,
Dániel A. Nagy,
Chris Buckland,
Péter Burcsi
Creative Commons Attribution 3.0 Unported license
Coin mixing is a prevalent privacy-enhancing technology for cryptocurrency users. In this paper, we present MixEth, which is a trustless coin mixing service for Turing-complete blockchains. MixEth does not rely on a trusted setup and is more efficient than any proposed trustless coin tumbler. It requires only 3 on-chain transactions at most per user and 1 off-chain message. It achieves strong notions of anonymity and is able to resist denial-of-service attacks. Furthermore the underlying protocol can also be used to efficiently shuffle ballots, ciphertexts in a trustless and decentralized manner.
@InProceedings{seres_et_al:OASIcs.Tokenomics.2019.13,
author = {Seres, Istv\'{a}n Andr\'{a}s and Nagy, D\'{a}niel A. and Buckland, Chris and Burcsi, P\'{e}ter},
title = {{MixEth: Efficient, Trustless Coin Mixing Service for Ethereum}},
booktitle = {International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2019)},
pages = {13:1--13:20},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-108-5},
ISSN = {2190-6807},
year = {2020},
volume = {71},
editor = {Danos, Vincent and Herlihy, Maurice and Potop-Butucaru, Maria and Prat, Julien and Tucci-Piergiovanni, Sara},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.Tokenomics.2019.13},
URN = {urn:nbn:de:0030-drops-119770},
doi = {10.4230/OASIcs.Tokenomics.2019.13},
annote = {Keywords: Cryptography, Verifiable shuffle, Anonymity, Cryptocurrency, Ethereum, Coin mixer, State Channel}
}