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wallet: factor multisig info parsing

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This commit is contained in:
moneromooo-monero 2017-11-18 11:24:38 +00:00
parent 31a97e761e
commit 98db7ee467
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
4 changed files with 68 additions and 102 deletions
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57
src/simplewallet/simplewallet.cpp
View file

@ -771,61 +771,13 @@ bool simple_wallet::make_multisig(const std::vector<std::string> &args)
return true;
}
// parse all multisig info
std::vector<crypto::secret_key> secret_keys(args.size() - 1);
std::vector<crypto::public_key> public_keys(args.size() - 1);
for (size_t i = 1; i < args.size(); ++i)
{
if (!tools::wallet2::verify_multisig_info(args[i], secret_keys[i - 1], public_keys[i - 1]))
{
fail_msg_writer() << tr("Bad multisig info: ") << args[i];
return true;
}
}
// remove duplicates
for (size_t i = 0; i < secret_keys.size(); ++i)
{
for (size_t j = i + 1; j < secret_keys.size(); ++j)
{
if (rct::sk2rct(secret_keys[i]) == rct::sk2rct(secret_keys[j]))
{
message_writer() << tr("Duplicate key found, ignoring");
secret_keys[j] = secret_keys.back();
public_keys[j] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--j;
}
}
}
// people may include their own, weed it out
const crypto::secret_key local_skey = cryptonote::get_multisig_blinded_secret_key(m_wallet->get_account().get_keys().m_view_secret_key);
const crypto::public_key local_pkey = m_wallet->get_multisig_signer_public_key(m_wallet->get_account().get_keys().m_spend_secret_key);
for (size_t i = 0; i < secret_keys.size(); ++i)
{
if (secret_keys[i] == local_skey)
{
message_writer() << tr("Local key is present, ignoring");
secret_keys[i] = secret_keys.back();
public_keys[i] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--i;
}
else if (public_keys[i] == local_pkey)
{
fail_msg_writer() << tr("Found local spend public key, but not local view secret key - something very weird");
return true;
}
}
LOCK_IDLE_SCOPE();
try
{
std::string multisig_extra_info = m_wallet->make_multisig(orig_pwd_container->password(), secret_keys, public_keys, threshold);
auto local_args = args;
local_args.erase(local_args.begin());
std::string multisig_extra_info = m_wallet->make_multisig(orig_pwd_container->password(), local_args, threshold);
if (!multisig_extra_info.empty())
{
success_msg_writer() << tr("Another step is needed");
@ -840,7 +792,8 @@ bool simple_wallet::make_multisig(const std::vector<std::string> &args)
return true;
}
uint32_t total = secret_keys.size() + 1;
uint32_t total;
m_wallet->multisig(NULL, &threshold, &total);
success_msg_writer() << std::to_string(threshold) << "/" << total << tr(" multisig address: ")
<< m_wallet->get_account().get_public_address_str(m_wallet->testnet());

54
src/wallet/wallet2.cpp
View file

@ -2895,6 +2895,60 @@ 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)
{
// parse all multisig info
std::vector<crypto::secret_key> secret_keys(info.size());
std::vector<crypto::public_key> public_keys(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]),
error::wallet_internal_error, "Bad multisig info: " + info[i]);
}
// remove duplicates
for (size_t i = 0; i < secret_keys.size(); ++i)
{
for (size_t j = i + 1; j < secret_keys.size(); ++j)
{
if (rct::sk2rct(secret_keys[i]) == rct::sk2rct(secret_keys[j]))
{
MDEBUG("Duplicate key found, ignoring");
secret_keys[j] = secret_keys.back();
public_keys[j] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--j;
}
}
}
// people may include their own, weed it out
const crypto::secret_key local_skey = cryptonote::get_multisig_blinded_secret_key(get_account().get_keys().m_view_secret_key);
const crypto::public_key local_pkey = get_multisig_signer_public_key(get_account().get_keys().m_spend_secret_key);
for (size_t i = 0; i < secret_keys.size(); ++i)
{
if (secret_keys[i] == local_skey)
{
MDEBUG("Local key is present, ignoring");
secret_keys[i] = secret_keys.back();
public_keys[i] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--i;
}
else
{
THROW_WALLET_EXCEPTION_IF(public_keys[i] == local_pkey, error::wallet_internal_error,
"Found local spend public key, but not local view secret key - something very weird");
}
}
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");

8
src/wallet/wallet2.h
View file

@ -471,6 +471,14 @@ namespace tools
* \return empty if done, non empty if we need to send another string
* to other participants
*/
std::string make_multisig(const epee::wipeable_string &password,
const std::vector<std::string> &info,
uint32_t threshold);
/*!
* \brief Creates a multisig wallet
* \return empty if done, non empty if we need to send another string
* to other participants
*/
std::string make_multisig(const epee::wipeable_string &password,
const std::vector<crypto::secret_key> &view_keys,
const std::vector<crypto::public_key> &spend_keys,

51
src/wallet/wallet_rpc_server.cpp
View file

@ -2539,58 +2539,9 @@ namespace tools
return false;
}
// parse all multisig info
std::vector<crypto::secret_key> secret_keys(req.multisig_info.size());
std::vector<crypto::public_key> public_keys(req.multisig_info.size());
for (size_t i = 0; i < req.multisig_info.size(); ++i)
{
if (!m_wallet->verify_multisig_info(req.multisig_info[i], secret_keys[i], public_keys[i]))
{
er.code = WALLET_RPC_ERROR_CODE_BAD_MULTISIG_INFO;
er.message = "Bad multisig info: " + req.multisig_info[i];
return false;
}
}
// remove duplicates
for (size_t i = 1; i < secret_keys.size(); ++i)
{
for (size_t j = i + 1; j < secret_keys.size(); ++j)
{
if (rct::sk2rct(secret_keys[i]) == rct::sk2rct(secret_keys[j]))
{
secret_keys[j] = secret_keys.back();
public_keys[j] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--j;
}
}
}
// people may include their own, weed it out
crypto::secret_key local_skey = cryptonote::get_multisig_blinded_secret_key(m_wallet->get_account().get_keys().m_view_secret_key);
for (size_t i = 0; i < secret_keys.size(); ++i)
{
if (rct::sk2rct(secret_keys[i]) == rct::sk2rct(local_skey))
{
secret_keys[i] = secret_keys.back();
public_keys[i] = public_keys.back();
secret_keys.pop_back();
public_keys.pop_back();
--i;
}
else if (public_keys[i] == m_wallet->get_account().get_keys().m_account_address.m_spend_public_key)
{
er.code = WALLET_RPC_ERROR_CODE_BAD_MULTISIG_INFO;
er.message = "Found local spend public key, but not local view secret key - something very weird";
return false;
}
}
try
{
res.multisig_info = m_wallet->make_multisig(req.password, secret_keys, public_keys, req.threshold);
res.multisig_info = m_wallet->make_multisig(req.password, req.multisig_info, req.threshold);
res.address = m_wallet->get_account().get_public_address_str(m_wallet->testnet());
}
catch (const std::exception &e)