Open Access

ARTICLE

Blockchain Merkle-Tree Ethereum Approach in Enterprise Multitenant Cloud Environment

Pooja Dhiman¹, Santosh Kumar Henge¹, Sartaj Singh¹, Avinash Kaur², Parminder Singh^2,3, Mustapha Hadabou^3,*

1 School of Computer Applications, Lovely Professional University, Phagwara, 144001, India
2 School of Computer Science and Engineering, Lovely Professional University, Phagwara, 144001, India
3 School of Computer Science, Mohammed VI Polytechnic University, Ben Guerir, 43150, Morocco

* Corresponding Author: Mustapha Hadabou. Email:

Computers, Materials & Continua 2023, 74(2), 3297-3313. https://doi.org/10.32604/cmc.2023.030558

Received 29 March 2022; Accepted 12 July 2022; Issue published 31 October 2022

Abstract

This research paper puts emphasis on using cloud computing with Blockchain (BC) to improve the security and privacy in a cloud. The security of data is not guaranteed as there is always a risk of leakage of users’ data. Blockchain can be used in a multi-tenant cloud environment (MTCE) to improve the security of data, as it is a decentralized approach. Data is saved in unaltered form. Also, Blockchain is not owned by a single organization. The encryption process can be done using a Homomorphic encryption (HE) algorithm along with hashing technique, hereby allowing computations on encrypted data without the need for decryption. This research paper is composed of four objectives: Analysis of cloud security using Blockchain technology; Exceptional scenario of Blockchain architecture in an enterprise-level MTCE; Implementation of cipher-text policy attribute-based encryption (CP-ABE) algorithm; Implementation of Merkle tree using Ethereum (MTuE) in a Multi-tenant system. Out of these four objectives, the main focus is on the implementation of CP-ABE algorithm. CP-ABE parameters are proposed for different levels of tenants. The levels include inner tenant, outer tenant, Inner-Outer-Tenant, Inner-Outer-External-Tenant, Outer-Inner-Tenant, External-Outer-Inner-Tenant and the parameters such as token, private key, public key, access tree, message, attribute set, node-level, cipher-text, salting which will help in providing better security using CP-ABE algorithm in a multi-tenant environment (MTE) where tenants can be provided with different levels of security and achieved 92 percentage of authenticity and access-control of the data.

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Keywords

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