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wallet: add shared ring database

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This maps key images to rings, so that different forks can reuse
the rings by key image. This avoids revealing the real inputs like
would happen if two forks spent the same outputs with different
rings. This database is meant to be shared with all Monero forks
which don't bother making a new chain, putting users' privacy at
risk in the process. It is placed in a shared data directory by
default ($HOME/.shared-ringdb on UNIX like systems). You may
use --shared-ringdb-dir to override this location, and should
then do so for all Monero forks for them to share the database.
This commit is contained in:
moneromooo-monero 2018-02-18 10:47:25 +00:00
parent 41f727ce42
commit 5f146873c5
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
8 changed files with 700 additions and 7 deletions
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60
src/simplewallet/simplewallet.cpp
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@ -1294,6 +1294,58 @@ bool simple_wallet::export_raw_multisig(const std::vector<std::string> &args)
return true;
}
bool simple_wallet::print_ring(const std::vector<std::string> &args)
{
crypto::key_image key_image;
if (args.size() != 1)
{
fail_msg_writer() << tr("usage: print_ring <key_image>");
return true;
}
if (!epee::string_tools::hex_to_pod(args[0], key_image))
{
fail_msg_writer() << tr("Invalid key image");
return true;
}
std::vector<uint64_t> ring;
try
{
if (m_wallet->get_ring(m_wallet->get_ring_database(), key_image, ring))
{
std::stringstream str;
for (const auto &x: ring)
str << x << " ";
success_msg_writer() << tr("Ring size ") << std::to_string(ring.size()) << ": " << str.str();
}
else
{
fail_msg_writer() << tr("Key image either not spent, or spent with mixin 0");
}
}
catch (const std::exception &e)
{
fail_msg_writer() << tr("Failed to get key image ring: ") << e.what();
}
return true;
}
bool simple_wallet::save_known_rings(const std::vector<std::string> &args)
{
try
{
LOCK_IDLE_SCOPE();
m_wallet->find_and_save_rings(m_wallet->get_ring_database());
}
catch (const std::exception &e)
{
fail_msg_writer() << tr("Failed to save known rings: ") << e.what();
}
return true;
}
bool simple_wallet::set_always_confirm_transfers(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
{
const auto pwd_container = get_and_verify_password();
@ -1951,6 +2003,14 @@ simple_wallet::simple_wallet()
boost::bind(&simple_wallet::export_raw_multisig, this, _1),
tr("export_raw_multisig_tx <filename>"),
tr("Export a signed multisig transaction to a file"));
m_cmd_binder.set_handler("print_ring",
boost::bind(&simple_wallet::print_ring, this, _1),
tr("print_ring <key_image>"),
tr("Print the ring used to spend a given key image (if the ring size is > 1)"));
m_cmd_binder.set_handler("save_known_rings",
boost::bind(&simple_wallet::save_known_rings, this, _1),
tr("save_known_rings"),
tr("Save known rings to the shared rings database"));
m_cmd_binder.set_handler("help",
boost::bind(&simple_wallet::help, this, _1),
tr("help [<command>]"),