Cloud is the recent emerging technology in all aspects. The basic concern with the usage of this Cloud Technology is security. Security poses a major drawback with data storage, resource utilization, virtualization, etc. In the highly competitive environment the assurances are insufficient for the customers to identify the trust worthy cloud service providers. As a result all the entities in cloud and cloud computing environment should be trusted by each other and the entities that have communication should have valid trust on each other. Trust being the profound component in any network has attracted many researchers for research in various ways. The models developed so far are platform dependent and are not valid for heterogeneous platforms. An efficient model which can be ported on any platform is the current research trend in the research world. Our model is platform independent and also helps in calculating trust while migrating to another platform. The result shows that the proposed model is much more efficient in terms of computation time.