Title: Optimised elliptic curve cryptography for data security in cloud computing utilising the CSLEHO algorithm

Authors: Najimoddin Khairoddin Shaikh; Rahat Afreen Khan

Addresses: Department of Computer Science Engineering, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhaji Nagar, Maharashtra, 431004, India ' Department of Computer Science and Engineering, G.H. Raisoni International Skill Tech University, Pune 412214, Maharashtra, India

Abstract: Ensuring security and privacy has become one of the most challenging and critical responsibilities for cloud data in recent years. To enhance security, it is vital to protect sensitive data from unauthorised access. As a result, traditional studies on cloud privacy preservation have developed various decryption, key generation, and encryption techniques. However, challenges such as high computational complexity, and security concerns persist. One public key encryption method, elliptic curve cryptography (ECC), utilises the elliptic curve theory to generate more efficient cryptographic keys for cloud applications. This paper proposes an optimised elliptic curve cryptography (ECC) model for data security in the cloud. In this model, key generation is optimised through an innovative strategy, introducing a new algorithm called the combined sealion and elephant herding optimisation (CSLEHO) model. Furthermore, the results of the proposed approach are compared to those of existing models.

Keywords: elliptic curve cryptography; cloud computing; data security; optimal key generation; optimisation; CSLEHO.

DOI: 10.1504/IJCC.2025.148720

International Journal of Cloud Computing, 2025 Vol.14 No.3, pp.290 - 314

Received: 12 Oct 2024
Accepted: 16 Apr 2025
Published online: 21 Sep 2025 *

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