Security system of wireless industrial control network, and method for implementing security policy

Abstract

The technical scheme of this invention is that dividing the wireless industry control net (WICN) into three net sections: a enterprise managing layer, a process controlling layer and field equipment layer. According to the hiberarchy of WICN, a WICN safety managing system is built. This system defines the built WICN into 4 safety levels. According to the access control list in the sever pool of the key administration center KDC, via the mechanism of key managing and the equipment verifying basis on KDC, the wireless safety gateway, the wireless net safety application managing entity and the wireless safety managing info database, different safety precautions are applied on the various layers and various safety levels of nets. This invention suits the industry field control to solve effectively the safety problems of resource and data comm. within the WICN and ensures the normal system running.

Description

technical field [0001] The invention relates to an industrial field control technology, in particular to a security system structure of a wireless industrial control network. Background technique [0002] As a new direction in the information field, wireless communication technology is also the result of the academic intersection of emerging disciplines and traditional disciplines, and has attracted extensive attention from academia and industry. [0003] Compared with traditional networks, wireless industrial control networks have the characteristics of very limited node energy, computing power, storage space, network bandwidth and communication capabilities, large network scale, and dynamic topology changes. These characteristics make it more vulnerable to malicious or non-malicious threats such as intrusion, destruction or replay, such as viruses, information leakage and tampering, system unusability, etc., and also make it impossible for various security services in trad...

AI Technical Summary

Problems solved by technology

(A lightweight IPsec adaptation for small devices in IP-based mobile networks, This paper appears in: Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference Publication Date: 20-22 Feb. 2006 Volume: 1 INSPEC AccessionNumber: 9053500 but common), Focusing on the theoretical analysis of wireless security, most of them consider security from the perspective of wireless mobile communication, lack of consideration from the overall characteristics of industrial control systems, and have not yet formed a complete security system architecture for industrial wireless communication

Images