participants
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*/
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std::vector<crypto::public_key> generate_multisig_derivations(const account_keys &keys, const std::vector<crypto::public_key> &derivations);
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crypto::secret_key calculate_multisig_signer_key(const std::vector<crypto::secret_key>& derivations);
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/**
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* @brief calculate_multisig_keys. Calculates secret multisig keys from others' participants ones as follows: mi = H(Mi)
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* @param derivations - others' participants public multisig keys.
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* @return vector of current wallet's multisig secret keys
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*/
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std::vector<crypto::secret_key> calculate_multisig_keys(const std::vector<crypto::public_key>& derivations);
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crypto::secret_key generate_multisig_view_secret_key(const crypto::secret_key &skey, const std::vector<crypto::secret_key> &skeys);
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crypto::public_key generate_multisig_N1_N_spend_public_key(const std::vector<crypto::public_key> &pkeys);
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/**
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* @brief generate_multisig_M_N_spend_public_key calculates multisig wallet's spend public key by summing all of public multisig keys
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* @param pkeys unique public multisig keys
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* @return multisig wallet's spend public key
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*/
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crypto::public_key generate_multisig_M_N_spend_public_key(const std::vector<crypto::public_key> &pkeys);
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bool generate_multisig_key_image(const account_keys &keys, size_t multisig_key_index, const crypto::public_key& out_key, crypto::key_image& ki);
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void generate_multisig_LR(const crypto::public_key pkey, const crypto::secret_key &k, crypto::public_key &L, crypto::public_key &R);
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bool generate_multisig_composite_key_image(const account_keys &keys, const std::unordered_map<crypto::public_key, cryptonote::subaddress_index>& subaddresses, const crypto::public_key& out_key, const crypto::public_key &tx_public_key, const std::vector<crypto::public_key>& additional_tx_public_keys, size_t real_output_index, const std::vector<crypto::key_image> &pkis, crypto::key_image &ki);
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uint32_t multisig_rounds_required(uint32_t participants, uint32_t threshold);
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}
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@ -968,7 +968,7 @@ bool simple_wallet::make_multisig(const std::vector<std::string> &args)
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{
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success_msg_writer() << tr("Another step is needed");
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success_msg_writer() << multisig_extra_info;
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success_msg_writer() << tr("Send this multisig info to all other participants, then use finalize_multisig <info1> [<info2>...] with others' multisig info");
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success_msg_writer() << tr("Send this multisig info to all other participants, then use exchange_multisig_keys <info1> [<info2>...] with others' multisig info");
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return true;
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}
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}
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@ -1042,6 +1042,61 @@ bool simple_wallet::finalize_multisig(const std::vector<std::string> &args)
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return true;
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}
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bool simple_wallet::exchange_multisig_keys(const std::vector<std::string> &args) {
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bool ready;
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if (m_wallet->key_on_device())
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{
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fail_msg_writer() << tr("command not supported by HW wallet");
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return true;
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}
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if (!m_wallet->multisig(&ready))
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{
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fail_msg_writer() << tr("This wallet is not multisig");
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return true;
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}
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if (ready)
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{
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fail_msg_writer() << tr("This wallet is already finalized");
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return true;
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}
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const auto orig_pwd_container = get_and_verify_password();
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if(orig_pwd_container == boost::none)
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{
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fail_msg_writer() << tr("Your original password was incorrect.");
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return true;
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}
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if (args.size() < 2)
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{
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fail_msg_writer() << tr("usage: exchange_multisig_keys <multisiginfo1> [<multisiginfo2>...]");
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return true;
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}
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try
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{
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std::string multisig_extra_info = m_wallet->exchange_multisig_keys(orig_pwd_container->password(), args);
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if (!multisig_extra_info.empty())
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{
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message_writer() << tr("Another step is needed");
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message_writer() << multisig_extra_info;
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message_writer() << tr("Send this multisig info to all other participants, then use exchange_multisig_keys <info1> [<info2>...] with others' multisig info");
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return true;
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} else {
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uint32_t threshold, total;
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m_wallet->multisig(NULL, &threshold, &total);
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success_msg_writer() << tr("Multisig wallet has been successfully created. Current wallet type: ") << threshold << "/" << total;
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}
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}
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catch (const std::exception &e)
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{
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fail_msg_writer() << tr("Failed to perform multisig keys exchange: ") << e.what();
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return true;
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}
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return true;
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}
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bool simple_wallet::export_multisig(const std::vector<std::string> &args)
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{
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bool ready;
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@ -2552,6 +2607,10 @@ simple_wallet::simple_wallet()
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boost::bind(&simple_wallet::finalize_multisig, this, _1),
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tr("finalize_multisig <string> [<string>...]"),
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tr("Turn this wallet into a multisig wallet, extra step for N-1/N wallets"));
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m_cmd_binder.set_handler("exchange_multisig_keys",
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boost::bind(&simple_wallet::exchange_multisig_keys, this, _1),
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tr("exchange_multisig_keys <string> [<string>...]"),
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tr("Performs extra multisig keys exchange rounds. Needed for arbitrary M/N multisig wallets"));
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m_cmd_binder.set_handler("export_multisig_info",
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boost::bind(&simple_wallet::export_multisig, this, _1),
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tr("export_multisig_info <filename>"),
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@ -210,6 +210,7 @@ namespace cryptonote
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bool prepare_multisig(const std::vector<std::string>& args);
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bool make_multisig(const std::vector<std::string>& args);
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bool finalize_multisig(const std::vector<std::string> &args);
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bool exchange_multisig_keys(const std::vector<std::string> &args);
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bool export_multisig(const std::vector<std::string>& args);
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bool import_multisig(const std::vector<std::string>& args);
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bool accept_loaded_tx(const tools::wallet2::multisig_tx_set &txs);
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@ -1187,6 +1187,20 @@ string WalletImpl::makeMultisig(const vector<string>& info, uint32_t threshold)
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return string();
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}
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std::string WalletImpl::exchangeMultisigKeys(const std::vector<std::string> &info) {
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try {
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clearStatus();
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checkMultisigWalletNotReady(m_wallet);
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return m_wallet->exchange_multisig_keys(epee::wipeable_string(m_password), info);
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} catch (const exception& e) {
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LOG_ERROR("Error on exchanging multisig keys: ") << e.what();
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setStatusError(string(tr("Failed to make multisig: ")) + e.what());
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}
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return string();
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}
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bool WalletImpl::finalizeMultisig(const vector<string>& extraMultisigInfo) {
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try {
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clearStatus();
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@ -137,6 +137,7 @@ public:
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MultisigState multisig() const override;
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std::string getMultisigInfo() const override;
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std::string makeMultisig(const std::vector<std::string>& info, uint32_t threshold) override;
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std::string exchangeMultisigKeys(const std::vector<std::string> &info) override;
