Evaluating Mechanism Trust Model Based on Behavior Result under Cloud Computing

An evaluating mechanism-based cloud computing trust model is raised to aim at the issue of how the cloud service user selects credible cloud service supplier. The trust model constitutes an evaluating system about service behavior between cloud service supplier and cloud service user. After formalized evaluation about entity achieved, certain algorithm would be used to get the trust and trust value of an entity to another one, and the research about the above trust value could be used to solve the issue of trust between cloud service user and cloud service supplier. Secondary, in order to settle the problem, e.g. the unreal and vicious entity which is trusted in the trust model, a trust management measure is formed based on curve fitting. The measure could help determine truth degree and accuracy degree of trust value after dynamic analysis and judgment and analyze the behavior intent of entity for the purpose to assure accuracy and stability of trust model. The simulation result shows that the evaluation result of the model is more close to real credibility and cloud service supplier, at the same time, could effective resist the attack from the vicious cloud service user, assure safety of cloud service environment and help improve cloud service quality.