PayMo: Verifiable Timed Linkable Ring Signatures for Scalable Payments for Monero
2023-06-24, 14:10–14:30 (Europe/Prague), Studio 1 (La Fabrika)

Payment Channels (PC) and Payment Channel Networks (PCN) have become popular solutions for addressing scalability issues in major cryptocurrencies like Bitcoin, Ethereum, and Ripple. These solutions, also known as layer 2 or off-chain solutions, are widely used to scale payment systems.

In this talk, I will present PayMo, this first payment channel protocol is fully compatible with Monero’s transaction scheme and can be readily used to perform off-chain payments. Notably, transactions in PayMo are identical to standard transactions in Monero, therefore not hampering the coins’ fungibility. Using PayMo, we also construct a provably secure and scriptless atomic-swap protocol compatible with the transaction scheme of Monero: One can now securely swap a token of Monero with a token of several major cryptocurrencies such as Bitcoin, Ethereum, Ripple, Cardano, etc.

See also: Verifiable Time Linkable

I am a Full Professor of Applied Cryptography at Friedrich-Alexander-University in Erlangen-Nürnberg. Previously, I was a tenured professor at Saarland University. I completed a postdoc at the University of Maryland, USA under Jonathan Katz, my Ph.D. at the Technical University of Darmstadt under Marc Fischlin, and my Diploma (Master’s equivalent) at the Technical University of Braunschweig.