A Holistic Trust Management Leasing Algorithm for laaS Cloud

摘要

Trust is an important factor, in the exchange of services among multiple parties for example in cloud environment a large number of users interact in the form of resource provider and resource consumers. The resource consumer requests for computation service from the resource provider which provide service to the resource consumer. In this paper we proposed a trust management architecture that keeps track of past performance of resource provider and resource consumer so that every time the participating entity in a transaction has idea of behavior of other entities. This architecture not relies only on trust value of a resource provider, however it also considers several other parameters viz. activeness, ratio of positive and negative feedback etc. As the trust value of a resource provider is actually the result of user's feedback which declines over time, hence we have also given chance of regret to the resource providers which were proven to be untrusted to convert their "setback to comeback".