A Collaborative Auditing Blockchain for Trustworthy Data Integrity in Cloud Storage System

Abstract

Cloud storage system provides data owners with remote storage service, which allows them to outsource data without local storage burden. Nevertheless, the cloud storage service is not fully trustworthy since it may not be honest and remote data would be corrupted. One way to ensure trustworthy preservation of cloud data is the remote data auditing method, through which data owners can check storage reliability of cloud system on demand and avoid potential data corruption in time. However, private auditing methods fail to promise the mutual trust in auditing results. Thus, public auditing methods are introduced, in which traditionally a third party auditor is delegated to interact with cloud service providers for auditing tasks. Although the third party auditor serves as a medium to exchange trust, a centralized third party is hard to stay neutral, which exposes the remote data auditing to some threats such as collusion attacks. To address the trust problem between data owners and cloud service providers, we propose a collaborative auditing blockchain framework for cloud data storage. In this framework, all consensus nodes substitute for the single third party auditor to execute auditing delegations and record them permanently, thereby preventing entities from deceiving each other. Security analysis shows that the proposed framework has advantage of preserving remote data integrity from various attacks. Performance analysis demonstrates that the framework is more functional and resource-friendly than existing schemes. INDEX TERMS Cloud storage, collaborative blockchain, public auditing, trustworthy data integrity.

5G based Blockchain network for authentic and ethical keyword search engine

“…Further, addition of various BBD mini-base stations, network broker and access nodes are realised in order to make the system architecture immunised and equivalent to a pure decentralised system. The effectiveness of the architecture is made increase with the use of 5000 weighted badges, with the goal that range utilisation of all CSPs [19] should reach 100 percent. At last, the use of cryptocurrency at each and every node of blockchain structure is fostered to avoid any errors of interference at various levels.…”

“…10. At last, the deployment of BBD cloud architecture [19] takes place within each and every network level which allows all network units to store complex keyword based network data at ease. Special security layer is implemented in the cloud architecture in order to store several private and public keys associated with users and CSPs stations.…”

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“…Using a blockchain for data auditing involves all peer nodes as an association to verify the correctness of outsourced data. This proposed arrangement by Huang et al [4] decreases the data owner's cost of verification.…”

Outsourced Auditing With Data Integrity Verification Scheme (OA-DIV) and Dynamic Operations for Cloud Data with Multi-Copies

“…In [13], a trustworthy data integrity is presented for cloud storage system by employing collaborative auditing block chain mechanism. The authors of this work intend to handle the trust issue between the data owners and Cloud Service Providers (CSP).…”