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Merge pull request #2368

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b0b7e0f0 Spend proof without txkey (stoffu)
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Riccardo Spagni 2017-11-25 19:48:56 +02:00
commit 539f511eb1
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GPG key ID: 55432DF31CCD4FCD
10 changed files with 473 additions and 0 deletions
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87
src/simplewallet/simplewallet.cpp
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@ -931,6 +931,8 @@ simple_wallet::simple_wallet()
m_cmd_binder.set_handler("check_tx_key", boost::bind(&simple_wallet::check_tx_key, this, _1), tr("Check amount going to <address> in <txid>"));
m_cmd_binder.set_handler("get_tx_proof", boost::bind(&simple_wallet::get_tx_proof, this, _1), tr("Generate a signature proving payment/receipt of money to/by <address> in <txid> using the transaction/view secret key"));
m_cmd_binder.set_handler("check_tx_proof", boost::bind(&simple_wallet::check_tx_proof, this, _1), tr("Check tx proof for payment going to <address> in <txid>"));
m_cmd_binder.set_handler("get_spend_proof", boost::bind(&simple_wallet::get_spend_proof, this, _1), tr("Generate a signature proving that you generated <txid> using the spend secret key"));
m_cmd_binder.set_handler("check_spend_proof", boost::bind(&simple_wallet::check_spend_proof, this, _1), tr("Check a signature proving that the signer generated <txid>"));
m_cmd_binder.set_handler("show_transfers", boost::bind(&simple_wallet::show_transfers, this, _1), tr("show_transfers [in|out|pending|failed|pool] [index=<N1>[,<N2>,...]] [<min_height> [<max_height>]] - Show incoming/outgoing transfers within an optional height range"));
m_cmd_binder.set_handler("unspent_outputs", boost::bind(&simple_wallet::unspent_outputs, this, _1), tr("unspent_outputs [index=<N1>[,<N2>,...]] [<min_amount> [<max_amount>]] - Show unspent outputs of a specified address within an optional amount range"));
m_cmd_binder.set_handler("rescan_bc", boost::bind(&simple_wallet::rescan_blockchain, this, _1), tr("Rescan blockchain from scratch"));
@ -4144,6 +4146,91 @@ bool simple_wallet::check_tx_proof(const std::vector<std::string> &args)
return true;
}
//----------------------------------------------------------------------------------------------------
bool simple_wallet::get_spend_proof(const std::vector<std::string> &args)
{
if(args.size() != 1 && args.size() != 2) {
fail_msg_writer() << tr("usage: get_spend_proof <txid> [<message>]");
return true;
}
if (m_wallet->watch_only())
{
fail_msg_writer() << tr("wallet is watch-only and cannot generate the proof");
return true;
}
crypto::hash txid;
if (!epee::string_tools::hex_to_pod(args[0], txid))
{
fail_msg_writer() << tr("failed to parse txid");
return true;
}
if (!try_connect_to_daemon())
{
fail_msg_writer() << tr("failed to connect to the daemon");
return true;
}
if (m_wallet->ask_password() && !get_and_verify_password()) { return true; }
try
{
const std::string sig_str = m_wallet->get_spend_proof(txid, args.size() == 2 ? args[1] : "");
const std::string filename = "monero_spend_proof";
if (epee::file_io_utils::save_string_to_file(filename, sig_str))
success_msg_writer() << tr("signature file saved to: ") << filename;
else
fail_msg_writer() << tr("failed to save signature file");
}
catch (const std::exception &e)
{
fail_msg_writer() << e.what();
}
return true;
}
//----------------------------------------------------------------------------------------------------
bool simple_wallet::check_spend_proof(const std::vector<std::string> &args)
{
if(args.size() != 2 && args.size() != 3) {
fail_msg_writer() << tr("usage: check_spend_proof <txid> <signature_file> [<message>]");
return true;
}
crypto::hash txid;
if (!epee::string_tools::hex_to_pod(args[0], txid))
{
fail_msg_writer() << tr("failed to parse txid");
return true;
}
if (!try_connect_to_daemon())
{
fail_msg_writer() << tr("failed to connect to the daemon");
return true;
}
std::string sig_str;
if (!epee::file_io_utils::load_file_to_string(args[1], sig_str))
{
fail_msg_writer() << tr("failed to load signature file");
return true;
}
try
{
if (m_wallet->check_spend_proof(txid, args.size() == 3 ? args[2] : "", sig_str))
success_msg_writer() << tr("Good signature");
else
fail_msg_writer() << tr("Bad signature");
}
catch (const std::exception& e)
{
fail_msg_writer() << e.what();
}
return true;
}
//----------------------------------------------------------------------------------------------------
static std::string get_human_readable_timestamp(uint64_t ts)
{
char buffer[64];