A Trust Based Approach for Increasing Security in Cloud Computing Infrastructure

Users of cloud computing do not have currently appropriate tools for their verification of confidentiality, privacy policy, computing accuracy, and data integrity. To deal with this problem, a new approach called Trusted Cloud Computing Infrastructure is proposed inspired by Trusted Cloud Computing Platform. Through presenting a User Trusted Entity (UTE) the proposed approach is supposed to make cloud computing infrastructures reliable in order to enable infrastructure service developers to provide a closed execution environment. One advantage of the proposed UTE is that managers of Infrastructure as a Service (IaaS) systems have no privilege within UTE. Therefore cloud computing managers cannot interfere in Trusted Coordinator functionality. It has been assumed UTE should be kept by a third agent without any incentives to collude with IaaS services and highly trusted to ensure confidential execution of guest virtual machines. In addition, UTE allows users to authenticate IaaS server and determine the security of cloud service before startup of virtual machine.