Divakarla, U.Chandra Sekaran, K.2026-02-052015Lecture Notes in Electrical Engineering, 2015, 312, , pp. 335-34118761100https://doi.org/10.1007/978-3-319-06764-3_41https://idr.nitk.ac.in/handle/123456789/26425Cloud 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. In a nut shell all the entities in cloud and cloud computing environment should be trusted by each other and the entities that have communication should be trusted by each other. This paper throws light on different Trust Models developed and their drawback with respect to resource security. A strong Trust Model is recommended to enhance the security of the resources in Cloud. © Springer International Publishing Switzerland 2015.Cloud computing environmentsCloud service providersCloud technologiesCompetitive environmentEmerging technologiesResource utilizationsTrust aspectsTrust modelsDigital storage