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bool finalizeMultisig(const std::vector<std::string>& extraMultisigInfo) override;
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bool exportMultisigImages(std::string& images) override;
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size_t importMultisigImages(const std::vector<std::string>& images) override;
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@ -706,6 +706,12 @@ struct Wallet
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* @return in case of N / N wallets returns empty string since no more key exchanges needed. For N - 1 / N wallets returns base58 encoded extra multisig info
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*/
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virtual std::string makeMultisig(const std::vector<std::string>& info, uint32_t threshold) = 0;
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/**
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* @brief exchange_multisig_keys - provides additional key exchange round for arbitrary multisig schemes (like N-1/N, M/N)
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* @param info - base58 encoded key derivations returned by makeMultisig or exchangeMultisigKeys function call
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* @return new info string if more rounds required or an empty string if wallet creation is done
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*/
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virtual std::string exchangeMultisigKeys(const std::vector<std::string> &info) = 0;
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/**
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* @brief finalizeMultisig - finalizes N - 1 / N multisig wallets creation
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* @param extraMultisigInfo - wallet participants' extra multisig info obtained with makeMultisig call
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@ -121,6 +121,7 @@ using namespace cryptonote;
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#define FIRST_REFRESH_GRANULARITY 1024
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static const std::string MULTISIG_SIGNATURE_MAGIC = "SigMultisigPkV1";
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static const std::string MULTISIG_EXTRA_INFO_MAGIC = "MultisigxV1";
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namespace
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{
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@ -132,6 +133,42 @@ namespace
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dir /= ".shared-ringdb";
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return dir.string();
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}
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std::string pack_multisignature_keys(const std::string& prefix, const std::vector<crypto::public_key>& keys, const crypto::secret_key& signer_secret_key)
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{
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std::string data;
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crypto::public_key signer;
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CHECK_AND_ASSERT_THROW_MES(crypto::secret_key_to_public_key(signer_secret_key, signer), "Failed to derive public spend key");
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data += std::string((const char *)&signer, sizeof(crypto::public_key));
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for (const auto &key: keys)
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{
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data += std::string((const char *)&key, sizeof(crypto::public_key));
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}
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data.resize(data.size() + sizeof(crypto::signature));
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crypto::hash hash;
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crypto::cn_fast_hash(data.data(), data.size() - sizeof(crypto::signature), hash);
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crypto::signature &signature = *(crypto::signature*)&data[data.size() - sizeof(crypto::signature)];
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crypto::generate_signature(hash, signer, signer_secret_key, signature);
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return MULTISIG_EXTRA_INFO_MAGIC + tools::base58::encode(data);
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}
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std::vector<crypto::public_key> secret_keys_to_public_keys(const std::vector<crypto::secret_key>& keys)
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{
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std::vector<crypto::public_key> public_keys;
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public_keys.reserve(keys.size());
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std::transform(keys.begin(), keys.end(), std::back_inserter(public_keys), [] (const crypto::secret_key& k) -> crypto::public_key {
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crypto::public_key p;
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CHECK_AND_ASSERT_THROW_MES(crypto::secret_key_to_public_key(k, p), "Failed to derive public spend key");
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return p;
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});
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return public_keys;
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}
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}
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namespace
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@ -758,6 +795,7 @@ wallet2::wallet2(network_type nettype, uint64_t kdf_rounds, bool unattended):
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m_callback(0),
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m_trusted_daemon(false),
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m_nettype(nettype),
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m_multisig_rounds_passed(0),
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m_always_confirm_transfers(true),
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m_print_ring_members(false),
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m_store_tx_info(true),
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@ -2885,6 +2923,7 @@ bool wallet2::clear()
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m_address_book.clear();
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m_subaddresses.clear();
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m_subaddress_labels.clear();
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m_multisig_rounds_passed = 0;
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return true;
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}
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@ -2899,6 +2938,7 @@ bool wallet2::store_keys(const std::string& keys_file_name, const epee::wipeable
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{
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std::string account_data;
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std::string multisig_signers;
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std::string multisig_derivations;
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cryptonote::account_base account = m_account;
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crypto::chacha_key key;
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@ -2951,6 +2991,14 @@ bool wallet2::store_keys(const std::string& keys_file_name, const epee::wipeable
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CHECK_AND_ASSERT_MES(r, false, "failed to serialize wallet multisig signers");
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value.SetString(multisig_signers.c_str(), multisig_signers.length());
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json.AddMember("multisig_signers", value, json.GetAllocator());
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r = ::serialization::dump_binary(m_multisig_derivations, multisig_derivations);
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CHECK_AND_ASSERT_MES(r, false, "failed to serialize wallet multisig derivations");
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value.SetString(multisig_derivations.c_str(), multisig_derivations.length());
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json.AddMember("multisig_derivations", value, json.GetAllocator());
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value2.SetUint(m_multisig_rounds_passed);
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json.AddMember("multisig_rounds_passed", value2, json.GetAllocator());
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}
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value2.SetInt(m_always_confirm_transfers ? 1 :0);
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@ -3123,6 +3171,8 @@ bool wallet2::load_keys(const std::string& keys_file_name, const epee::wipeable_
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m_multisig = false;
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m_multisig_threshold = 0;
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m_multisig_signers.clear();
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m_multisig_rounds_passed = 0;
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m_multisig_derivations.clear();
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m_always_confirm_transfers = false;
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m_print_ring_members = false;
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m_default_mixin = 0;
|
||||
@ -3181,6 +3231,8 @@ bool wallet2::load_keys(const std::string& keys_file_name, const epee::wipeable_
|
||||
m_multisig = field_multisig;
|
||||
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, multisig_threshold, unsigned int, Uint, m_multisig, 0);
|
||||
m_multisig_threshold = field_multisig_threshold;
|
||||
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, multisig_rounds_passed, unsigned int, Uint, false, 0);
|
||||
m_multisig_rounds_passed = field_multisig_rounds_passed;
|
||||
if (m_multisig)
|
||||
{
|
||||
if (!json.HasMember("multisig_signers"))
|
||||
@ -3201,6 +3253,24 @@ bool wallet2::load_keys(const std::string& keys_file_name, const epee::wipeable_
|
||||
LOG_ERROR("Field multisig_signers found in JSON, but failed to parse");
|
||||
return false;
|
||||
}
|
||||
|
||||
//previous version of multisig does not have this field
|
||||
if (json.HasMember("multisig_derivations"))
|
||||
{
|
||||
if (!json["multisig_derivations"].IsString())
|
||||
{
|
||||
LOG_ERROR("Field multisig_derivations found in JSON, but not String");
|
||||
return false;
|
||||
}
|
||||
const char *field_multisig_derivations = json["multisig_derivations"].GetString();
|
||||
std::string multisig_derivations = std::string(field_multisig_derivations, field_multisig_derivations + json["multisig_derivations"].GetStringLength());
|
||||
r = ::serialization::parse_binary(multisig_derivations, m_multisig_derivations);
|
||||
if (!r)
|
||||
{
|
||||
LOG_ERROR("Field multisig_derivations found in JSON, but failed to parse");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, always_confirm_transfers, int, Int, false, true);
|
||||
m_always_confirm_transfers = field_always_confirm_transfers;
|
||||
@ -3829,12 +3899,12 @@ std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
CHECK_AND_ASSERT_THROW_MES(!view_keys.empty(), "empty view keys");
|
||||
CHECK_AND_ASSERT_THROW_MES(view_keys.size() == spend_keys.size(), "Mismatched view/spend key sizes");
|
||||
CHECK_AND_ASSERT_THROW_MES(threshold > 1 && threshold <= spend_keys.size() + 1, "Invalid threshold");
|
||||
CHECK_AND_ASSERT_THROW_MES(threshold == spend_keys.size() || threshold == spend_keys.size() + 1, "Unsupported threshold case");
|
||||
|
||||
std::string extra_multisig_info;
|
||||
crypto::hash hash;
|
||||
|
||||
clear();
|
||||
std::vector<crypto::secret_key> multisig_keys;
|
||||
rct::key spend_pkey = rct::identity();
|
||||
rct::key spend_skey;
|
||||
std::vector<crypto::public_key> multisig_signers;
|
||||
|
||||
// decrypt keys
|
||||
epee::misc_utils::auto_scope_leave_caller keys_reencryptor;
|
||||
@ -3847,43 +3917,78 @@ std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
keys_reencryptor = epee::misc_utils::create_scope_leave_handler([&, this, chacha_key]() { m_account.encrypt_keys(chacha_key); m_account.decrypt_viewkey(chacha_key); });
|
||||
}
|
||||
|
||||
MINFO("Creating spend key...");
|
||||
std::vector<crypto::secret_key> multisig_keys;
|
||||
rct::key spend_pkey, spend_skey;
|
||||
// In common multisig scheme there are 4 types of key exchange rounds:
|
||||
// 1. First round is exchange of view secret keys and public spend keys.
