On the Anonymity of Peer-To-Peer Network Anonymity Schemes Used by Cryptocurrencies

“For instance, our analysis reveals that in the widely deployed Lightning Network, with 1% strategically chosen colluding nodes, the adversary can uniquely determine the originator for ≈ 50% of the total transactions in the network. In Dandelion, an adversary that controls 15% of the nodes has, on average, uncertainty among only 8 possible originators. Moreover, we observe that due to the way Dandelion and Dandelion++ are

designed, increasing the network size does not correspond to an increase in the anonymity set of potential originators. Alarmingly, our longitudinal analysis of the Lightning Network reveals rather an inverse trend—with the growth of the network, the overall anonymity decreases.”

The authors also wrote a section on improvements that could be made to dandelion, which seems helpful

The link doesn't work

xmrack: I read the paper in December. My comments: libera.monerologs.net/monero-research-lab/20221207#c174465

One of the paper's authors responded: libera.monerologs.net/monero-research-lab/20230109

The first author is going to present it at MoneroKon: cfp.monerokon.com/2023/talk/HXFUVK