Netinfo Security ›› 2017, Vol. 17 ›› Issue (10): 22-28.doi: 10.3969/j.issn.1671-1122.2017.10.004

• Orginal Article • Previous Articles     Next Articles

Research on Multiple-replica Integrity Auditing Method on Supporting Data Dynamic Updating in Cloud Environment

Genqing BIAN1,2, Bilin SHAO2(), Wandong CAI3, Dong WANG1   

  1. 1.School of Information and Control Engineering, Xi’an University of Architecture and Technology, Xi’an Shannxi 710055, China
    2. School of Management, Xi’an University of Architecture and Technology, Xi’an Shannxi 710055, China
    3.School of Computer Science, Northwestern Polytechnical University, Xi’an Shannxi 710072, China
  • Received:2017-08-01 Online:2017-10-10 Published:2020-05-12

Abstract:

In the cloud storage environment, how to efficiently and dynamically complete the integrity of multi-replica data auditing is a challenging issue. This paper studies and proposes a Multiple-replica Integrity Auditing Method on Supporting Data Dynamic Updating. Firstly, BLS signature and bilinear mapping technology are used to realize the batch audit of multi-replica, which avoids the interaction between CSP and TPA, thus reducing the communication overhead in the audit process. Secondly, after connecting each replica number and the file, corresponding replicas are generated by using ElGamal system. Finally, the security of the verification method is analyzed theoretically, and the performance of the verification method is compared experimentally. The results show that the performance of the method is better than the existing methods in communication and computing overhead, which can effectively improve the efficiency of file storage and verification and reduce the computational cost.

Key words: cloud storage, multiple-replica, integrity auditing, ElGamal

CLC Number: