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We propose and analyze a 3-tier cloud-cloudlet-device hierarchical trust management protocol called IoT-HiTrust for large-scale IoT systems. Our mobile cloud hierarchical trust management protocol allows an IoT device to report its service experiences and query the trustworthiness of another IoT device for service composition and selection following a simple localized report-and-query paradigm. We...
In this paper we propose a hierarchical cloud architecture for integrated mobility, service, and trust management of service-oriented Internet of Things (IoT) systems. This architecture supports scalability, reconfigurability, fault tolerance, and resiliency against cloud node failure and network disconnection, and can benefit both network operators and cloud service providers. In particular, leveraging...
In military operation or emergency response situations, very frequently a commander will need to assemble and dynamically manage Community of Interest (COI) mobile groups to achieve a critical mission assigned despite failure, disconnection or compromise of COI members. We combine the designs of COI hierarchical management for scalability and reconfigurability with COI dynamic trust management for...
An Internet of Things (IoT) system connects a large amount of tags, sensors, and smart devices often with mobility to facilitate information sharing, enabling a variety of attractive applications. On the one hand, the service oriented architecture (SOA) can provide connectivity and interoperability among heterogeneous IoT devices in the physical network. On the other hand, IoT devices are virtually...
We propose to combine social trust derived from social networks with quality-of-service (QoS) trust derived from communication networks to obtain a composite trust metric as a basis for evaluating trust of mobile nodes in mobile ad hoc network (MANET) environments. We develop a novel model-based approach to identify the best protocol setting under which trust bias is minimized, that is, the peer-to-peer...
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