Research On Trust Evaluation And Selection Of Resources In Cloud Computiong

Cloud computing is a new paradigm in which dynamically scalable virtualized computing resources are provided as a service over the Internet.The emergence and application of cloud computing can help users access to various computing resources and services more conveniently. However, it also brings forth many security challenges. For critical business application and more sensitive information, cloud resources must be selected based on high level of trustworthiness.This paper presents a trust model to evaluate cloud resources in order to help cloud users select the most reliable resources. This model collects and analyzes reliability based on historical information of servers in a Cloud data center. It evaluates the trust of each resource from two aspects:objective trust and subjective trust. The objective trust evaluation uses the model of RTE-QoS. The recommended trust of subjective trust evaluation including the result of the novel model of RTE-UAS and the Authority users’ recommended trust. Then this model prepares the best available resources for each service request in advance, providing the best resources to users. We also carried out experiments for reliability analysis. As a result, using our trust model, cloud providers can provide highly trusted resources and services to many users and also utilize their resources efficiently.