A novel symbolic model for analyzing Internet of Things protocols based on event logic

IF 4.8 2区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

Computers & Security Pub Date : 2025-03-13 DOI:10.1016/j.cose.2025.104440

Zehuan Li , Meihua Xiao , Yangping Xu , Fangping Chen , Huaibin Shao , Sufen Yan

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引用次数: 0

Abstract

The unique characteristics of the Internet of Things (IoT) make IoT protocols more vulnerable to security risks compared to traditional security protocols. Formal methods are widely used to analyze and verify the security properties of IoT protocols, but existing methods often fail to address the special security mechanisms required in the complex IoT network environment. A novel symbolic model based on event logic is proposed to implement the comprehensive analysis of secure IoT protocols. The model enhances the description of message flow and match, while also extending the inference capabilities of equivalence and injectivity. Aiming at the pre-shared key, cookie, raw public key, and certificate authority in the IoT protocols, a proof system of the model is proposed to prove the security properties of these mechanisms. To improve efficiency, the match buffer reduction method is also presented to eliminate the redundant proof steps. Formal analysis and verification of protocols, including DTLS, SRTP, CoAP, and PUF, uncover several attacks that violate security properties. The results reveal that the proposed symbolic model is an effective method for the formal analysis and proof of IoT protocols.

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一种新的基于事件逻辑的物联网协议分析符号模型

与传统安全协议相比，物联网（IoT）的独特特性使得物联网协议更容易受到安全风险的影响。形式化方法被广泛用于分析和验证物联网协议的安全特性，但现有方法往往无法解决复杂物联网网络环境中所需的特殊安全机制。为了实现对安全物联网协议的综合分析，提出了一种基于事件逻辑的符号模型。该模型增强了对消息流和匹配的描述，同时扩展了等价性和注入性的推理能力。针对物联网协议中的预共享密钥、cookie、原始公钥和证书颁发机构，提出了该模型的证明体系来证明这些机制的安全性。为了提高效率，还提出了匹配缓冲缩减法，以消除冗余的证明步骤。对协议（包括DTLS、SRTP、CoAP和PUF）的形式化分析和验证揭示了几种违反安全属性的攻击。结果表明，所提出的符号模型是物联网协议形式化分析和证明的有效方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computers & Security 工程技术-计算机：信息系统

CiteScore

12.40

自引率

7.10%

发文量

365

审稿时长

10.7 months

期刊介绍： Computers & Security is the most respected technical journal in the IT security field. With its high-profile editorial board and informative regular features and columns, the journal is essential reading for IT security professionals around the world. Computers & Security provides you with a unique blend of leading edge research and sound practical management advice. It is aimed at the professional involved with computer security, audit, control and data integrity in all sectors - industry, commerce and academia. Recognized worldwide as THE primary source of reference for applied research and technical expertise it is your first step to fully secure systems.