Quantization and Assessment the Effectiveness of Cloud Trusted Mechanism

• 1、School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876

Abstract：With the advent of the cloud computing era, the problem of cloud trustiness takes more and more attention, and many models and mechanisms are proposed to audit or attest the trustiness of cloud and virtual machine. However, most research mainly concentrates in the design and implementation of model and the mechanism and takes less attention to assess the validity of the models and the mechanisms. In this paper, a novel method is proposed to quantify and assess the validity of trust models by calculating the attack damage reduced and the performance cost introduced by the trust mechanism. Then, for the periodic verification mechanism, the best detection cycle prediction mechanism is proposed to solve the issue of how to select the best detection cycle. The simulation experiments demonstrate that this method can quantify accuratly the effectiveness of turst mechanisms and predict the optimum detection cycle to reduce performance cost.

Keywords： Computer Application Cloud Computing Trust Effectiveness Quantify Assess