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In this paper, we present an optimized conditional privacy preservation model for vehicle ad-hoc networks (VANETs). This model includes an ID-based cryptosystem to assure users’ anonymity using pseudonyms; however the model provides a backdoor for law enforcement authorities to trace misbehaving and suspicious users. In this model, we propose a heuristic(More)
With the evolution of mobile networks, web services play a tremendous role in many aspects of our life. Therefore, the service providers have to guarantee an acceptable QoS level especially for those offering challenging services such as multimedia applications. Web services provisioning is used to allocate particular services to the tasks of business(More)
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