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Title Improved dynamic remote data auditing protocol for smart city security
ID_Doc 45535
Authors Zang, L; Yu, Y; Xue, L; Li, YN; Ding, YJ; Tao, XL
Title Improved dynamic remote data auditing protocol for smart city security
Year 2017
Published Personal And Ubiquitous Computing, 21, 5
Abstract Smart city has been greatly promoted by the adoption of information and communication technology. At the same time, data integrity becomes an urgent necessity in cloud storage scenario. When smart city meets cloud, if the data are damaged or corrupted, it will be a serious security loophole of smart city. Recently, numerous remote data auditing (RDA) protocols have been presented, among which Sookhak et al. put forward a dynamic remote data auditing protocol to deal with this major concern. In this paper, we found that this protocol has inherent security flaws, thus fails to achieve its original goal. Specifically, this protocol is vulnerable to two types of attacks, namely replace attack and replay attack. We show the details that how a malicious server can deceive data owners to believe that the data are maintained well by launching such attacks. Then, we describe an improved RDA protocol with provable security by utilizing algebraic signature to fix those security flaws. We employ the rank-based Merkle Hash Tree to achieve verifiable dynamic data operations for our RDA protocol. We also provide detailed security proof of the proposed RDA protocol.
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