|
||||
// 2. Middle round is exchange of derivations: Ki = b * Mj, where b - spend secret key,
|
||||
// M - public multisig key (in first round it equals to public spend key), K - new public multisig key.
|
||||
// 3. Secret spend establishment round sets your secret multisig keys as follows: kl = H(Ml), where M - is *your* public multisig key,
|
||||
// k - secret multisig key used to sign transactions. k and M are sets of keys, of course.
|
||||
// And secret spend key as the sum of all participant's secret multisig keys
|
||||
// 4. Last round establishes multisig wallet's public spend key. Participants exchange their public multisig keys
|
||||
// and calculate common spend public key as sum of all unique participants' public multisig keys.
|
||||
// Note that N/N scheme has only first round. N-1/N has 2 rounds: first and last. Common M/N has all 4 rounds.
|
||||
|
||||
// IMPORTANT: wallet's public spend key is not equal to secret_spend_key * G!
|
||||
// Wallet's public spend key is the sum of unique public multisig keys of all participants.
|
||||
// secret_spend_key * G = public signer key
|
||||
|
||||
if (threshold == spend_keys.size() + 1)
|
||||
{
|
||||
// In N / N case we only need to do one round and calculate secret multisig keys and new secret spend key
|
||||
MINFO("Creating spend key...");
|
||||
|
||||
// Calculates all multisig keys and spend key
|
||||
cryptonote::generate_multisig_N_N(get_account().get_keys(), spend_keys, multisig_keys, spend_skey, spend_pkey);
|
||||
}
|
||||
else if (threshold == spend_keys.size())
|
||||
{
|
||||
cryptonote::generate_multisig_N1_N(get_account().get_keys(), spend_keys, multisig_keys, spend_skey, spend_pkey);
|
||||
|
||||
// We need an extra step, so we package all the composite public keys
|
||||
// we know about, and make a signed string out of them
|
||||
std::string data;
|
||||
crypto::public_key signer;
|
||||
CHECK_AND_ASSERT_THROW_MES(crypto::secret_key_to_public_key(rct::rct2sk(spend_skey), signer), "Failed to derive public spend key");
|
||||
data += std::string((const char *)&signer, sizeof(crypto::public_key));
|
||||
|
||||
for (const auto &msk: multisig_keys)
|
||||
{
|
||||
rct::key pmsk = rct::scalarmultBase(rct::sk2rct(msk));
|
||||
data += std::string((const char *)&pmsk, sizeof(crypto::public_key));
|
||||
}
|
||||
|
||||
data.resize(data.size() + sizeof(crypto::signature));
|
||||
crypto::cn_fast_hash(data.data(), data.size() - sizeof(signature), hash);
|
||||
crypto::signature &signature = *(crypto::signature*)&data[data.size() - sizeof(crypto::signature)];
|
||||
crypto::generate_signature(hash, signer, rct::rct2sk(spend_skey), signature);
|
||||
|
||||
extra_multisig_info = std::string("MultisigxV1") + tools::base58::encode(data);
|
||||
// Our signer key is b * G, where b is secret spend key.
|
||||
multisig_signers = spend_keys;
|
||||
multisig_signers.push_back(get_multisig_signer_public_key(get_account().get_keys().m_spend_secret_key));
|
||||
}
|
||||
else
|
||||
{
|
||||
CHECK_AND_ASSERT_THROW_MES(false, "Unsupported threshold case");
|
||||
// We just got public spend keys of all participants and deriving multisig keys (set of Mi = b * Bi).
|
||||
// note that derivations are public keys as DH exchange suppose it to be
|
||||
auto derivations = cryptonote::generate_multisig_derivations(get_account().get_keys(), spend_keys);
|
||||
|
||||
spend_pkey = rct::identity();
|
||||
multisig_signers = std::vector<crypto::public_key>(spend_keys.size() + 1, crypto::null_pkey);
|
||||
|
||||
if (threshold == spend_keys.size())
|
||||
{
|
||||
// N - 1 / N case
|
||||
|
||||
// We need an extra step, so we package all the composite public keys
|
||||
// we know about, and make a signed string out of them
|
||||
MINFO("Creating spend key...");
|
||||
|
||||
// Calculating set of our secret multisig keys as follows: mi = H(Mi),
|
||||
// where mi - secret multisig key, Mi - others' participants public multisig key
|
||||
multisig_keys = cryptonote::calculate_multisig_keys(derivations);
|
||||
|
||||
// calculating current participant's spend secret key as sum of all secret multisig keys for current participant.
|
||||
// IMPORTANT: participant's secret spend key is not an entire wallet's secret spend!
|
||||
// Entire wallet's secret spend is sum of all unique secret multisig keys
|
||||
// among all of participants and is not held by anyone!
|
||||
spend_skey = rct::sk2rct(cryptonote::calculate_multisig_signer_key(multisig_keys));
|
||||
|
||||
// Preparing data for the last round to calculate common public spend key. The data contains public multisig keys.
|
||||
extra_multisig_info = pack_multisignature_keys(MULTISIG_EXTRA_INFO_MAGIC, secret_keys_to_public_keys(multisig_keys), rct::rct2sk(spend_skey));
|
||||
}
|
||||
else
|
||||
{
|
||||
// M / N case
|
||||
MINFO("Preparing keys for next exchange round...");
|
||||
|
||||
// Preparing data for middle round - packing new public multisig keys to exchage with others.
|
||||
extra_multisig_info = pack_multisignature_keys(MULTISIG_EXTRA_INFO_MAGIC, derivations, m_account.get_keys().m_spend_secret_key);
|
||||
spend_skey = rct::sk2rct(m_account.get_keys().m_spend_secret_key);
|
||||
|
||||
// Need to store middle keys to be able to proceed in case of wallet shutdown.
