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wallet: add command and RPC to sign/verify data

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Signing is done using the spend key, since the view key may
be shared. This could be extended later, to let the user choose
which key (even a per tx key).
simplewallet's sign/verify API uses a file. The RPC uses a
string (simplewallet can't easily do strings since commands
receive a tokenized set of arguments).
This commit is contained in:
moneromooo-monero
2016-04-23 21:46:48 +01:00
parent 18dd507024
commit 89d9f382a0
8 changed files with 195 additions and 2 deletions
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67
src/simplewallet/simplewallet.cpp
View File

@@ -658,6 +658,8 @@ simple_wallet::simple_wallet()
m_cmd_binder.set_handler("set_tx_note", boost::bind(&simple_wallet::set_tx_note, this, _1), tr("Set an arbitrary string note for a txid"));
m_cmd_binder.set_handler("get_tx_note", boost::bind(&simple_wallet::get_tx_note, this, _1), tr("Get a string note for a txid"));
m_cmd_binder.set_handler("status", boost::bind(&simple_wallet::status, this, _1), tr("Show wallet status information"));
m_cmd_binder.set_handler("sign", boost::bind(&simple_wallet::sign, this, _1), tr("Sign the contents of a file"));
m_cmd_binder.set_handler("verify", boost::bind(&simple_wallet::verify, this, _1), tr("Verify a signature on the contents of a file"));
m_cmd_binder.set_handler("help", boost::bind(&simple_wallet::help, this, _1), tr("Show this help"));
}
//----------------------------------------------------------------------------------------------------
@@ -3368,6 +3370,71 @@ bool simple_wallet::status(const std::vector<std::string> &args)
return true;
}
//----------------------------------------------------------------------------------------------------
bool simple_wallet::sign(const std::vector<std::string> &args)
{
if (args.size() != 1)
{
fail_msg_writer() << tr("usage: sign <filename>");
return true;
}
if (m_wallet->watch_only())
{
fail_msg_writer() << tr("wallet is watch-only and cannot sign");
return true;
}
std::string filename = args[0];
std::string data;
bool r = epee::file_io_utils::load_file_to_string(filename, data);
if (!r)
{
fail_msg_writer() << tr("failed to read file ") << filename;
return true;
}
std::string signature = m_wallet->sign(data);
success_msg_writer() << signature;
return true;
}
//----------------------------------------------------------------------------------------------------
bool simple_wallet::verify(const std::vector<std::string> &args)
{
if (args.size() != 3)
{
fail_msg_writer() << tr("usage: verify <filename> <address> <signature>");
return true;
}
std::string filename = args[0];
std::string address_string = args[1];
std::string signature= args[2];
std::string data;
bool r = epee::file_io_utils::load_file_to_string(filename, data);
if (!r)
{
fail_msg_writer() << tr("failed to read file ") << filename;
return true;
}
cryptonote::account_public_address address;
bool has_payment_id;
crypto::hash8 payment_id;
if(!get_account_integrated_address_from_str(address, has_payment_id, payment_id, m_wallet->testnet(), address_string))
{
fail_msg_writer() << tr("failed to parse address");
return true;
}
r = m_wallet->verify(data, address, signature);
if (!r)
{
fail_msg_writer() << tr("Bad signature from ") << address_string;
}
else
{
success_msg_writer() << tr("Good signature from ") << address_string;
}
return true;
}
//----------------------------------------------------------------------------------------------------
bool simple_wallet::process_command(const std::vector<std::string> &args)
{
return m_cmd_binder.process_command_vec(args);