A Hybrid Multi-Cloud Framework Using the IBBE Key Management System for Securing Data Storage

Manreet Sohal, Salil Bharany (), Sandeep Sharma, Mashael S. Maashi and Mohammed Aljebreen
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Manreet Sohal: Department of Computer Applications, Guru Nanak Dev Engineering College, Ludhiana 141006, India
Salil Bharany: Department of Computer Engineering & Technology, Guru Nanak Dev University, Amritsar 143005, India
Sandeep Sharma: Department of Computer Engineering & Technology, Guru Nanak Dev University, Amritsar 143005, India
Mashael S. Maashi: Software Engineering Department, College of Computer and Information Sciences, King Saud University, Riyadh 11451, Saudi Arabia
Mohammed Aljebreen: Department of Computer Science, Community College, King Saud University, Riyadh 11437, Saudi Arabia

Sustainability, 2022, vol. 14, issue 20, 1-24

Abstract: Information storage and access in multi-cloud environments have become quite prevalent. In this paper, a multi-cloud framework is presented that secures users’ data. The primary goal of this framework is to secure users’ data from untrusted Cloud Service Providers (CSPs). They can collude with other malicious users and can hand over users’ data to these malicious users for their beneficial interests. In order to achieve this goal, the data are split into parts, and then each part is encrypted and uploaded to a different cloud. Therefore, client-side cryptography is used in this framework. For encrypting users’ data, the BDNA encryption technique is used. This framework presents a hybrid cryptographic approach that uses Identity-based Broadcast Encryption (IBBE) for managing the keys of the symmetric key algorithm (BDNA) by encrypting them with the particular version of IBBE. The work presented in this research paper is the first practical implementation of IBBE for securing encryption keys. Earlier, IBBE was only used for securely broadcasting data across many users over a network. The security of this hybrid scheme was proved through Indistinguishable Chosen-Ciphertext Attacks. This double encryption process makes the framework secure against all insiders and malicious users’ attacks. The proposed framework was implemented as a web application, and real-time storage clouds were used for storing the data. The workflow of the proposed framework is presented through screenshots of different working modules.

Keywords: multi-clouds; storage security; client-side cryptography; key management (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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