[Document] A trust based defense system model under cloud computing

A trust based defense system model in cloud computing

Computer Application vol.31 No.6 June 2011

Zhou Xi, Yu Yu

(School of Information Science and engineering, Xinjiang University, Urumqi 830046)
(zhouqian@ Xju.) Edu． cn)

Absrtact: Due to the dynamic nature and openness of cloud computing, malicious attacks occur frequently in cloud environment, in order to ensure the security of cloud computing and the idea of trusted cloud, a defense system model based on trust in cloud computing is proposed. The model can obtain the user's behavior evidence and standardize it by real-time monitoring. A new user Behavior Trust evaluation method based on fuzzy analytic hierarchy Process (FAHP) is proposed, which gradually determines the weights of each behavioral evidence and realizes the scientific quantitative evaluation of behavioral Trust. Using a variety of detection engines to detect suspicious files and comprehensive decision-making for the cloud users to provide maximum security defense. The experimental results show that the system model can effectively eliminate the bad user's malicious attack behavior, reduce the loss caused by the virus, and reach the goal of the cloud and the client's two-way defense.

Key words: cloud security; Trusted cloud; Trust; evidence of conduct; Fuzzy analytic hierarchy process; Multi-detection engine

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