Providing Trust Enabled Services in Vehicular Cloud Computing

摘要

Cloud Computing, the long-held dream of computing as a utility has the potential to transform (run) every service on a single platform. Today's cloud computing has become the buzzword (i.e. pay as you go) in the computing world. And as extension of cloud technology, cloud services used by vehicles to exchange communications in vehicular ad hoc network. Vehicle Cloud Computing (VCC) is new field of exploration that plans to study vehicle operators (individuals, vehicles, robots and so on.) as they connect and work together to sense nature, prepare the information, proliferate the outcomes and all the more by and large share assets (resources) to exchange communication. During accessing services in cloud, vehicle users are in doubt about not to disclose their personal/route/location information to any malicious entity. Trust is an essential concern for vehicle users during using cloud services in road network. Vehicles used location based services (during their journey) to find the nearest location, point of interest etc. Actually, the target of VANET is to achieve higher level of safety (i.e. to provide secure, trusted and privacy preserved communication) in road network. This work comes with a proposal to overcome raised problems i.e. an authentication based trust mechanism or trust based on authentication (TBAT) establishment technique among vehicle users in road network. This work computes the trust degree of each vehicle user, available or using location services in cloud. Trust degree of each user is computed by based on past transactions or feedbacks (direct trust) and recommendations (indirect trust). Further some clustering made among all vehicle users (according to specific area, some areas are highly critical etc.). Further, some responsible users/verifiers/observers need to monitor each vehicle's behavior (available in cluster). For communication, messages are forwarded with digitally signed by sender (using public/secret key i.e. digital key) to other users (on receiver side). This message is decrypted by the receiver with known key pairs. This work verifies the sender, keeps communication confidential, secure and provides results with less overhead and delay. In simulation work, this work provides a certain level of trust with less attacker/malicious peers. Also this paper reduces confusion by clarifying terms between vehicular network and vehicular cloud.