Skip to Main content Skip to Navigation
Journal articles

Improved Proofs Of Retrievability And Replication For Data Availability In Cloud Storage

Abstract : For a high level of data availability and reliability, a common strategy for cloud service providers is to rely on replication, i.e. storing several replicas onto different servers. To provide cloud users with a strong guarantee that all replicas required by them are actually stored, many multi-replica integrity auditing schemes were proposed. However, most existing solutions are not resource economical since users need to create and upload replicas of their files by themselves. A multi-replica solution called Mirror is presented to overcome the problems, but we find that it is vulnerable to storage saving attack, by which a dishonest provider can considerably save storage costs compared to the costs of storing all the replicas honestly—while still can pass any challenge successfully. In addition, we also find that Mirror is easily subject to substitution attack and forgery attack, which pose new security risks for cloud users. To address the problems, we propose some simple yet effective countermeasures and an improved proofs of retrievability and replication scheme, which can resist the aforesaid attacks and maintain the advantages of Mirror, such as economical bandwidth and efficient verification. Experimental results show that our scheme exhibits comparable performance with Mirror while achieving high security.
Document type :
Journal articles
Complete list of metadatas

https://hal.ehesp.fr/hal-02973771
Contributor : Scd Ehesp <>
Submitted on : Wednesday, October 21, 2020 - 11:39:41 AM
Last modification on : Thursday, November 26, 2020 - 3:59:11 PM

Identifiers

Citation

Wei Guo, Sujuan Qin, Jun Lu, Fei Gao, Zhengping Jin, et al.. Improved Proofs Of Retrievability And Replication For Data Availability In Cloud Storage. The Computer Journal, Oxford University Press (UK), 2020, 63 (8), pp.1216-1230. ⟨10.1093/comjnl/bxz151⟩. ⟨hal-02973771⟩

Share

Metrics

Record views

19