Identity-based wireless sensor network security trust method

Abstract

The invention discloses an identity-based wireless sensor network security trust method. The method firstly loads a trust management structure to each node of the network, and the trust management structure consists of a key management module, a receiving reputation module, a storage reputation module, a reputation Computing module, application selection module, path management module, decision-making module, reputation management module and monitoring module are composed. Based on the trust management structure, by broadcasting query node information between nodes, receiving query response information, updating node reputation, and through identity-based public key encryption and authentication between nodes, a trust communication network is established to realize secure communication of reputation information between nodes . The invention reduces the complexity of reputation calculation in the wireless sensor network, improves the communication security of the trust system of the wireless sensor network, solves the communication problem in the case of multiple hops between the source node and the destination node, and can satisfy large-scale self-organizing network applications.

Description

technical field [0001] The invention relates to the field of wireless sensor network security communication, and trust security management in the wireless sensor network. Specifically, it is a security method for establishing a network trust system based on a public key cryptography system based on network node identities, and realizes secure communication on a trust network. Background technique [0002] In the wireless sensor network, to solve the security problems caused by the limited energy of the nodes, prone to failure and easy to be physically captured by the attacker, relying solely on cryptography is not enough to solve the problem, among many methods to solve communication security , by increasing the trust mechanism of nodes and building a trust network to solve the security of wireless sensor networks has attracted the attention of researchers in the industry. [0003] The document "A Security Framework with Trust Management for Sensor Networks, Security and Pr...

AI Technical Summary

Problems solved by technology

However, this security framework also has some defects: First, the transmission of trust information in nodes does not consider the security and authentication of messages, which leads to the fact that attackers can pretend to be some high-trust nodes to mislead other nodes, or tamper with trust information. As a result, even if there is a trust management mechanism, the problem of network security cannot be completely solved.

Secondly, the initialization process of trust is not carried out, which leads to poor operability of the network and is not suitable for actual network applications

Finally, the security framework itself has flaws and deficiencies in its functions. It does not consider the influence of the characteristics of the sensor nodes on trust and the problem of re-updating according to the communication situation, which makes the designed framework structure not perfect.

In addition, there is no multi-hop operation and solution, which is difficult to meet the needs of large-scale self-organizing network applications

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