|
||||
m_multisig_derivations = derivations;
|
||||
}
|
||||
}
|
||||
|
||||
// the multisig view key is shared by all, make one all can derive
|
||||
clear();
|
||||
MINFO("Creating view key...");
|
||||
crypto::secret_key view_skey = cryptonote::generate_multisig_view_secret_key(get_account().get_keys().m_view_secret_key, view_keys);
|
||||
|
||||
@ -3895,18 +4000,10 @@ std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
m_account_public_address = m_account.get_keys().m_account_address;
|
||||
m_watch_only = false;
|
||||
m_multisig = true;
|
||||
m_multisig_threshold = threshold;
|
||||
m_key_device_type = hw::device::device_type::SOFTWARE;
|
||||
|
||||
if (threshold == spend_keys.size() + 1)
|
||||
{
|
||||
m_multisig_signers = spend_keys;
|
||||
m_multisig_signers.push_back(get_multisig_signer_public_key());
|
||||
}
|
||||
else
|
||||
{
|
||||
m_multisig_signers = std::vector<crypto::public_key>(spend_keys.size() + 1, crypto::null_pkey);
|
||||
}
|
||||
m_multisig_threshold = threshold;
|
||||
m_multisig_signers = multisig_signers;
|
||||
++m_multisig_rounds_passed;
|
||||
|
||||
// re-encrypt keys
|
||||
keys_reencryptor = epee::misc_utils::auto_scope_leave_caller();
|
||||
@ -3921,13 +4018,147 @@ std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
return extra_multisig_info;
|
||||
}
|
||||
|
||||
std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
const std::vector<std::string> &info,
|
||||
uint32_t threshold)
|
||||
std::string wallet2::exchange_multisig_keys(const epee::wipeable_string &password,
|
||||
const std::vector<std::string> &info)
|
||||
{
|
||||
THROW_WALLET_EXCEPTION_IF(info.empty(),
|
||||
error::wallet_internal_error, "Empty multisig info");
|
||||
|
||||
if (info[0].substr(0, MULTISIG_EXTRA_INFO_MAGIC.size()) != MULTISIG_EXTRA_INFO_MAGIC)
|
||||
{
|
||||
THROW_WALLET_EXCEPTION_IF(false,
|
||||
error::wallet_internal_error, "Unsupported info string");
|
||||
}
|
||||
|
||||
std::vector<crypto::public_key> signers;
|
||||
std::unordered_set<crypto::public_key> pkeys;
|
||||
|
||||
THROW_WALLET_EXCEPTION_IF(!unpack_extra_multisig_info(info, signers, pkeys),
|
||||
error::wallet_internal_error, "Bad extra multisig info");
|
||||
|
||||
return exchange_multisig_keys(password, pkeys, signers);
|
||||
}
|
||||
|
||||
std::string wallet2::exchange_multisig_keys(const epee::wipeable_string &password,
|
||||
std::unordered_set<crypto::public_key> derivations,
|
||||
std::vector<crypto::public_key> signers)
|
||||
{
|
||||
CHECK_AND_ASSERT_THROW_MES(!derivations.empty(), "empty pkeys");
|
||||
CHECK_AND_ASSERT_THROW_MES(!signers.empty(), "empty signers");
|
||||
|
||||
bool ready = false;
|
||||
CHECK_AND_ASSERT_THROW_MES(multisig(&ready), "The wallet is not multisig");
|
||||
CHECK_AND_ASSERT_THROW_MES(!ready, "Multisig wallet creation process has already been finished");
|
||||
|
||||
// keys are decrypted
|
||||
epee::misc_utils::auto_scope_leave_caller keys_reencryptor;
|
||||
if (m_ask_password == AskPasswordToDecrypt && !m_unattended && !m_watch_only)
|
||||
{
|
||||
crypto::chacha_key chacha_key;
|
||||
crypto::generate_chacha_key(password.data(), password.size(), chacha_key, m_kdf_rounds);
|
||||
m_account.encrypt_viewkey(chacha_key);
|
||||
m_account.decrypt_keys(chacha_key);
|
||||
keys_reencryptor = epee::misc_utils::create_scope_leave_handler([&, this, chacha_key]() { m_account.encrypt_keys(chacha_key); m_account.decrypt_viewkey(chacha_key); });
|
||||
}
|
||||
|
||||
if (m_multisig_rounds_passed == multisig_rounds_required(m_multisig_signers.size(), m_multisig_threshold) - 1)
|
||||
{
|
||||
// the last round is passed and we have to calculate spend public key
|
||||
// add ours if not included
|
||||
crypto::public_key local_signer = get_multisig_signer_public_key();
|
||||
|
||||
if (std::find(signers.begin(), signers.end(), local_signer) == signers.end())
|
||||
{
|
||||
signers.push_back(local_signer);
|
||||
for (const auto &msk: get_account().get_multisig_keys())
|
||||
{
|
||||
derivations.insert(rct::rct2pk(rct::scalarmultBase(rct::sk2rct(msk))));
|
||||
}
|
||||
}
|
||||
|
||||
CHECK_AND_ASSERT_THROW_MES(signers.size() == m_multisig_signers.size(), "Bad signers size");
|
||||
|
||||
// Summing all of unique public multisig keys to calculate common public spend key
|
||||
crypto::public_key spend_public_key = cryptonote::generate_multisig_M_N_spend_public_key(std::vector<crypto::public_key>(derivations.begin(), derivations.end()));
|
||||
m_account_public_address.m_spend_public_key = spend_public_key;
|
||||
m_account.finalize_multisig(spend_public_key);
|
||||
|
||||
m_multisig_signers = signers;
|
||||
std::sort(m_multisig_signers.begin(), m_multisig_signers.end(), [](const crypto::public_key &e0, const crypto::public_key &e1){ return memcmp(&e0, &e1, sizeof(e0)); });
|
||||
|
||||
++m_multisig_rounds_passed;
|
||||
m_multisig_derivations.clear();
|
||||
|
||||
// keys are encrypted again
|
||||
keys_reencryptor = epee::misc_utils::auto_scope_leave_caller();
|
||||
|
||||
if (!m_wallet_file.empty())
|
||||
{
|
||||
bool r = store_keys(m_keys_file, password, false);
|
||||
THROW_WALLET_EXCEPTION_IF(!r, error::file_save_error, m_keys_file);
|
||||
|
||||
if (boost::filesystem::exists(m_wallet_file + ".address.txt"))
|
||||
{
|
||||
r = file_io_utils::save_string_to_file(m_wallet_file + ".address.txt", m_account.get_public_address_str(m_nettype));
|
||||
if(!r) MERROR("String with address text not saved");
|
||||
}
|
||||
}
|
||||
|
||||
m_subaddresses.clear();
|
||||
m_subaddress_labels.clear();
|
||||
add_subaddress_account(tr("Primary account"));
|
||||
|
||||
if (!m_wallet_file.empty())
|
||||
store();
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
// Below are either middle or secret spend key establishment rounds
|
||||
|
||||
for (const auto& key: m_multisig_derivations)
|
||||
derivations.erase(key);
|
||||
|
||||
// Deriving multisig keys (set of Mi = b * Bi) according to DH from other participants' multisig keys.
|
||||
auto new_derivations = cryptonote::generate_multisig_derivations(get_account().get_keys(), std::vector<crypto::public_key>(derivations.begin(), derivations.end()));
|
||||
|
||||
std::string extra_multisig_info;
|
||||
if (m_multisig_rounds_passed == multisig_rounds_required(m_multisig_signers.size(), m_multisig_threshold) - 2) // next round is last
|
||||
{
|
||||
// Next round is last therefore we are performing secret spend establishment round as described above.
|
||||
MINFO("Creating spend key...");
|
||||
|
||||
// Calculating our secret multisig keys by hashing our public multisig keys.
