A Monero contributor has opened a pull request, number 11743, to change how nodes relay transactions received through Tor or I2P. The patch addresses a privacy weakness that could allow an observer to link a transaction to its origin anonymity network by analyzing the timing of its broadcast. Under the proposed method, nodes would ignore Tor and I2P transactions received on outgoing connections, apply a random delay to accepted transactions, and then use Monero’s Dandelion++ relay protocol. The project is also considering preventing senders from requesting immediate broadcast when using Tor or I2P, so that the delay cannot be bypassed. The pull request, opened on November 13, remains under review, and its inclusion in a future release has not yet been confirmed.
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