Collaborative Deanonymization
Cryptography and Security
2021-03-01 v2 Computers and Society
Abstract
Privacy-seeking cryptocurrency users rely on anonymization techniques like CoinJoin and ring transactions. By using such technologies benign users potentially provide anonymity to bad actors. We propose overlay protocols to resolve the tension between anonymity and accountability in a peer-to-peer manner. Cryptocurrencies can adopt this approach to enable prosecution of publicly recognized crimes. We illustrate how the protocols could apply to Monero rings and CoinJoin transactions in Bitcoin.
Cite
@article{arxiv.2005.03535,
title = {Collaborative Deanonymization},
author = {Patrik Keller and Martin Florian and Rainer Böhme},
journal= {arXiv preprint arXiv:2005.03535},
year = {2021}
}