|
||||
auto multisig_keys = cryptonote::calculate_multisig_keys(std::vector<crypto::public_key>(new_derivations.begin(), new_derivations.end()));
|
||||
// And summing it to get personal secret spend key
|
||||
crypto::secret_key spend_skey = cryptonote::calculate_multisig_signer_key(multisig_keys);
|
||||
|
||||
m_account.make_multisig(m_account.get_keys().m_view_secret_key, spend_skey, rct::rct2pk(rct::identity()), multisig_keys);
|
||||
|
||||
// Packing public multisig keys to exchange with others and calculate common public spend key in the last round
|
||||
extra_multisig_info = pack_multisignature_keys(MULTISIG_EXTRA_INFO_MAGIC, secret_keys_to_public_keys(multisig_keys), spend_skey);
|
||||
}
|
||||
else
|
||||
{
|
||||
// This is just middle round
|
||||
MINFO("Preparing keys for next exchange round...");
|
||||
extra_multisig_info = pack_multisignature_keys(MULTISIG_EXTRA_INFO_MAGIC, new_derivations, m_account.get_keys().m_spend_secret_key);
|
||||
m_multisig_derivations = new_derivations;
|
||||
}
|
||||
|
||||
++m_multisig_rounds_passed;
|
||||
|
||||
create_keys_file(m_wallet_file, false, password, boost::filesystem::exists(m_wallet_file + ".address.txt"));
|
||||
return extra_multisig_info;
|
||||
}
|
||||
|
||||
void wallet2::unpack_multisig_info(const std::vector<std::string>& info,
|
||||
std::vector<crypto::public_key> &public_keys,
|
||||
std::vector<crypto::secret_key> &secret_keys) const
|
||||
{
|
||||
// parse all multisig info
|
||||
std::vector<crypto::secret_key> secret_keys(info.size());
|
||||
std::vector<crypto::public_key> public_keys(info.size());
|
||||
public_keys.resize(info.size());
|
||||
secret_keys.resize(info.size());
|
||||
for (size_t i = 0; i < info.size(); ++i)
|
||||
{
|
||||
THROW_WALLET_EXCEPTION_IF(!verify_multisig_info(info[i], secret_keys[i], public_keys[i]),
|
||||
@ -3971,75 +4202,51 @@ std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
"Found local spend public key, but not local view secret key - something very weird");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
std::string wallet2::make_multisig(const epee::wipeable_string &password,
|
||||
const std::vector<std::string> &info,
|
||||
uint32_t threshold)
|
||||
{
|
||||
std::vector<crypto::secret_key> secret_keys(info.size());
|
||||
std::vector<crypto::public_key> public_keys(info.size());
|
||||
unpack_multisig_info(info, public_keys, secret_keys);
|
||||
return make_multisig(password, secret_keys, public_keys, threshold);
|
||||
}
|
||||
|
||||
bool wallet2::finalize_multisig(const epee::wipeable_string &password, std::unordered_set<crypto::public_key> pkeys, std::vector<crypto::public_key> signers)
|
||||
{
|
||||
CHECK_AND_ASSERT_THROW_MES(!pkeys.empty(), "empty pkeys");
|
||||
exchange_multisig_keys(password, pkeys, signers);
|
||||
return true;
|
||||
}
|
||||
|
||||
// keys are decrypted
|
||||
epee::misc_utils::auto_scope_leave_caller keys_reencryptor;
|
||||
if (m_ask_password == AskPasswordToDecrypt && !m_unattended && !m_watch_only)
|
||||
bool wallet2::unpack_extra_multisig_info(const std::vector<std::string>& info,
|
||||
std::vector<crypto::public_key> &signers,
|
||||
std::unordered_set<crypto::public_key> &pkeys) const
|
||||
{
|
||||
// parse all multisig info
|
||||
signers.resize(info.size(), crypto::null_pkey);
|
||||
for (size_t i = 0; i < info.size(); ++i)
|
||||
{
|
||||
crypto::chacha_key chacha_key;
|
||||
crypto::generate_chacha_key(password.data(), password.size(), chacha_key, m_kdf_rounds);
|
||||
m_account.encrypt_viewkey(chacha_key);
|
||||
m_account.decrypt_keys(chacha_key);
|
||||
keys_reencryptor = epee::misc_utils::create_scope_leave_handler([&, this, chacha_key]() { m_account.encrypt_keys(chacha_key); m_account.decrypt_viewkey(chacha_key); });
|
||||
}
|
||||
|
||||
// add ours if not included
|
||||
crypto::public_key local_signer;
|
||||
CHECK_AND_ASSERT_THROW_MES(crypto::secret_key_to_public_key(get_account().get_keys().m_spend_secret_key, local_signer),
|
||||
"Failed to derive public spend key");
|
||||
if (std::find(signers.begin(), signers.end(), local_signer) == signers.end())
|
||||
if (!verify_extra_multisig_info(info[i], pkeys, signers[i]))
|
||||
{
|
||||
signers.push_back(local_signer);
|
||||
for (const auto &msk: get_account().get_multisig_keys())
|
||||
{
|
||||
pkeys.insert(rct::rct2pk(rct::scalarmultBase(rct::sk2rct(msk))));
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
CHECK_AND_ASSERT_THROW_MES(signers.size() == m_multisig_signers.size(), "Bad signers size");
|
||||
|
||||
crypto::public_key spend_public_key = cryptonote::generate_multisig_N1_N_spend_public_key(std::vector<crypto::public_key>(pkeys.begin(), pkeys.end()));
|
||||
m_account_public_address.m_spend_public_key = spend_public_key;
|
||||
m_account.finalize_multisig(spend_public_key);
|
||||
|
||||
m_multisig_signers = signers;
|
||||
std::sort(m_multisig_signers.begin(), m_multisig_signers.end(), [](const crypto::public_key &e0, const crypto::public_key &e1){ return memcmp(&e0, &e1, sizeof(e0)); });
|
||||
|
||||
// keys are encrypted again
|
||||
keys_reencryptor = epee::misc_utils::auto_scope_leave_caller();
|
||||
|
||||
create_keys_file(m_wallet_file, false, password, boost::filesystem::exists(m_wallet_file + ".address.txt"));
|
||||
|
||||
m_subaddresses.clear();
|
||||
m_subaddress_labels.clear();
|
||||
add_subaddress_account(tr("Primary account"));
|
||||
|
||||
if (!m_wallet_file.empty())
|
||||
store();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool wallet2::finalize_multisig(const epee::wipeable_string &password, const std::vector<std::string> &info)
|
||||
{
|
||||
// parse all multisig info
|
||||
std::unordered_set<crypto::public_key> public_keys;
|
||||
std::vector<crypto::public_key> signers(info.size(), crypto::null_pkey);
|
||||
for (size_t i = 0; i < info.size(); ++i)
|
||||
{
|
||||
if (!verify_extra_multisig_info(info[i], public_keys, signers[i]))
|
||||
std::vector<crypto::public_key> signers;
|
||||
if (!unpack_extra_multisig_info(info, signers, public_keys))
|
||||
{
|
||||
MERROR("Bad multisig info");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return finalize_multisig(password, public_keys, signers);
|
||||
}
|
||||
|
||||
@ -4102,14 +4309,13 @@ bool wallet2::verify_multisig_info(const std::string &data, crypto::secret_key &
|
||||
|
||||
bool wallet2::verify_extra_multisig_info(const std::string &data, std::unordered_set<crypto::public_key> &pkeys, crypto::public_key &signer)
|
||||
{
|
||||
const size_t header_len = strlen("MultisigxV1");
|
||||
if (data.size() < header_len || data.substr(0, header_len) != "MultisigxV1")
|
||||
if (data.size() < MULTISIG_EXTRA_INFO_MAGIC.size() || data.substr(0, MULTISIG_EXTRA_INFO_MAGIC.size()) != MULTISIG_EXTRA_INFO_MAGIC)
|
||||
{
|
||||
MERROR("Multisig info header check error");
|
||||
return false;
|
||||
}
|
||||
std::string decoded;
|
||||
if (!tools::base58::decode(data.substr(header_len), decoded))
|
||||
if (!tools::base58::decode(data.substr(MULTISIG_EXTRA_INFO_MAGIC.size()), decoded))
|
||||
{
|
||||
MERROR("Multisig info decoding error");
|
||||
return false;
|
||||
|
||||
@ -573,6 +573,14 @@ namespace tools
|
||||
const std::vector<crypto::secret_key> &view_keys,
|
||||
const std::vector<crypto::public_key> &spend_keys,
|
||||
uint32_t threshold);
|
||||
std::string exchange_multisig_keys(const epee::wipeable_string &password,
|
||||
const std::vector<std::string> &info);
|
||||
/*!
