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Security enhancement of an auditing scheme for shared cloud data

Rabaninejad, R ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1504/IJIPT.2022.122033
  3. Publisher: Inderscience Publishers , 2022
  4. Abstract:
  5. In cloud storage services, public auditing mechanisms allow a third party to verify integrity of the outsourced data on behalf of data owners without the need to retrieve data from the cloud server. In some applications, the identity of data users should be kept private from the third party auditor. Oruta is a privacy preserving public auditing scheme for shared data in the cloud which exploits ring signatures to protect the identity privacy. In this paper, we propose two attacks and demonstrate that the scheme is insecure and a dishonest server can arbitrarily tamper the outsourced data without being detected by the auditor. We also propose a solution to remedy this weakness with the minimum overhead and without losing any desirable features of the scheme. Performance evaluation demonstrates acceptable efficiency of improved scheme in comparison to the original protocol. © 2022 Inderscience Enterprises Ltd
  6. Keywords:
  7. Cloud storage ; Cloud security ; Network security ; Privacy-preserving techniques ; Auditing mechanism ; Cloud data ; Cloud storage services ; Cloud storages ; Outsourced datum ; Public auditing ; Security analysis ; Security enhancements ; Shared data ; Third parties ; Digital storage
  8. Source: International Journal of Internet Protocol Technology ; Volume 15, Issue 1 , 2022 , Pages 60-68 ; 17438209 (ISSN)
  9. URL: https://www.inderscience.com/info/inarticle.php?artid=122033