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Merge pull request #1415

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6c44f5c6 wallet: send 0 change to a random address where necessary with rct (moneromooo-monero)
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Riccardo Spagni 2016-12-08 23:44:40 +02:00
commit 8e1a8c6adc
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GPG key ID: 55432DF31CCD4FCD
1 changed files with 13 additions and 3 deletions
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16
src/wallet/wallet2.cpp
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@ -3744,12 +3744,22 @@ void wallet2::transfer_selected_rct(std::vector<cryptonote::tx_destination_entry
// we still keep a copy, since we want to keep dsts free of change for user feedback purposes // we still keep a copy, since we want to keep dsts free of change for user feedback purposes
std::vector<cryptonote::tx_destination_entry> splitted_dsts = dsts; std::vector<cryptonote::tx_destination_entry> splitted_dsts = dsts;
cryptonote::tx_destination_entry change_dts = AUTO_VAL_INIT(change_dts); cryptonote::tx_destination_entry change_dts = AUTO_VAL_INIT(change_dts);
if (needed_money < found_money) change_dts.amount = found_money - needed_money;
if (change_dts.amount == 0)
{
// If the change is 0, send it to a random address, to avoid confusing
// the sender with a 0 amount output. We send a 0 amount in order to avoid
// letting the destination be able to work out which of the inputs is the
// real one in our rings
cryptonote::account_base dummy;
dummy.generate();
change_dts.addr = dummy.get_keys().m_account_address;
}
else
{ {
change_dts.addr = m_account.get_keys().m_account_address; change_dts.addr = m_account.get_keys().m_account_address;
change_dts.amount = found_money - needed_money;
splitted_dsts.push_back(change_dts);
} }
splitted_dsts.push_back(change_dts);
crypto::secret_key tx_key; crypto::secret_key tx_key;
bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sources, splitted_dsts, extra, tx, unlock_time, tx_key, true); bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), sources, splitted_dsts, extra, tx, unlock_time, tx_key, true);