Trust Model Research in Cloud Computing Environment

The trust evaluation research in cloud computing has been involved in the node security communication, security storage, resource allocation and many other aspects.As an effective replacement oftraditional networksecurity,trust mechanismhas effectively solved the security problems of distributed computing, such as grid computing, pervasive computing and adhoc networks. The classical trust model and research status of trust model in cloud computing have been studied.Considering the factors such as time, a trust model based on Evidence Theory has been proposed in this paper. This model limits the qualification of the entity’s recommendation trust, proposes a dynamic allocation method of trust weights and gives thecalculation method of trust value.