A Systematic Review of Hybrid Encryption Techniques for Secure and Scalable Cloud-Based File Storage and Sharing Systems

Vishal Jayvant Jagdale, Dr and Jeetendra Singh Yadav

International Journal of Scientific Research in Artificial Intelligence and Machine Learning, 2026, vol. 2, issue 2, 63-72

Abstract: Cloud-based file storage and sharing systems offer scalability, cost-efficiency and remote accessibility, but outsourcing data to third-party cloud service providers introduces significant confidentiality, integrity and access-control risks. Neither purely symmetric nor purely asymmetric cryptographic schemes satisfactorily address these risks in isolation: symmetric algorithms such as AES offer high throughput but weak key-distribution properties, while asymmetric algorithms such as RSA offer secure key exchange at substantially higher computational cost. This has motivated a large body of research into hybrid encryption techniques that combine multiple cryptographic primitives — symmetric-asymmetric combinations, attribute-based encryption (ABE), homomorphic encryption, convergent encryption for deduplication, and blockchain-integrated access control — to jointly achieve confidentiality, fine-grained access control, scalability and performance. This paper presents a systematic review of hybrid encryption techniques for secure and scalable cloud-based file storage and sharing systems, synthesizing findings from peer-reviewed surveys and primary studies retrieved through structured literature search. The review develops a taxonomy of hybrid encryption approaches, summarizes their reported security and performance characteristics, and discusses persistent open challenges including key management complexity, the quantum vulnerability of RSA-based hybrid schemes, the computational overhead of fully homomorphic encryption, the tension between data deduplication and per-user encryption, and the scalability limits of blockchain-based access control. All claims in this review are attributed to their original cited source; no performance figures are invented.

Keywords: Hybrid Encryption; Cloud Storage; File Sharing; Cloud Security; Attribute-Based Encryption; Homomorphic Encryption; Data Deduplication; Scalability; Systematic Review (search for similar items in EconPapers)
Date: 2026
Note: Article URL: https://ijsraiml.com/home/article/view/IJSRAIML26230
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Persistent link: https://EconPapers.repec.org/RePEc:jbo:ijsrml:v2:y2026:i2:id:96

DOI: 10.5281/zenodo.22680515

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