Dr. Chao Wang Profile

Dr. Chao Wang

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Proceedings Article | 11 October 2023 Paper

A secure and lightweight implementation scheme for Internet of Things device management based on ZUC algorithm

Hao Tian, Chao Wang

Proceedings Volume 12800, 1280020 (2023) https://doi.org/10.1117/12.3004052

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With the widespread application of the Internet of Things, millions of sensors, actuators, or embedded electronic devices are interconnected through the Internet. Monitoring a large number of IoT devices is a huge challenge, especially when sensor nodes are limited (such as limited CPU, memory, and batteries). The IoT device management protocol has become an important research field. However, currently, management protocols designed for the Internet of Things, such as CoAP and MQTT, do not provide security support. SNMP is a widely used protocol for monitoring systems, and its v3 version provides comprehensive security support. However, SNMPv3 uses complex encryption algorithms and cannot be applied to resource limited IoT devices. In order to address this issue, we propose a secure and lightweight implementation scheme for Internet of Things (IoT) device management based on the ZUC algorithm. This solution utilized the ZUC algorithm as its core and created authentication and encryption protocols in order to provide safe connection and control ofloT devices. We conducted simulation experiments and compared our scheme with the simple network management protocol to confirm its viability. The results show that, while maintaining security, the proposed solution greatly lowers computing and communication overhead, making it suitable for Internet of Things (IoT) scenarios.

Proceedings Article | 12 May 2023 Paper

Research on trusted Modbus/TCP protocol of SCADA system based on digital envelope technology

Chenxue Guo, Yuanbo Cui, Chao Wang

Proceedings Volume 12641, 126410V (2023) https://doi.org/10.1117/12.2679065

KEYWORDS: Data communications, Telecommunications, Symmetric-key encryption, Computer security, Information security, Control systems

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Considering the issues of lack of integrity, authentication and confidentiality of Modbus/TCP protocol broadly utilized in SCADA system, this study suggests a trusted Modbus/TCP protocol based on digital envelope technology on the basis of trusted cryptography module (TCM). To the basic Modbus/TCP protocol, the protocol adds identity authentication sub-protocol and communication sub-protocol. Utilizing the SM2, SM3 and SM4 algorithms provided by TCM, the security of sub-protocol communication procedure and communication information is guaranteed by digital envelope technology and hash calculation. The security of the sub-protocol is verified by the SPAN tool, as well as the time overhead determined by the sub-protocol is tested. Experiments illustrates that the proposed trusted Modbus/TCP protocol can meet the high real-time prerequisites of industrial control systems and various business performance criteria while ensuring integrity, authentication and confidentiality.

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