Liang, M., Karantaidou, I., Baldimtsi, F., Gordon, D. S., & Varia, M. (2022). (∈, δ)-Indistinguishable Mixing for Cryptocurrencies, Proceedings on Privacy Enhancing Technologies, 2022(1), 49–74. |
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In Appendix B, we discuss an instantiation of our generic mixing construction built upon any anony- mous transaction functionality, such as Monero’s ring signatures and confidential transactions. For our instan- tiation, we modify the ring signature content in order to support loop-payments, i.e. the ability for an input address to transfer amounts back to itself. Then, we de- scribe the ring’s structure as predefined by the parent buckets in the previous level and the output address for both real and noisy transactions, and we claim full in- distinguishability between them. We present a variant of our construction in Section 7 that is compatible with current signature and fee requirements of Monero. |