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Merge pull request #2554

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d74336d5 wallet: encrypt (un)signed tx, also optionally save unencrypted raw tx hexstr (stoffu)
This commit is contained in:
Riccardo Spagni 2017-10-15 17:32:30 +02:00
commit d316b3d266
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GPG Key ID: 55432DF31CCD4FCD
3 changed files with 129 additions and 25 deletions
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19
src/simplewallet/simplewallet.cpp
View File

@ -3540,12 +3540,18 @@ bool simple_wallet::sign_transfer(const std::vector<std::string> &args_)
fail_msg_writer() << tr("This is a watch only wallet");
return true;
}
if (args_.size() > 1 || (args_.size() == 1 && args_[0] != "export"))
{
fail_msg_writer() << tr("usage: sign_transfer [export]");
return true;
}
if (m_wallet->ask_password() && !get_and_verify_password()) { return true; }
const bool export_raw = args_.size() == 1;
std::vector<tools::wallet2::pending_tx> ptx;
try
{
bool r = m_wallet->sign_tx("unsigned_monero_tx", "signed_monero_tx", ptx, [&](const tools::wallet2::unsigned_tx_set &tx){ return accept_loaded_tx(tx); });
bool r = m_wallet->sign_tx("unsigned_monero_tx", "signed_monero_tx", ptx, [&](const tools::wallet2::unsigned_tx_set &tx){ return accept_loaded_tx(tx); }, export_raw);
if (!r)
{
fail_msg_writer() << tr("Failed to sign transaction");
@ -3566,6 +3572,17 @@ bool simple_wallet::sign_transfer(const std::vector<std::string> &args_)
txids_as_text += epee::string_tools::pod_to_hex(get_transaction_hash(t.tx));
}
success_msg_writer(true) << tr("Transaction successfully signed to file ") << "signed_monero_tx" << ", txid " << txids_as_text;
if (export_raw)
{
std::string rawfiles_as_text;
for (size_t i = 0; i < ptx.size(); ++i)
{
if (i > 0)
rawfiles_as_text += ", ";
rawfiles_as_text += "signed_monero_tx_raw" + (ptx.size() == 1 ? "" : ("_" + std::to_string(i)));
}
success_msg_writer(true) << tr("Transaction raw hex data exported to ") << rawfiles_as_text;
}
return true;
}
//----------------------------------------------------------------------------------------------------

