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wallet: use raw encrypted data in multisig import/export RPC

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release-v0.12
moneromooo-monero 7 years ago
parent 2fa707d1a5
commit 31a97e761e
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
5 changed files with 73 additions and 163 deletions
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80
src/simplewallet/simplewallet.cpp
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@ -85,7 +85,6 @@ typedef cryptonote::simple_wallet sw;
#define MIN_RING_SIZE 5 // Used to inform user about min ring size -- does not track actual protocol
#define OUTPUT_EXPORT_FILE_MAGIC "Monero output export\003"
#define MULTISIG_EXPORT_FILE_MAGIC "Monero multisig export\001"
#define LOCK_IDLE_SCOPE() \
bool auto_refresh_enabled = m_auto_refresh_enabled.load(std::memory_order_relaxed); \
@ -916,21 +915,9 @@ bool simple_wallet::export_multisig(const std::vector<std::string> &args)
const std::string filename = args[0];
try
{
std::vector<tools::wallet2::multisig_info> outs = m_wallet->export_multisig();
cryptonote::blobdata ciphertext = m_wallet->export_multisig();
std::stringstream oss;
boost::archive::portable_binary_oarchive ar(oss);
ar << outs;
std::string magic(MULTISIG_EXPORT_FILE_MAGIC, strlen(MULTISIG_EXPORT_FILE_MAGIC));
const cryptonote::account_public_address &keys = m_wallet->get_account().get_keys().m_account_address;
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::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);
bool r = epee::file_io_utils::save_string_to_file(filename, ciphertext);
if (!r)
{
fail_msg_writer() << tr("failed to save file ") << filename;
@ -970,8 +957,7 @@ bool simple_wallet::import_multisig(const std::vector<std::string> &args)
if (m_wallet->ask_password() && !get_and_verify_password())
return true;
std::vector<std::vector<tools::wallet2::multisig_info>> info;
std::unordered_set<crypto::public_key> seen;
std::vector<cryptonote::blobdata> info;
for (size_t n = 0; n < args.size(); ++n)
{
const std::string filename = args[n];
@ -982,65 +968,7 @@ bool simple_wallet::import_multisig(const std::vector<std::string> &args)
fail_msg_writer() << tr("failed to read file ") << filename;
return true;
}
const size_t magiclen = strlen(MULTISIG_EXPORT_FILE_MAGIC);
if (data.size() < magiclen || memcmp(data.data(), MULTISIG_EXPORT_FILE_MAGIC, magiclen))
{
fail_msg_writer() << tr("Bad multisig info file magic in ") << filename;
return true;
}
try
{
data = m_wallet->decrypt_with_view_secret_key(std::string(data, magiclen));
}
catch (const std::exception &e)
{
fail_msg_writer() << tr("Failed to decrypt ") << filename << ": " << e.what();
return true;
}
const size_t headerlen = 3 * sizeof(crypto::public_key);
if (data.size() < headerlen)
{
fail_msg_writer() << tr("Bad data size from file ") << filename;
return true;
}
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::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;
}
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(signer) != seen.end())
{
message_writer() << (boost::format(tr("Multisig info from %s already seen, ignored")) % filename).str();
continue;
}
seen.insert(signer);
try
{
std::string body(data, headerlen);
std::istringstream iss(body);
std::vector<tools::wallet2::multisig_info> i;
boost::archive::portable_binary_iarchive ar(iss);
ar >> i;
message_writer() << (boost::format(tr("%u outputs found in %s")) % boost::lexical_cast<std::string>(i.size()) % filename).str();
info.push_back(std::move(i));
}
catch (const std::exception &e)
{
fail_msg_writer() << tr("Failed to import multisig info: ") << e.what();
return true;
}
info.push_back(std::move(data));
}
LOCK_IDLE_SCOPE();

