A Survey of Trust Management Models for Cloud Computing

Over the past few years, cloud computing has been widely adopted as a paradigm for large-scale infrastructures. In such a scenario, new security risks arise when different entities or domains share the same group of resources. Involved organizations need to establish some kind of trust relationships, able to define appropriate rules that can control which and how resources and services are going to be shared. The management of trust relationships represents a key challenge in order to meet high security requirements in cloud computing environments. This allows also to boost consumers confidence in cloud services, promoting its adoption. Establishing trust with cloud service providers supports to have confidence, control, reliability, and to avoid commercial issues like lock in. This paper proposes a survey of existing trust management models addressing collaboration agreements in cloud computing scenarios. Main limitations of current approaches are outlined and possible improvements are traced, as well as a future research path

Cloud Trust Management – Issues and Developments

Cloud infrastructure is an evolving technology that offers organizations and enterprises the ability to access various elastic and scalable resources. The cloud provider offers application software that can be implemented by multiple users online. Also, the customer is provided with the capability of creating and deploying custom built applications relevant to the needs of the enterprise. In addition, scalable and elastic massive storage and computing resources is available in the different categories of cloud types. The decision for an organisation or enterprise to migrate and outsource applications to the cloud requires trust. Any customer wanting to adopt the cloud wants to be sure that the cloud provider can be trusted to meet agreed requirements. This study was executed by means of review of some literature available on cloud computing and trust management. The results indicated that users are not able to access services on their own terms, clearly eroding trust. In addition, application of encipherment in trust management was not discussed in details. Criteria for identifying quality cloud providers received less than 30% attention. Mechanisms for auditability and transparency which should have been given over 50% consideration, received less than 20%. This results will be beneficial to cloud service providers, cloud users and researchers alik