As blockchain technology continues to transform the realm of digital transactions, scalability has emerged as a critical issue. This challenge has spurred the creation of innovative solutions, particularly Layer 2 scalability techniques like rollups. Among these, ZK-Rollups are notable for employing Zero-Knowledge Proofs to facilitate prompt on-chain transaction verification, thereby improving scalability and efficiency without sacrificing security. Nevertheless, the intrinsic complexity of ZK-Rollups has hindered an exhaustive evaluation of their efficiency, economic impact, and performance. This paper offers a theoretical and empirical examination aimed at comprehending and evaluating ZK-Rollups, with particular attention to ZK-EVMs. We conduct a qualitative analysis to break down the costs linked to ZK-Rollups and scrutinize the design choices of well-known implementations. Confronting the inherent difficulties in benchmarking such intricate systems, we introduce a systematic methodology for their assessment, applying our method to two prominent ZK-Rollups: Polygon zkEVM and zkSync Era. Our research provides initial findings that illuminate trade-offs and areas for enhancement in ZK-Rollup implementations, delivering valuable insights for future research, development, and deployment of these systems.
@InProceedings{chaliasos_et_al:LIPIcs.AFT.2024.6, author = {Chaliasos, Stefanos and Reif, Itamar and Torralba-Agell, Adri\`{a} and Ernstberger, Jens and Kattis, Assimakis and Livshits, Benjamin}, title = {{Analyzing and Benchmarking ZK-Rollups}}, booktitle = {6th Conference on Advances in Financial Technologies (AFT 2024)}, pages = {6:1--6:24}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-345-4}, ISSN = {1868-8969}, year = {2024}, volume = {316}, editor = {B\"{o}hme, Rainer and Kiffer, Lucianna}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.AFT.2024.6}, URN = {urn:nbn:de:0030-drops-209420}, doi = {10.4230/LIPIcs.AFT.2024.6}, annote = {Keywords: Zero-Knowledge Proofs, ZK-Rollups, Benchmarking, Blockchain Scalability} }
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