61
src/wallet/wallet2.cpp
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@ -103,6 +103,8 @@ using namespace cryptonote;
#define KEY_IMAGE_EXPORT_FILE_MAGIC "Monero key image export\002"
#define MULTISIG_EXPORT_FILE_MAGIC "Monero multisig export\001"
namespace
{
// Create on-demand to prevent static initialization order fiasco issues.
@ -8421,7 +8423,7 @@ crypto::key_image wallet2::get_multisig_composite_key_image(size_t n) const
return ki;
}
//----------------------------------------------------------------------------------------------------
std::vector<tools::wallet2::multisig_info> wallet2::export_multisig()
cryptonote::blobdata wallet2::export_multisig()
{
std::vector<tools::wallet2::multisig_info> info;
@ -8456,7 +8458,19 @@ std::vector<tools::wallet2::multisig_info> wallet2::export_multisig()
info[n].m_signer = signer;
}
return info;
std::stringstream oss;
boost::archive::portable_binary_oarchive ar(oss);
ar << info;
std::string magic(MULTISIG_EXPORT_FILE_MAGIC, strlen(MULTISIG_EXPORT_FILE_MAGIC));
const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address;
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));
header += std::string((const char *)&signer, sizeof(crypto::public_key));
std::string ciphertext = encrypt_with_view_secret_key(header + oss.str());
return MULTISIG_EXPORT_FILE_MAGIC + ciphertext;
}
//----------------------------------------------------------------------------------------------------
void wallet2::update_multisig_rescan_info(const std::vector<std::vector<rct::key>> &multisig_k, const std::vector<std::vector<tools::wallet2::multisig_info>> &info, size_t n)
@ -8480,9 +8494,50 @@ void wallet2::update_multisig_rescan_info(const std::vector<std::vector<rct::key
m_key_images[td.m_key_image] = n;
}
//----------------------------------------------------------------------------------------------------
size_t wallet2::import_multisig(std::vector<std::vector<tools::wallet2::multisig_info>> info)
size_t wallet2::import_multisig(std::vector<cryptonote::blobdata> blobs)
{
CHECK_AND_ASSERT_THROW_MES(m_multisig, "Wallet is not multisig");
std::vector<std::vector<tools::wallet2::multisig_info>> info;
std::unordered_set<crypto::public_key> seen;
for (cryptonote::blobdata &data: blobs)
{
const size_t magiclen = strlen(MULTISIG_EXPORT_FILE_MAGIC);
THROW_WALLET_EXCEPTION_IF(data.size() < magiclen || memcmp(data.data(), MULTISIG_EXPORT_FILE_MAGIC, magiclen),
error::wallet_internal_error, "Bad multisig info file magic in ");
data = decrypt_with_view_secret_key(std::string(data, magiclen));
const size_t headerlen = 3 * sizeof(crypto::public_key);
THROW_WALLET_EXCEPTION_IF(data.size() < headerlen, error::wallet_internal_error, "Bad data size");
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::public_key &signer = *(const crypto::public_key*)&data[2*sizeof(crypto::public_key)];
const cryptonote::account_public_address &keys = get_account().get_keys().m_account_address;
THROW_WALLET_EXCEPTION_IF(public_spend_key != keys.m_spend_public_key || public_view_key != keys.m_view_public_key,
error::wallet_internal_error, "Multisig info is for a different account");
if (get_multisig_signer_public_key() == signer)
{
MINFO("Multisig info from this wallet ignored");
continue;
}
if (seen.find(signer) != seen.end())
{
MINFO("Duplicate multisig info ignored");
continue;
}
seen.insert(signer);
std::string body(data, headerlen);
std::istringstream iss(body);
std::vector<tools::wallet2::multisig_info> i;
boost::archive::portable_binary_iarchive ar(iss);
ar >> i;
MINFO(boost::format("%u outputs found") % boost::lexical_cast<std::string>(i.size()));
info.push_back(std::move(i));
}
CHECK_AND_ASSERT_THROW_MES(info.size() + 1 <= m_multisig_signers.size() && info.size() + 1 >= m_multisig_threshold, "Wrong number of multisig sources");
std::vector<std::vector<rct::key>> k;

4
src/wallet/wallet2.h
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@ -499,12 +499,12 @@ namespace tools
* Export multisig info
* This will generate and remember new k values
*/
std::vector<tools::wallet2::multisig_info> export_multisig();
cryptonote::blobdata export_multisig();
/*!
* Import a set of multisig info from multisig partners
* \return the number of inputs which were imported
*/
size_t import_multisig(std::vector<std::vector<tools::wallet2::multisig_info>> info);
size_t import_multisig(std::vector<cryptonote::blobdata> info);
/*!
* \brief Rewrites to the wallet file for wallet upgrade (doesn't generate key, assumes it's already there)
* \param wallet_name Name of wallet file (should exist)

