SmartZKCP: Towards Practical Data Exchange Marketplace Against Active Attacks
The trading of data is becoming increasingly important as it holds substantial value. A blockchain-based data marketplace can provide a secure and transparent platform for data exchange. To facilitate this, developing a fair data exchange protocol for digital goods has garnered considerable attention in recent decades. The Zero Knowledge Contingent Payment (ZKCP) protocol enables trustless fair exchanges with the aid of blockchain and zero-knowledge proofs. However, applying this protocol in a practical data marketplace is not trivial.
In this paper, several potential attacks are identified when applying the ZKCP protocol in a practical public data marketplace. To address these issues, we propose SmartZKCP, an enhanced solution that offers improved security measures and increased performance. The protocol is formalized to ensure fairness and secure against potential attacks. Moreover, SmartZKCP offers efficiency optimizations and minimized communication costs. Evaluation results show that SmartZKCP is both practical and efficient, making it applicable in a data exchange marketplace.
Sat 27 JulDisplayed time zone: Beijing, Chongqing, Hong Kong, Urumqi change
13:30 - 15:00 | Session 5 - Application & Solution For BlockchainResearch Track at The ballroom B Chair(s): Jun Zhang Inner Mongolia University | ||
13:30 15mPaper | A Distributed Scalable Cross-chain State Channel Scheme Based on Recursive State Synchronization Research Track Xinyu Liang Wuhan University, Ruiying Du Wuhan University, Jing Chen Wuhan University, Yu Zhang Beijing Infosec Technologies Co., Ltd, Meng Jia Wuhan University, Shuangxi Cao China Satellite Network Innovation Co., Ltd, Yufeng Wei China Satellite Network Innovation Co., Ltd, Shixiong Yao Central China Normal University | ||
13:45 15mPaper | SmartZKCP: Towards Practical Data Exchange Marketplace Against Active Attacks Research Track Xuanming Liu Zhejiang University, Jiawen Zhang Zhejiang University, Yinghao Wang Zhejiang University, Xinpeng Yang Zhejiang University, Xiaohu Yang Zhejiang University | ||
14:00 15mPaper | Governance and deployment of multichain decentralised autonomous organizations: Lessons learned from extending Uniswap v3 across chains. Research Track Jakob Svennevik Notland NTNU, Jingyue Li Norwegian University of Science and Technology (NTNU), Mariusz Nowostawski Norwegian University of Science and Technology | ||
14:15 15mPaper | Backtesting Framework for Concentrated Liquidity Market Makers on Uniswap V3 Decentralized Exchange Research Track Andrey Urusov Vega Institute Foundation, Rostislav Berezovskiy Vega Institute Foundation, Yury Yanovich Skolkovo Institute of Science and Technology; Faculty of Computer Science, HSE University | ||
14:30 15mPaper | Atomic and Privacy-Preserving Cyclic Cross-Chain Protocol Based on Chameleon Hash Function Research Track Mengyan Li Central University of Finance and Economics, Maoning Wang Central University of Finance and Economics, Meijiao Duan Central University of Finance and Economics | ||
14:45 15mPaper | A Privacy-Preserving DAO Model Using NFT Authentication for the Punishment not Reward Blockchain Architecture Research Track | ||