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Carpooling, as an effective and eco-friendly travel mode, becomes a kind of public spontaneous behavior with multiple travellers sharing a vehicle to reduce individuals’ travel cost, carbon emissions and traffic congestion. Although ubiquitous network access offers great convenience for travellers to find carpools, the safety becomes a big obstacle for them(More)
Smart meters are integral to power dispatch in the emerging smart grid, by periodically collecting and reporting the electricity consumption of users to the control center to satisfy practical requirements. However, the real-time electricity measurements of individual households may contain plenty of users’ privacy, e.g., activities and habits. To resist(More)
Using cloud storage, data owners can remotely store their data and enjoy the on-demand high quality cloud services without the burden of local data storage and maintenance. However, this new paradigm does trigger many security concerns. A major concern is how to ensure the integrity of the outsourced data. To address this issue, recently, a highly efficient(More)
Recently, a public auditing protocol for shared data called Panda (IEEE Transactions on Services Computing, doi: 10.1109/TSC.2013.2295611) was proposed to ensure the correctness of the outsourced data. A distinctive feature of Panda is the support of data sharing and user revocation. Unfortunately, in this letter, we show that Panda is insecure in the sense(More)
1Big Data Research Center, School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China 2State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China 3Department of Electrical and Computer Engineering, University of(More)
Due to the appealing advantages of cloud storage, such as on-demand self-service and ubiquitous network access, an increasing number of users prefer to store their data on remote remote servers. However, outsourced data transfer becomes a critical requirement for users to shift their cloud storage providers because of the emergence of various cloud storage(More)