SoK:Privacy-preserving smart contract  

作　　者：Huayi Qi Minghui Xu Dongxiao Yu Xiuzhen Cheng 

机构地区：[1]School of Computer Science and Technology,Shandong University,Qingdao 266237,China

出　　处：《High-Confidence Computing》2024年第1期81-91,共11页高置信计算（英文）

基　　金：supported by the National Key R&D Program of China(2022YFB4501000);the National Natural Science Foundation of China(62232010 and 62302266);Shandong Science Fund for Excellent Young Scholars,China(2023HWYQ-008);Shandong Science Fund for Key Fundamental Research Project,China(ZR2022ZD02);the Fundamental Research Funds for the Central Universities,China.

摘　　要：The privacy concern in smart contract applications continues to grow,leading to the proposal of various schemes aimed at developing comprehensive and universally applicable privacy-preserving smart contract(PPSC)schemes.However,the existing research in this area is fragmented and lacks a comprehensive system overview.This paper aims to bridge the existing research gap on PPSC schemes by systematizing previous studies in this field.The primary focus is on two categories:PPSC schemes based on cryptographic tools like zero-knowledge proofs,as well as schemes based on trusted execution environments.In doing so,we aim to provide a condensed summary of the different approaches taken in constructing PPSC schemes.Additionally,we also offer a comparative analysis of these approaches,highlighting the similarities and differences between them.Furthermore,we shed light on the challenges that developers face when designing and implementing PPSC schemes.Finally,we delve into potential future directions for improving and advancing these schemes,discussing possible avenues for further research and development.

关 键 词：PRIVACY Smart contract Zero-knowledge proof Trusted execution environment Blockchain 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]