Wireless sensor network key distribution and management protocol based on multiple hash chains

Abstract

The invention provides a wireless sensor network key distribution and management protocol based on multiple hash chains. The protocol can overcome design defects of a traditional wireless sensor network key management algorithm, and provides confirmed safety for a network through pair-wise keys established by multiple hash chains while obviously reducing storage overhead. Based on factorization of polynomials, safe distribution and updating of cluster keys can be completed through primary broadcasting, and the problems which comprise low capability of physical capture attack resistance and large overheads for cluster key distribution and communication updating, and are generated on the basis of a clustering safety algorithm, are solved.

Description

technical field [0001] The invention relates to a dual key establishment and distribution protocol in a wireless sensor network, which can be applied to the fields of ad hoc network, wireless sensor network, wireless communication and the like. Background technique [0002] Wireless sensor network (WSN) is dedicated to the monitoring and information collection of a specific environment. It has two characteristics: the communication medium is open and it is deployed in an unattended environment. The insecurity of WSN communication is doomed, and the special application environment of WSN network determines the importance of its secure communication. So far, there are many research theories and results on the security algorithm of WSN network, especially the key establishment and distribution algorithm. Key management, SPINS, etc. Some are based on polynomial technology, such as the establishment of dual keys in distributed sensor networks. But no matter which method, becau...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the design of traditional wireless sensor network key management algorithms, and the node-wise key (pair-wise key) established by multiple hash chains can provide deterministic security for the network while significantly reducing storage overhead. Security: based on polynomial factorization, one broadcast to complete the secure distribution and update of cluster keys, solving the problems of low ability to resist capture attacks and high communication overhead of cluster key distribution and update based on the cluster security algorithm

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