|
||||
* \brief Any but first round of keys exchange
|
||||
*/
|
||||
std::string exchange_multisig_keys(const epee::wipeable_string &password,
|
||||
std::unordered_set<crypto::public_key> pkeys,
|
||||
std::vector<crypto::public_key> signers);
|
||||
/*!
|
||||
* \brief Finalizes creation of a multisig wallet
|
||||
*/
|
||||
@ -1245,6 +1253,12 @@ namespace tools
|
||||
bool get_rct_distribution(uint64_t &start_height, std::vector<uint64_t> &distribution);
|
||||
|
||||
uint64_t get_segregation_fork_height() const;
|
||||
void unpack_multisig_info(const std::vector<std::string>& info,
|
||||
std::vector<crypto::public_key> &public_keys,
|
||||
std::vector<crypto::secret_key> &secret_keys) const;
|
||||
bool unpack_extra_multisig_info(const std::vector<std::string>& info,
|
||||
std::vector<crypto::public_key> &signers,
|
||||
std::unordered_set<crypto::public_key> &pkeys) const;
|
||||
|
||||
void cache_tx_data(const cryptonote::transaction& tx, const crypto::hash &txid, tx_cache_data &tx_cache_data) const;
|
||||
|
||||
@ -1295,6 +1309,9 @@ namespace tools
|
||||
bool m_multisig; /*!< if > 1 spend secret key will not match spend public key */
|
||||
uint32_t m_multisig_threshold;
|
||||
std::vector<crypto::public_key> m_multisig_signers;
|
||||
//in case of general M/N multisig wallet we should perform N - M + 1 key exchange rounds and remember how many rounds are passed.
|
||||
uint32_t m_multisig_rounds_passed;
|
||||
std::vector<crypto::public_key> m_multisig_derivations;
|
||||
bool m_always_confirm_transfers;
|
||||
bool m_print_ring_members;
|
||||
bool m_store_tx_info; /*!< request txkey to be returned in RPC, and store in the wallet cache file */
|
||||
|
||||
@ -3119,7 +3119,7 @@ namespace tools
|
||||
return false;
|
||||
}
|
||||
|
||||
if (req.multisig_info.size() < threshold - 1)
|
||||
if (req.multisig_info.size() < 1 || req.multisig_info.size() > total)
|
||||
{
|
||||
er.code = WALLET_RPC_ERROR_CODE_THRESHOLD_NOT_REACHED;
|
||||
er.message = "Needs multisig info from more participants";
|
||||
@ -3146,6 +3146,55 @@ namespace tools
|
||||
return true;
|
||||
}
|
||||
//------------------------------------------------------------------------------------------------------------------------------
|
||||
bool wallet_rpc_server::on_exchange_multisig_keys(const wallet_rpc::COMMAND_RPC_EXCHANGE_MULTISIG_KEYS::request& req, wallet_rpc::COMMAND_RPC_EXCHANGE_MULTISIG_KEYS::response& res, epee::json_rpc::error& er)
|
||||
{
|
||||
if (!m_wallet) return not_open(er);
|
||||
if (m_restricted)
|
||||
{
|
||||
er.code = WALLET_RPC_ERROR_CODE_DENIED;
|
||||
er.message = "Command unavailable in restricted mode.";
|
||||
return false;
|
||||
}
|
||||
bool ready;
|
||||
uint32_t threshold, total;
|
||||
if (!m_wallet->multisig(&ready, &threshold, &total))
|
||||
{
|
||||
er.code = WALLET_RPC_ERROR_CODE_NOT_MULTISIG;
|
||||
er.message = "This wallet is not multisig";
|
||||
return false;
|
||||
}
|
||||
|
||||
if (ready)
|
||||
{
|
||||
er.code = WALLET_RPC_ERROR_CODE_ALREADY_MULTISIG;
|
||||
er.message = "This wallet is multisig, and already finalized";
|
||||
return false;
|
||||
}
|
||||
|
||||
if (req.multisig_info.size() < 1 || req.multisig_info.size() > total)
|
||||
{
|
||||
er.code = WALLET_RPC_ERROR_CODE_THRESHOLD_NOT_REACHED;
|
||||
er.message = "Needs multisig info from more participants";
|
||||
return false;
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
res.multisig_info = m_wallet->exchange_multisig_keys(req.password, req.multisig_info);
|
||||
if (res.multisig_info.empty())
|
||||
{
|
||||
res.address = m_wallet->get_account().get_public_address_str(m_wallet->nettype());
|
||||
}
|
||||
}
|
||||
catch (const std::exception &e)
|
||||
{
|
||||
er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
|
||||
er.message = std::string("Error calling exchange_multisig_info: ") + e.what();
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
//------------------------------------------------------------------------------------------------------------------------------
|
||||
bool wallet_rpc_server::on_sign_multisig(const wallet_rpc::COMMAND_RPC_SIGN_MULTISIG::request& req, wallet_rpc::COMMAND_RPC_SIGN_MULTISIG::response& res, epee::json_rpc::error& er)
|
||||
{
|
||||
if (!m_wallet) return not_open(er);
|
||||
|
||||
@ -141,6 +141,7 @@ namespace tools
|
||||
MAP_JON_RPC_WE("export_multisig_info", on_export_multisig, wallet_rpc::COMMAND_RPC_EXPORT_MULTISIG)
|
||||
MAP_JON_RPC_WE("import_multisig_info", on_import_multisig, wallet_rpc::COMMAND_RPC_IMPORT_MULTISIG)
|
||||
MAP_JON_RPC_WE("finalize_multisig", on_finalize_multisig, wallet_rpc::COMMAND_RPC_FINALIZE_MULTISIG)
|
||||
MAP_JON_RPC_WE("exchange_multisig_keys", on_exchange_multisig_keys, wallet_rpc::COMMAND_RPC_EXCHANGE_MULTISIG_KEYS)
|
||||
MAP_JON_RPC_WE("sign_multisig", on_sign_multisig, wallet_rpc::COMMAND_RPC_SIGN_MULTISIG)
|
||||
MAP_JON_RPC_WE("submit_multisig", on_submit_multisig, wallet_rpc::COMMAND_RPC_SUBMIT_MULTISIG)
|
||||
MAP_JON_RPC_WE("get_version", on_get_version, wallet_rpc::COMMAND_RPC_GET_VERSION)
|
||||
@ -218,6 +219,7 @@ namespace tools
|
||||
bool on_export_multisig(const wallet_rpc::COMMAND_RPC_EXPORT_MULTISIG::request& req, wallet_rpc::COMMAND_RPC_EXPORT_MULTISIG::response& res, epee::json_rpc::error& er);
|
||||
bool on_import_multisig(const wallet_rpc::COMMAND_RPC_IMPORT_MULTISIG::request& req, wallet_rpc::COMMAND_RPC_IMPORT_MULTISIG::response& res, epee::json_rpc::error& er);