54
src/wallet/wallet_rpc_server.cpp
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@ -2626,7 +2626,7 @@ namespace tools
return false;
}
std::vector<tools::wallet2::multisig_info> info;
cryptonote::blobdata info;
try
{
info = m_wallet->export_multisig();
@ -2638,20 +2638,7 @@ namespace tools
return false;
}
res.info.resize(info.size());
for (size_t n = 0; n < info.size(); ++n)
{
res.info[n].signer = epee::string_tools::pod_to_hex(info[n].m_signer);
res.info[n].LR.resize(info[n].m_LR.size());
for (size_t l = 0; l < info[n].m_LR.size(); ++l)
{
res.info[n].LR[l].L = epee::string_tools::pod_to_hex(info[n].m_LR[l].m_L);
res.info[n].LR[l].R = epee::string_tools::pod_to_hex(info[n].m_LR[l].m_R);
}
res.info[n].partial_key_images.resize(info[n].m_partial_key_images.size());
for (size_t l = 0; l < info[n].m_partial_key_images.size(); ++l)
res.info[n].partial_key_images[l] = epee::string_tools::pod_to_hex(info[n].m_partial_key_images[l]);
}
res.info = epee::string_tools::buff_to_hex_nodelimer(info);
return true;
}
@ -2687,42 +2674,15 @@ namespace tools
return false;
}
std::vector<std::vector<tools::wallet2::multisig_info>> info;
std::vector<cryptonote::blobdata> info;
info.resize(req.info.size());
for (size_t n = 0; n < info.size(); ++n)
{
info[n].resize(req.info[n].info.size());
for (size_t i = 0; i < info[n].size(); ++i)
if (!epee::string_tools::parse_hexstr_to_binbuff(req.info[n], info[n]))
{
const auto &src = req.info[n].info[i];
auto &dst = info[n][i];
if (!epee::string_tools::hex_to_pod(src.signer, dst.m_signer))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_ADDRESS;
er.message = "Failed to parse signer from multisig info";
return false;
}
dst.m_LR.resize(src.LR.size());
for (size_t l = 0; l < src.LR.size(); ++l)
{
if (!epee::string_tools::hex_to_pod(src.LR[l].L, dst.m_LR[l].m_L) || !epee::string_tools::hex_to_pod(src.LR[l].R, dst.m_LR[l].m_R))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_LR;
er.message = "Failed to parse L/R from multisig info";
return false;
}
}
dst.m_partial_key_images.resize(src.partial_key_images.size());
for (size_t l = 0; l < src.partial_key_images.size(); ++l)
{
if (!epee::string_tools::hex_to_pod(src.partial_key_images[l], dst.m_partial_key_images[l]))
{
er.code = WALLET_RPC_ERROR_CODE_WRONG_KEY_IMAGE;
er.message = "Failed to parse partial key image from multisig info";
return false;
}
}
er.code = WALLET_RPC_ERROR_CODE_BAD_HEX;
er.message = "Failed to parse hex.";
return false;
}
}

37
src/wallet/wallet_rpc_server_commands_defs.h
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@ -1567,30 +1567,6 @@ namespace wallet_rpc
};
};
struct LR_entry
{
std::string L;
std::string R;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(L)
KV_SERIALIZE(R)
END_KV_SERIALIZE_MAP()
};
struct multisig_info_entry
{
std::string signer;
std::vector<LR_entry> LR;
std::vector<std::string> partial_key_images;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(signer)
KV_SERIALIZE(LR)
KV_SERIALIZE(partial_key_images)
END_KV_SERIALIZE_MAP()
};
struct COMMAND_RPC_EXPORT_MULTISIG
{
struct request
@ -1601,7 +1577,7 @@ namespace wallet_rpc
struct response
{
std::vector<multisig_info_entry> info;
std::string info;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(info)
@ -1611,18 +1587,9 @@ namespace wallet_rpc
struct COMMAND_RPC_IMPORT_MULTISIG
{
struct participant_entry
{
std::vector<multisig_info_entry> info;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(info)
END_KV_SERIALIZE_MAP()
};
struct request
{
std::vector<participant_entry> info;
std::vector<std::string> info;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(info)

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