4 papers
Calyx: Privacy-Preserving Multi-Token Optimistic-Rollup Protocol
Dominik Apel, Zeta Avarikioti, Matteo Maffei +1
Rollup protocols have recently received significant attention as a promising class of Layer 2 (L2) scalability solutions. By utilizing the Layer 1 (L1) blockchain solely as a bulle…
A Security Framework for General Blockchain Layer 2 Protocols
Zeta Avarikioti, Matteo Maffei, Yuheng Wang
Layer 2 (L2) protocols, payment channels, sidechains, and rollups, are central to blockchain scalability, enabling off-chain execution while preserving on-chain security. Despite g…
Thunderdome: Timelock-Free Rationally-Secure Virtual Channels
Zeta Avarikioti, Yuheng Wang, Yuyi Wang
Payment channel networks (PCNs) offer a promising solution to address the limited transaction throughput of deployed blockchains. However, several attacks have recently been propos…
Robust and Scalable Renaming with Subquadratic Bits
Sirui Bai, Xinyu Fu, Yuheng Wang +2
In the renaming problem, a set of nodes, each with a unique identity from a large namespace , needs to obtain new unique identities in a smaller namespace . A renamin…