|
||||
bool on_finalize_multisig(const wallet_rpc::COMMAND_RPC_FINALIZE_MULTISIG::request& req, wallet_rpc::COMMAND_RPC_FINALIZE_MULTISIG::response& res, epee::json_rpc::error& er);
|
||||
bool on_exchange_multisig_keys(const wallet_rpc::COMMAND_RPC_EXCHANGE_MULTISIG_KEYS::request& req, wallet_rpc::COMMAND_RPC_EXCHANGE_MULTISIG_KEYS::response& res, epee::json_rpc::error& er);
|
||||
bool on_sign_multisig(const wallet_rpc::COMMAND_RPC_SIGN_MULTISIG::request& req, wallet_rpc::COMMAND_RPC_SIGN_MULTISIG::response& res, epee::json_rpc::error& er);
|
||||
bool on_submit_multisig(const wallet_rpc::COMMAND_RPC_SUBMIT_MULTISIG::request& req, wallet_rpc::COMMAND_RPC_SUBMIT_MULTISIG::response& res, epee::json_rpc::error& er);
|
||||
bool on_get_version(const wallet_rpc::COMMAND_RPC_GET_VERSION::request& req, wallet_rpc::COMMAND_RPC_GET_VERSION::response& res, epee::json_rpc::error& er);
|
||||
|
||||
@ -1990,6 +1990,31 @@ namespace wallet_rpc
|
||||
};
|
||||
};
|
||||
|
||||
struct COMMAND_RPC_EXCHANGE_MULTISIG_KEYS
|
||||
{
|
||||
struct request
|
||||
{
|
||||
std::string password;
|
||||
std::vector<std::string> multisig_info;
|
||||
|
||||
BEGIN_KV_SERIALIZE_MAP()
|
||||
KV_SERIALIZE(password)
|
||||
KV_SERIALIZE(multisig_info)
|
||||
END_KV_SERIALIZE_MAP()
|
||||
};
|
||||
|
||||
struct response
|
||||
{
|
||||
std::string address;
|
||||
std::string multisig_info;
|
||||
|
||||
BEGIN_KV_SERIALIZE_MAP()
|
||||
KV_SERIALIZE(address)
|
||||
KV_SERIALIZE(multisig_info)
|
||||
END_KV_SERIALIZE_MAP()
|
||||
};
|
||||
};
|
||||
|
||||
struct COMMAND_RPC_SIGN_MULTISIG
|
||||
{
|
||||
struct request
|
||||
|
||||
@ -593,7 +593,7 @@ inline bool do_replay_file(const std::string& filename)
|
||||
std::vector<crypto::public_key> spend_public_keys; \
|
||||
for (const auto &k: all_multisig_keys) \
|
||||
spend_public_keys.push_back(k); \
|
||||
crypto::public_key spend_pkey = cryptonote::generate_multisig_N1_N_spend_public_key(spend_public_keys); \
|
||||
crypto::public_key spend_pkey = cryptonote::generate_multisig_M_N_spend_public_key(spend_public_keys); \
|
||||
for (size_t msidx = 0; msidx < total; ++msidx) \
|
||||
account[msidx].finalize_multisig(spend_pkey); \
|
||||
} \
|
||||
|
||||
@ -49,9 +49,19 @@ static const struct
|
||||
{
|
||||
"9t6Hn946u3eah5cuncH1hB5hGzsTUoevtf4SY7MHN5NgJZh2SFWsyVt3vUhuHyRKyrCQvr71Lfc1AevG3BXE11PQFoXDtD8",
|
||||
"bbd3175ef9fd9f5eefdc43035f882f74ad14c4cf1799d8b6f9001bc197175d02"
|
||||
},
|
||||
{
|
||||
"9zmAWoNyNPbgnYSm3nJNpAKHm6fCcs3MR94gBWxp9MCDUiMUhyYFfyQETUDLPF7DP6ZsmNo6LRxwPP9VmhHNxKrER9oGigT",
|
||||
"f2efae45bef1917a7430cda8fcffc4ee010e3178761aa41d4628e23b1fe2d501"
|
||||
},
|
||||
{
|
||||
"9ue8NJMg3WzKxTtmjeXzWYF5KmU6dC7LHEt9wvYdPn2qMmoFUa8hJJHhSHvJ46UEwpDyy5jSboNMRaDBKwU54NT42YcNUp5",
|
||||
"a4cef54ed3fd61cd78a2ceb82ecf85a903ad2db9a86fb77ff56c35c56016280a"
|
||||
}
|
||||
};
|
||||
|
||||
static const size_t KEYS_COUNT = 5;
|
||||
|
||||
static void make_wallet(unsigned int idx, tools::wallet2 &wallet)
|
||||
{
|
||||
ASSERT_TRUE(idx < sizeof(test_addresses) / sizeof(test_addresses[0]));
|
||||
@ -76,126 +86,87 @@ static void make_wallet(unsigned int idx, tools::wallet2 &wallet)
|
||||
}
|
||||
}
|
||||
|
||||
static void make_M_2_wallet(tools::wallet2 &wallet0, tools::wallet2 &wallet1, unsigned int M)
|
||||
static std::vector<std::string> exchange_round(std::vector<tools::wallet2>& wallets, const std::vector<std::string>& mis)
|
||||
{
|
||||
ASSERT_TRUE(M <= 2);
|
||||
|
||||
make_wallet(0, wallet0);
|
||||
make_wallet(1, wallet1);
|
||||
|
||||
std::vector<crypto::secret_key> sk0(1), sk1(1);
|
||||
std::vector<crypto::public_key> pk0(1), pk1(1);
|
||||
|
||||
wallet0.decrypt_keys("");
|
||||
std::string mi0 = wallet0.get_multisig_info();
|
||||
wallet0.encrypt_keys("");
|
||||
wallet1.decrypt_keys("");
|
||||
std::string mi1 = wallet1.get_multisig_info();
|
||||
wallet1.encrypt_keys("");
|
||||
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi1, sk0[0], pk0[0]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi0, sk1[0], pk1[0]));
|
||||
|
||||
ASSERT_FALSE(wallet0.multisig() || wallet1.multisig());
|
||||
wallet0.make_multisig("", sk0, pk0, M);
|
||||
wallet1.make_multisig("", sk1, pk1, M);
|
||||
|
||||
ASSERT_TRUE(wallet0.get_account().get_public_address_str(cryptonote::TESTNET) == wallet1.get_account().get_public_address_str(cryptonote::TESTNET));
|
||||
|
||||
bool ready;
|
||||
uint32_t threshold, total;
|
||||
ASSERT_TRUE(wallet0.multisig(&ready, &threshold, &total));
|
||||
ASSERT_TRUE(ready);
|
||||
ASSERT_TRUE(threshold == M);
|
||||
ASSERT_TRUE(total == 2);
|
||||
ASSERT_TRUE(wallet1.multisig(&ready, &threshold, &total));
|
||||
ASSERT_TRUE(ready);
|
||||
ASSERT_TRUE(threshold == M);
|
||||
ASSERT_TRUE(total == 2);
|
||||
}
|
||||
|
||||
static void make_M_3_wallet(tools::wallet2 &wallet0, tools::wallet2 &wallet1, tools::wallet2 &wallet2, unsigned int M)
|
||||
{
|
||||
ASSERT_TRUE(M <= 3);
|
||||
|
||||
make_wallet(0, wallet0);
|
||||
make_wallet(1, wallet1);
|
||||
make_wallet(2, wallet2);
|
||||
|
||||
std::vector<crypto::secret_key> sk0(2), sk1(2), sk2(2);
|
||||
std::vector<crypto::public_key> pk0(2), pk1(2), pk2(2);
|
||||
|
||||
wallet0.decrypt_keys("");
|
||||
std::string mi0 = wallet0.get_multisig_info();
|
||||
wallet0.encrypt_keys("");
|
||||
wallet1.decrypt_keys("");
|
||||
std::string mi1 = wallet1.get_multisig_info();
