TRUST-CAP: A Trust Model for Cloud-based Applications

Cloud computing provides an opportunity for individuals and organizations to extend their capabilities by offering elastic computing resources. Trust is a major challenge in cloud computing. With trust, cloud users (trustees) can select the best available resources from cloud service providers (trustors) who in turn can evaluate users' behaviors and recommend users to other services. In this paper, we propose a generic TRUST model for Cloud-based Applications (TRUST-CAP) that consists of four components: integrity, access control, availability, and privacy. TRUST-CAP ensures the achievement of security services against common existing attacks including Man-At-The-End (MATE) attacks. In TRUST-CAP, we highlight the required functions that should exist in a trust model for cloud users, service providers, and in-between communication medium. TRUST-CAP can be used for various IoT applications.