arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2202.08699cs.CR
收藏

智能合约如何使安全协议受益?

How Do Smart Contracts Benefit Security Protocols?

Rujia Li, Qin Wang, Qi Wang, David Galindo

摘要:

智能合约最近被许多安全协议采用。然而,现有的研究缺乏令人满意的理论支持,合同如何有利于安全协议。本文旨在对基于智能合约(SC)的安全协议进行系统分析,以弥补参数和声明不明确的缺陷。本文首先研究了\textit{state of the art studies},并在定义了语法和假设的基础上建立了智能合约协议的形式化模型。然后,我们将我们的形式化框架应用于两个具体的指令,以探索相应的优点和理想的属性。通过我们的分析,我们抽象出三个通用属性(\textit{non-repudiation, non-equivocation, and non-frameability}),并相应地识别出两种模式。(1)智能合约可以作为一个自治的用户来协助可信第三方(TTP);(2)智能合约可以取代传统的TTP。据我们所知,这是第一个研究提供了深入的讨论SC为基础的安全协议从严格的理论角度。

英文摘要:

Smart contracts have recently been adopted by many security protocols. However, existing studies lack satisfactory theoretical support on how contracts benefit security protocols. This paper aims to give a systematic analysis of smart contract (SC)-based security protocols to fulfill the gap of unclear arguments and statements. We firstly investigate \textit{state of the art studies} and establish a formalized model of smart contract protocols with well-defined syntax and assumptions. Then, we apply our formal framework to two concrete instructions to explore corresponding advantages and desirable properties. Through our analysis, we abstract three generic properties (\textit{non-repudiation, non-equivocation, and non-frameability}) and accordingly identify two patterns. (1) a smart contract can be as an autonomous subscriber to assist the trusted third party (TTP); (2) a smart contract can replace traditional TTP. To the best of our knowledge, this is the first study to provide in-depth discussions of SC-based security protocols from a strictly theoretical perspective.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