|
||||
wallet1.encrypt_keys("");
|
||||
wallet2.decrypt_keys("");
|
||||
std::string mi2 = wallet2.get_multisig_info();
|
||||
wallet2.encrypt_keys("");
|
||||
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi1, sk0[0], pk0[0]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi2, sk0[1], pk0[1]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi0, sk1[0], pk1[0]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi2, sk1[1], pk1[1]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi0, sk2[0], pk2[0]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_multisig_info(mi1, sk2[1], pk2[1]));
|
||||
|
||||
ASSERT_FALSE(wallet0.multisig() || wallet1.multisig() || wallet2.multisig());
|
||||
std::string mxi0 = wallet0.make_multisig("", sk0, pk0, M);
|
||||
std::string mxi1 = wallet1.make_multisig("", sk1, pk1, M);
|
||||
std::string mxi2 = wallet2.make_multisig("", sk2, pk2, M);
|
||||
|
||||
const size_t nset = !mxi0.empty() + !mxi1.empty() + !mxi2.empty();
|
||||
ASSERT_TRUE((M < 3 && nset == 3) || (M == 3 && nset == 0));
|
||||
|
||||
if (nset > 0)
|
||||
{
|
||||
std::unordered_set<crypto::public_key> pkeys;
|
||||
std::vector<crypto::public_key> signers(3, crypto::null_pkey);
|
||||
ASSERT_TRUE(tools::wallet2::verify_extra_multisig_info(mxi0, pkeys, signers[0]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_extra_multisig_info(mxi1, pkeys, signers[1]));
|
||||
ASSERT_TRUE(tools::wallet2::verify_extra_multisig_info(mxi2, pkeys, signers[2]));
|
||||
ASSERT_TRUE(pkeys.size() == 3);
|
||||
ASSERT_TRUE(wallet0.finalize_multisig("", pkeys, signers));
|
||||
ASSERT_TRUE(wallet1.finalize_multisig("", pkeys, signers));
|
||||
ASSERT_TRUE(wallet2.finalize_multisig("", pkeys, signers));
|
||||
std::vector<std::string> new_infos;
|
||||
for (size_t i = 0; i < wallets.size(); ++i) {
|
||||
new_infos.push_back(wallets[i].exchange_multisig_keys("", mis));
|
||||
}
|
||||
|
||||
ASSERT_TRUE(wallet0.get_account().get_public_address_str(cryptonote::TESTNET) == wallet1.get_account().get_public_address_str(cryptonote::TESTNET));
|
||||
ASSERT_TRUE(wallet0.get_account().get_public_address_str(cryptonote::TESTNET) == wallet2.get_account().get_public_address_str(cryptonote::TESTNET));
|
||||
return new_infos;
|
||||
}
|
||||
|
||||
static void make_wallets(std::vector<tools::wallet2>& wallets, unsigned int M)
|
||||
{
|
||||
ASSERT_TRUE(wallets.size() > 1 && wallets.size() <= KEYS_COUNT);
|
||||
ASSERT_TRUE(M <= wallets.size());
|
||||
|
||||
std::vector<std::string> mis(wallets.size());
|
||||
|
||||
for (size_t i = 0; i < wallets.size(); ++i) {
|
||||
make_wallet(i, wallets[i]);
|
||||
|
||||
wallets[i].decrypt_keys("");
|
||||
mis[i] = wallets[i].get_multisig_info();
|
||||
wallets[i].encrypt_keys("");
|
||||
}
|
||||
|
||||
for (auto& wallet: wallets) {
|
||||
ASSERT_FALSE(wallet.multisig() || wallet.multisig() || wallet.multisig());
|
||||
}
|
||||
|
||||
std::vector<std::string> mxis;
|
||||
for (size_t i = 0; i < wallets.size(); ++i) {
|
||||
// it's ok to put all of multisig keys in this function. it throws in case of error
|
||||
mxis.push_back(wallets[i].make_multisig("", mis, M));
|
||||
}
|
||||
|
||||
while (!mxis[0].empty()) {
|
||||
mxis = exchange_round(wallets, mxis);
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < wallets.size(); ++i) {
|
||||
ASSERT_TRUE(mxis[i].empty());
|
||||
bool ready;
|
||||
uint32_t threshold, total;
|
||||
ASSERT_TRUE(wallet0.multisig(&ready, &threshold, &total));
|
||||
ASSERT_TRUE(wallets[i].multisig(&ready, &threshold, &total));
|
||||
ASSERT_TRUE(ready);
|
||||
ASSERT_TRUE(threshold == M);
|
||||
ASSERT_TRUE(total == 3);
|
||||
ASSERT_TRUE(wallet1.multisig(&ready, &threshold, &total));
|
||||
ASSERT_TRUE(ready);
|
||||
ASSERT_TRUE(threshold == M);
|
||||
ASSERT_TRUE(total == 3);
|
||||
ASSERT_TRUE(wallet2.multisig(&ready, &threshold, &total));
|
||||
ASSERT_TRUE(ready);
|
||||
ASSERT_TRUE(threshold == M);
|
||||
ASSERT_TRUE(total == 3);
|
||||
ASSERT_TRUE(total == wallets.size());
|
||||
|
||||
if (i != 0) {
|
||||
// "equals" is transitive relation so we need only to compare first wallet's address to each others' addresses. no need to compare 0's address with itself.
|
||||
ASSERT_TRUE(wallets[0].get_account().get_public_address_str(cryptonote::TESTNET) == wallets[i].get_account().get_public_address_str(cryptonote::TESTNET));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
TEST(multisig, make_2_2)
|
||||
{
|
||||
tools::wallet2 wallet0, wallet1;
|
||||
make_M_2_wallet(wallet0, wallet1, 2);
|
||||
std::vector<tools::wallet2> wallets(2);
|
||||
make_wallets(wallets, 2);
|
||||
}
|
||||
|
||||
TEST(multisig, make_3_3)
|
||||
{
|
||||
tools::wallet2 wallet0, wallet1, wallet2;
|
||||
make_M_3_wallet(wallet0, wallet1, wallet2, 3);
|
||||
std::vector<tools::wallet2> wallets(3);
|
||||
make_wallets(wallets, 3);
|
||||
}
|
||||
|
||||
TEST(multisig, make_2_3)
|
||||
{
|
||||
tools::wallet2 wallet0, wallet1, wallet2;
|
||||
make_M_3_wallet(wallet0, wallet1, wallet2, 2);
|
||||
std::vector<tools::wallet2> wallets(3);
|
||||
make_wallets(wallets, 2);
|
||||
}
|
||||
|
||||
TEST(multisig, make_2_4)
|
||||
{
|
||||
std::vector<tools::wallet2> wallets(4);
|
||||
make_wallets(wallets, 2);
|
||||
}
|
||||
|
||||
TEST(multisig, make_2_5)
|
||||
{
|
||||
std::vector<tools::wallet2> wallets(5);
|
||||
make_wallets(wallets, 2);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user