LDuAP: lightweight dual auditing protocol to verify data integrity in cloud storage servers

Cloud Service Providers (CSP) allow the users to store their data in the cloud storage servers. However, outsourcing the confidential data increases the security vulnerabilities as the data owner loses the physical on-premise control over the data. In order to verify the integrity of the outsourced...

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Bibliographic Details
Published in:Journal of ambient intelligence and humanized computing 2022-08, Vol.13 (8), p.3787-3805
Main Authors: Yoosuf, Mohamed Sirajudeen, Anitha, R.
Format: Article
Language:English
Subjects:
Artificial Intelligence
Authenticity
Cloud computing
Communication
Computational Intelligence
Cybersecurity
Data integrity
Data storage
Engineering
Integrity
Lightweight
Metadata
Original Research
Outsourcing
Robotics and Automation
Third party
User Interfaces and Human Computer Interaction
Workloads
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Summary:Cloud Service Providers (CSP) allow the users to store their data in the cloud storage servers. However, outsourcing the confidential data increases the security vulnerabilities as the data owner loses the physical on-premise control over the data. In order to verify the integrity of the outsourced data, auditing has to be performed frequently. Existing public auditing schemes completely depend on the third party auditor (TPA) to verify the integrity. If the trustworthiness of the TPA is compromised, then the TPA might send the fraudulent integrity result to the data owners. Existing schemes does not possess cross verification procedures to overcome the trust issues associated with the TPA. In addition, most of the existing public auditing schemes use RSA and BLS signatures to verify the authenticity of the data owner. Due to large key size, the computation time to perform auditing remains high. To overcome these issues, an LDuAP (lightweight dual auditing protocol) based on the Cramer-Shoup cryptosystem has been proposed. It combines both public and private auditing schemes to improve the authenticity of the integrity results. Initially, a lightweight public auditing is performed for all the data blocks stored in the cloud. Later, to cross-verify the integrity results generated by the TPA, private auditing is performed. The proposed scheme reduces the size of the signature by 50% and subsequently reduces the overhead of the entire auditing scheme. The extensive implementation assessments and security analysis exhibit the legitimacy and efficiency of the proposed scheme.
ISSN:1868-5137
1868-5145
DOI:10.1007/s12652-021-03321-7