Paper 2021/1197
( )-indistinguishable Mixing for Cryptocurrencies
Mingyu Liang, Ioanna Karantaidou, Foteini Baldimtsi, Dov Gordon, and Mayank Varia
Abstract
We propose a new theoretical approach for building anonymous mixing mechanisms for cryptocurrencies. Rather than requiring a fully uniform permutation during mixing, we relax the requirement, insisting only that neighboring permutations are similarly likely. This is defined formally by borrowing from the definition of differential privacy. This relaxed privacy definition allows us to greatly reduce the amount of interaction and computation in the mixing protocol. Our construction achieves
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Proceedings on Privacy Enhancing Technologies 2022 Issue 1
- Keywords
- Anonymous MixingCryptocurrencyDifferential Privacy
- Contact author(s)
-
mliang5 @ gmu edu
ikaranta @ gmu edu
foteini @ gmu edu
gordon @ gmu edu
varia @ bu edu - History
- 2021-09-17: received
- Short URL
- https://ia.cr/2021/1197
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2021/1197, author = {Mingyu Liang and Ioanna Karantaidou and Foteini Baldimtsi and Dov Gordon and Mayank Varia}, title = {($\epsilon,\delta$)-indistinguishable Mixing for Cryptocurrencies}, howpublished = {Cryptology {ePrint} Archive, Paper 2021/1197}, year = {2021}, url = {https://eprint.iacr.org/2021/1197} }