基于进程演算和知识推理的安全协议形式化分析
Formal Analysis of Security Protocol Based on Process Calculus and Knowledge Derivation
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摘要: 安全协议的形式化分析是当前安全协议研究的热点，如何扩充现在已经成熟的理论和方法去研究更多的安全性质，使同一系统中各种安全性质在统一的框架下进行分析和验证是一个亟待解决的问题.进程演算是一强有力的并发系统建模工具，而结合知识推理可以弥补进程演算固有的缺乏数据结构支持的特点，以此提出了一个安全协议形式化分析的一般模型.基于此模型，形式化地定义了一些安全性质，给出了一个实例研究，并指出了进一步完善此模型的研究方向.Abstract: Formal analysis of security protocols is becoming more and more important. It is desiderated to expand the existing methods to study more security properties and to form a unified framework to analyze various security properties. Process calculus is a powerful tool for modeling concurrent systems. The existing process calculi, however, are not very convenient to support data structure. In this paper, a generic model is proposed for the analysis of security protocols based on a process calculus with knowledge derivation. The model facilitates the formal definitions of some well known security properties. Using this model the Needham-Schroeder public-key protocol is analyzed as a case study. Some future directions are pointed out.
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Keywords:
- process calculus /
- knowledge derivation /
- security protocol /
- formal analysis
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