Research of Trusted Network Architecture in Wireless sensor Networks

Recently, there are many trust management solutions are proposed for wireless sensor networks. Current decentralized trust-management research focuses mainly on trust models and algorithms, whereas trust evaluation isn’t related with certainty specific application. But, in WSNs the trust management solutions should adapt to different application scenarios. In addition, potential merits of hardware-based security mechanisms to further secure application exposure have not been considered so far. Fundamentally, the secure interaction among nodes also requires to be guaranteed by hardware-based security mechanisms besides software-based ones in WSNs. This paper presents a new trust management solution towards establishing a security interacting environment for wireless sensor networks. In the solution, a trusted architecture is proposed, which is used to deal with the trust and security problem for wireless sensor networks. The proposed architecture for developers can be utilized as a foundation for their own secure wireless applications. This unique feature of the proposed architecture is that it combines software resource level security features offered by trust module and rule-engine module, with the hardware-based security mechanisms offered by Trusted Computing Platform (TCP). TCP is a platform which can be trusted by local and remote entities. TCP builds its promise of a trusted platform on the basis of some hardware – the Trusted Platform Module (TPM). Based on analysis, we conclude that the architecture is a promising solution that can overcome many security challenges in wireless sensor networks, thus realize secure interaction among mobile sensor nodes.