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N-1/N multisig

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moneromooo-monero 2017-08-13 15:29:31 +01:00
parent cd64c7990c
commit f4eda44ce3
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
12 changed files with 849 additions and 143 deletions
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81
src/simplewallet/simplewallet.cpp
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@ -825,7 +825,14 @@ bool simple_wallet::make_multisig(const std::vector<std::string> &args)
try
{
m_wallet->make_multisig(orig_pwd_container->password(), secret_keys, public_keys, threshold);
std::string multisig_extra_info = m_wallet->make_multisig(orig_pwd_container->password(), secret_keys, public_keys, threshold);
if (!multisig_extra_info.empty())
{
success_msg_writer() << tr("Another step is needed");
success_msg_writer() << multisig_extra_info;
success_msg_writer() << tr("Send this multisig info to all other participants, then use finalize_multisig <info1> [<info2>...] with others' multisig info");
return true;
}
}
catch (const std::exception &e)
{
@ -840,6 +847,57 @@ bool simple_wallet::make_multisig(const std::vector<std::string> &args)
return true;
}
bool simple_wallet::finalize_multisig(const std::vector<std::string> &args)
{
if (!m_wallet->multisig())
{
fail_msg_writer() << tr("This wallet is not multisig");
return true;
}
const auto orig_pwd_container = get_and_verify_password();
if(orig_pwd_container == boost::none)
{
fail_msg_writer() << tr("Your original password was incorrect.");
return true;
}
if (args.size() < 2)
{
fail_msg_writer() << tr("usage: finalize_multisig <multisiginfo1> [<multisiginfo2>...]");
return true;
}
// parse all multisig info
std::unordered_set<crypto::public_key> public_keys;
std::vector<crypto::public_key> signers(args.size(), crypto::null_pkey);
for (size_t i = 0; i < args.size(); ++i)
{
if (!tools::wallet2::verify_extra_multisig_info(args[i], public_keys, signers[i]))
{
fail_msg_writer() << tr("Bad multisig info: ") << args[i];
return true;
}
}
// we have all pubkeys now
try
{
if (!m_wallet->finalize_multisig(orig_pwd_container->password(), public_keys, signers))
{
fail_msg_writer() << tr("Failed to finalize multisig");
return true;
}
}
catch (const std::exception &e)
{
fail_msg_writer() << tr("Failed to finalize multisig: ") << e.what();
return true;
}
return true;
}
bool simple_wallet::export_multisig(const std::vector<std::string> &args)
{
if (!m_wallet->multisig())
@ -869,9 +927,8 @@ bool simple_wallet::export_multisig(const std::vector<std::string> &args)
std::string header;
header += std::string((const char *)&keys.m_spend_public_key, sizeof(crypto::public_key));
header += std::string((const char *)&keys.m_view_public_key, sizeof(crypto::public_key));
crypto::hash hash;
cn_fast_hash(&m_wallet->get_account().get_keys().m_spend_secret_key, sizeof(crypto::secret_key), (char*)&hash);
header += std::string((const char *)&hash, sizeof(crypto::hash));
crypto::public_key signer = m_wallet->get_multisig_signer_public_key();
header += std::string((const char *)&signer, sizeof(crypto::public_key));
std::string ciphertext = m_wallet->encrypt_with_view_secret_key(header + oss.str());
bool r = epee::file_io_utils::save_string_to_file(filename, magic + ciphertext);
if (!r)
@ -908,7 +965,7 @@ bool simple_wallet::import_multisig(const std::vector<std::string> &args)
return true;
std::vector<std::vector<tools::wallet2::multisig_info>> info;
std::unordered_set<crypto::hash> seen;
std::unordered_set<crypto::public_key> seen;
for (size_t n = 0; n < args.size(); ++n)
{
const std::string filename = args[n];
@ -944,26 +1001,24 @@ bool simple_wallet::import_multisig(const std::vector<std::string> &args)
}
const crypto::public_key &public_spend_key = *(const crypto::public_key*)&data[0];
const crypto::public_key &public_view_key = *(const crypto::public_key*)&data[sizeof(crypto::public_key)];
const crypto::hash &hash = *(const crypto::hash*)&data[2*sizeof(crypto::public_key)];
const crypto::public_key &signer = *(const crypto::public_key*)&data[2*sizeof(crypto::public_key)];
const cryptonote::account_public_address &keys = m_wallet->get_account().get_keys().m_account_address;
if (public_spend_key != keys.m_spend_public_key || public_view_key != keys.m_view_public_key)
{
fail_msg_writer() << (boost::format(tr("Multisig info from %s is for a different account")) % filename).str();
return true;
}
crypto::hash this_hash;
cn_fast_hash(&m_wallet->get_account().get_keys().m_spend_secret_key, sizeof(crypto::secret_key), (char*)&this_hash);
if (this_hash == hash)
if (m_wallet->get_multisig_signer_public_key() == signer)
{
message_writer() << (boost::format(tr("Multisig info from %s is from this wallet, ignored")) % filename).str();
continue;
}
if (seen.find(hash) != seen.end())
if (seen.find(signer) != seen.end())
{
message_writer() << (boost::format(tr("Multisig info from %s already seen, ignored")) % filename).str();
continue;
}
seen.insert(hash);
seen.insert(signer);
try
{
@ -1721,6 +1776,10 @@ simple_wallet::simple_wallet()
m_cmd_binder.set_handler("make_multisig", boost::bind(&simple_wallet::make_multisig, this, _1),
tr("make_multisig <threshold> <string1> [<string>...]"),
tr("Turn this wallet into a multisig wallet"));
m_cmd_binder.set_handler("finalize_multisig",
boost::bind(&simple_wallet::finalize_multisig, this, _1),
tr("finalize_multisig <string> [<string>...]"),
tr("Turn this wallet into a multisig wallet, extra step for N-1/N wallets"));
m_cmd_binder.set_handler("export_multisig_info",
boost::bind(&simple_wallet::export_multisig, this, _1),
tr("export_multisig <filename>"),