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| author | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2017-07-25 18:42:55 +0100 |
|---|---|---|
| committer | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2017-07-25 18:57:57 +0100 |
| commit | 340feedee22f8407884b1a98ae37219541ab0eb2 (patch) | |
| tree | cc65f6098c077a9c553a1332c757f3c2cd78aca3 | |
| parent | ab594cfee94dff87bb7039724563f6177a892b8b (diff) | |
| download | monzero-core-340feedee22f8407884b1a98ae37219541ab0eb2.tar.gz monzero-core-340feedee22f8407884b1a98ae37219541ab0eb2.tar.xz monzero-core-340feedee22f8407884b1a98ae37219541ab0eb2.zip | |
core: randomly shuffle outputs
They used to be sorted by amount, which was fine before rct,
but is now suboptimal, since amounts are not known anymore.
In particular, it would give a recipient knowledge of whether
change was higher or lower than the amount received.
| -rw-r--r-- | src/cryptonote_core/cryptonote_tx_utils.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cryptonote_core/cryptonote_tx_utils.cpp b/src/cryptonote_core/cryptonote_tx_utils.cpp index 26d5fb767..abb4b31ec 100644 --- a/src/cryptonote_core/cryptonote_tx_utils.cpp +++ b/src/cryptonote_core/cryptonote_tx_utils.cpp @@ -265,7 +265,7 @@ namespace cryptonote // "Shuffle" outs std::vector<tx_destination_entry> shuffled_dsts(destinations); - std::sort(shuffled_dsts.begin(), shuffled_dsts.end(), [](const tx_destination_entry& de1, const tx_destination_entry& de2) { return de1.amount < de2.amount; } ); + std::random_shuffle(shuffled_dsts.begin(), shuffled_dsts.end(), [](int i) { return crypto::rand<int>() % i; }); uint64_t summary_outs_money = 0; //fill outputs |