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LBT-based cloud data integrity verification scheme |
| LI Yong1,2, YAO Ge1, LEI Linan1, ZHANG Xiaofei3, YANG Kun4 |
1. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. Fujian Provincial Key Laboratory of Network Security and Cryptology, Fujian Normal University, Fuzhou 350007, China;
3. China Information Technology Security Evaluation Center, Beijing 100085, China;
4. National Institute of Metrology, Beijing 100029, China |
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Abstract With the rapid growth of cloud storage, more and more users are choosing to store their data in the cloud to reduce storage costs. However, users then lose control of the data and the data integrity cannot be ensured. Thus, cloud service providers (CSP) need to provide proof to users that their data is secure through an efficient integrity verification protocol. A number of feasible schemes have been proposed, but they have trouble supporting fully dynamic operations including insert, modify, and delete and they have large computing, storage and communication costs. This paper presents a data integrity verification scheme based on a large branching tree (LBT). The scheme supports fully dynamic updates and simplifies the dynamic update process by constructing a simple authentication tree. Tests show that the scheme reduces the computation of burden of the entities so that the method can be efficiently applied in the cloud environment to verify data integrity with frequent update operations.
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| Keywords
cloud storage
data integrity
provable data prossession
proofs of retrievability
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Issue Date: 15 May 2016
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2016,
Vol. 56
