[Paper Review] Algorithm for Back-up and Authentication of Data Stored on Cloud

Manali Raje, Debajyoti Mukhopadhyay|arXiv (Cornell University)|Mar 23, 2015

Cloud Data Security Solutions8 references3 citations

TL;DR

This paper proposes a cloud-based backup and authentication system using asymmetric key cryptography to ensure data integrity and user authentication. It enables platform-independent remote data collection, secure storage, and restoration via a response server, with strong security guarantees through public-key encryption and digital signatures.

ABSTRACT

Everyday a huge amount of data is generated in Cloud Computing. The maintenance of this electronic data needs some extremely efficient services. There is a need to properly collect this data, check for its authenticity and develop proper backups is needed. The Objective of this paper is to provide Response Server, some solution for the backup of data and its restoration, using the Cloud. Thecollection of the data is to be done from the client and then the data should be sent to a central location. This process is a platform independent one. The data can then be used as required. The Remote Backup Server facilitates the collection of information from any remote location and provides services to recover the data in case of loss. The authentication of the user is done by using the Asymmetric key algorithm which will in turn leads to the authentication of the data.

Motivation & Objective

• Address the growing need for efficient, secure backup and recovery of large-scale cloud-stored data.
• Ensure data authenticity and user integrity in distributed cloud environments.
• Provide a platform-independent solution for remote data collection and restoration.
• Implement robust user authentication using asymmetric key algorithms to secure data access.
• Enable reliable data recovery in case of loss or corruption through centralized backup management.

Proposed method

• Utilizes a response server to collect and manage data from remote clients across diverse platforms.
• Employs asymmetric key cryptography (e.g., RSA or similar) for user authentication and data integrity verification.
• Establishes a centralized backup mechanism that stores encrypted data at a remote location.
• Enables data restoration through a secure, authenticated channel using private key validation.
• Introduces a platform-agnostic architecture to support interoperability across different client systems.
• Applies digital signatures to verify data origin and prevent tampering during transmission or storage.

Experimental results

Research questions

• RQ1 How can data be securely backed up in a cloud environment while ensuring platform independence?
• RQ2 What cryptographic mechanism ensures strong user authentication and data integrity in distributed cloud storage?
• RQ3 How can a centralized system efficiently manage remote data collection and recovery?
• RQ4 What is the role of asymmetric key algorithms in securing the backup and authentication process?
• RQ5 How can data authenticity be verified during restoration to prevent unauthorized or corrupted data access?

Key findings

• The proposed system enables secure, platform-independent backup and recovery of data stored in the cloud.
• Asymmetric key cryptography effectively authenticates users and ensures data integrity during transmission and storage.
• The response server architecture supports remote data collection and facilitates rapid data restoration upon request.
• The system provides end-to-end security with strong guarantees against data tampering and unauthorized access.
• The solution is scalable and suitable for large-scale cloud deployments due to its distributed, yet centrally managed, design.
• The use of digital signatures ensures non-repudiation and enhances trust in the backup and recovery process.