Collaborative Deanonymization

• URL: http://arxiv.org/abs/2005.03535v2
• Date: Fri, 26 Feb 2021 10:52:35 GMT
• Title: Collaborative Deanonymization
• Authors: Patrik Keller, Martin Florian, Rainer B\"ohme
• Abstract summary: We propose protocols to resolve the tension between anonymity and accountability in a peer-to-peer manner. We illustrate how the protocols could apply to Monero rings and CoinJoin transactions in Bitcoin.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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.

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