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.