IACR News item: 21 June 2015
Yuan Zhang, Chunxiang Xu, Shui Yu, Hongwei Li, Xiaojun Zhang
ePrint ReportIn this paper, we propose a secure certificateless public integrity verification scheme (SCLPV). The SCLPV scheme is the first work that simultaneously supports certificateless public verification and resistance against malicious auditors to verify the integrity of outsourced data in CPSS. A formal and strict security proof proves the correctness and security of our scheme. In addition, an elaborate performance analysis demonstrates that our scheme is efficient and practical. Compared with the best of the existing certificateless public verification scheme (CLPV), the SCLPV provides stronger security guarantees in terms of remedying the security vulnerability of the CLPV and resistance against malicious auditors. At the same time, in comparison with the best of integrity verification scheme achieving resistance against malicious auditors, the communication cost between the auditor and the cloud server in the SCLPV is independent of the size of the processed data, meanwhile, the auditor in the SCLPV does not need to manage certificates.
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