107
src/wallet/wallet2.cpp
View File

@ -81,8 +81,8 @@ using namespace cryptonote;
// arbitrary, used to generate different hashes from the same input
#define CHACHA8_KEY_TAIL 0x8c
#define UNSIGNED_TX_PREFIX "Monero unsigned tx set\003"
#define SIGNED_TX_PREFIX "Monero signed tx set\003"
#define UNSIGNED_TX_PREFIX "Monero unsigned tx set\004"
#define SIGNED_TX_PREFIX "Monero signed tx set\004"
#define RECENT_OUTPUT_RATIO (0.5) // 50% of outputs are from the recent zone
#define RECENT_OUTPUT_ZONE ((time_t)(1.8 * 86400)) // last 1.8 day makes up the recent zone (taken from monerolink.pdf, Miller et al)
@ -3527,7 +3527,8 @@ bool wallet2::save_tx(const std::vector<pending_tx>& ptx_vector, const std::stri
return false;
}
LOG_PRINT_L2("Saving unsigned tx data: " << oss.str());
return epee::file_io_utils::save_string_to_file(filename, std::string(UNSIGNED_TX_PREFIX) + oss.str());
std::string ciphertext = encrypt_with_view_secret_key(oss.str());
return epee::file_io_utils::save_string_to_file(filename, std::string(UNSIGNED_TX_PREFIX) + ciphertext);
}
//----------------------------------------------------------------------------------------------------
bool wallet2::load_unsigned_tx(const std::string &unsigned_filename, unsigned_tx_set &exported_txs)
@ -3545,13 +3546,17 @@ bool wallet2::load_unsigned_tx(const std::string &unsigned_filename, unsigned_tx
LOG_PRINT_L0("Failed to load from " << unsigned_filename);
return false;
}
const size_t magiclen = strlen(UNSIGNED_TX_PREFIX);
const size_t magiclen = strlen(UNSIGNED_TX_PREFIX) - 1;
if (strncmp(s.c_str(), UNSIGNED_TX_PREFIX, magiclen))
{
LOG_PRINT_L0("Bad magic from " << unsigned_filename);
return false;
}
s = s.substr(magiclen);
const char version = s[0];
s = s.substr(1);
if (version == '\003')
{
try
{
std::istringstream iss(s);
@ -3563,12 +3568,41 @@ bool wallet2::load_unsigned_tx(const std::string &unsigned_filename, unsigned_tx
LOG_PRINT_L0("Failed to parse data from " << unsigned_filename);
return false;
}
}
else if (version == '\004')
{
try
{
s = decrypt_with_view_secret_key(s);
try
{
std::istringstream iss(s);
boost::archive::portable_binary_iarchive ar(iss);
ar >> exported_txs;
}
catch (...)
{
LOG_PRINT_L0("Failed to parse data from " << unsigned_filename);
return false;
}
}
catch (const std::exception &e)
{
LOG_PRINT_L0("Failed to decrypt " << unsigned_filename << ": " << e.what());
return false;
}
}
else
{
LOG_PRINT_L0("Unsupported version in " << unsigned_filename);
return false;
}
LOG_PRINT_L1("Loaded tx unsigned data from binary: " << exported_txs.txes.size() << " transactions");
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &signed_filename, std::vector<wallet2::pending_tx> &txs, std::function<bool(const unsigned_tx_set&)> accept_func)
bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &signed_filename, std::vector<wallet2::pending_tx> &txs, std::function<bool(const unsigned_tx_set&)> accept_func, bool export_raw)
{
unsigned_tx_set exported_txs;
if(!load_unsigned_tx(unsigned_filename, exported_txs))
@ -3579,11 +3613,11 @@ bool wallet2::sign_tx(const std::string &unsigned_filename, const std::string &s
LOG_PRINT_L1("Transactions rejected by callback");
return false;
}
return sign_tx(exported_txs, signed_filename, txs);
return sign_tx(exported_txs, signed_filename, txs, export_raw);
}
//----------------------------------------------------------------------------------------------------
bool wallet2::sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_filename, std::vector<wallet2::pending_tx> &txs)
bool wallet2::sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_filename, std::vector<wallet2::pending_tx> &txs, bool export_raw)
{
import_outputs(exported_txs.transfers);
@ -3658,8 +3692,28 @@ bool wallet2::sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_f
{
return false;
}
LOG_PRINT_L3("Saving signed tx data: " << oss.str());
return epee::file_io_utils::save_string_to_file(signed_filename, std::string(SIGNED_TX_PREFIX) + oss.str());
LOG_PRINT_L3("Saving signed tx data (with encryption): " << oss.str());
std::string ciphertext = encrypt_with_view_secret_key(oss.str());
if (!epee::file_io_utils::save_string_to_file(signed_filename, std::string(SIGNED_TX_PREFIX) + ciphertext))
{
LOG_PRINT_L0("Failed to save file to " << signed_filename);
return false;
}
// export signed raw tx without encryption
if (export_raw)
{
for (size_t i = 0; i < signed_txes.ptx.size(); ++i)
{
std::string tx_as_hex = epee::string_tools::buff_to_hex_nodelimer(tx_to_blob(signed_txes.ptx[i].tx));
std::string raw_filename = signed_filename + "_raw" + (signed_txes.ptx.size() == 1 ? "" : ("_" + std::to_string(i)));
if (!epee::file_io_utils::save_string_to_file(raw_filename, tx_as_hex))
{
LOG_PRINT_L0("Failed to save file to " << raw_filename);
return false;
}
}
}
return true;
}
//----------------------------------------------------------------------------------------------------
bool wallet2::load_tx(const std::string &signed_filename, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set&)> accept_func)
@ -3679,13 +3733,17 @@ bool wallet2::load_tx(const std::string &signed_filename, std::vector<tools::wal
LOG_PRINT_L0("Failed to load from " << signed_filename);
return false;
}
const size_t magiclen = strlen(SIGNED_TX_PREFIX);
const size_t magiclen = strlen(SIGNED_TX_PREFIX) - 1;
if (strncmp(s.c_str(), SIGNED_TX_PREFIX, magiclen))
{
LOG_PRINT_L0("Bad magic from " << signed_filename);
return false;
}
s = s.substr(magiclen);
const char version = s[0];
s = s.substr(1);
if (version == '\003')
{
try
{
std::istringstream iss(s);
@ -3697,6 +3755,35 @@ bool wallet2::load_tx(const std::string &signed_filename, std::vector<tools::wal
LOG_PRINT_L0("Failed to parse data from " << signed_filename);
return false;
}
}
else if (version == '\004')
{
try
{
s = decrypt_with_view_secret_key(s);
try
{
std::istringstream iss(s);
boost::archive::portable_binary_iarchive ar(iss);
ar >> signed_txs;
}
catch (...)
{
LOG_PRINT_L0("Failed to parse decrypted data from " << signed_filename);
return false;
}
}
catch (const std::exception &e)
{
LOG_PRINT_L0("Failed to decrypt " << signed_filename << ": " << e.what());
return false;
}
}
else
{
LOG_PRINT_L0("Unsupported version in " << signed_filename);
return false;
}
LOG_PRINT_L0("Loaded signed tx data from binary: " << signed_txs.ptx.size() << " transactions");
for (auto &ptx: signed_txs.ptx) LOG_PRINT_L0(cryptonote::obj_to_json_str(ptx.tx));

4
src/wallet/wallet2.h
View File

@ -488,9 +488,9 @@ namespace tools
void commit_tx(std::vector<pending_tx>& ptx_vector);
bool save_tx(const std::vector<pending_tx>& ptx_vector, const std::string &filename);
// load unsigned tx from file and sign it. Takes confirmation callback as argument. Used by the cli wallet
bool sign_tx(const std::string &unsigned_filename, const std::string &signed_filename, std::vector<wallet2::pending_tx> &ptx, std::function<bool(const unsigned_tx_set&)> accept_func = NULL);
bool sign_tx(const std::string &unsigned_filename, const std::string &signed_filename, std::vector<wallet2::pending_tx> &ptx, std::function<bool(const unsigned_tx_set&)> accept_func = NULL, bool export_raw = false);
// sign unsigned tx. Takes unsigned_tx_set as argument. Used by GUI
bool sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_filename, std::vector<wallet2::pending_tx> &ptx);
bool sign_tx(unsigned_tx_set &exported_txs, const std::string &signed_filename, std::vector<wallet2::pending_tx> &ptx, bool export_raw = false);
// load unsigned_tx_set from file.
bool load_unsigned_tx(const std::string &unsigned_filename, unsigned_tx_set &exported_txs);
bool load_tx(const std::string &signed_filename, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set&)> accept_func = NULL);