Enhanced Positional Vigenère (EPV): A Confidentiality-Enabled Encryption Technique for Secure Cloud Storage

Abstract

Cloud computing is an internet-based computing paradigm that provides various hosting and delivery services over the internet. It offers computational resources to users based on their demand. Data storage is one of the main benefits of cloud computing. It provides users with plenty of space to store their data neatly and access it easily, no fuss involved. More and more companies are jumping on cloud platforms that offer Storage as a Service (STaaS), helping them skip the hefty upfront costs and ongoing maintenance of their own servers. However, when organizational and enterprise data are moved to public cloud storage, ensuring data protection and security becomes a critical concern. If unencrypted data is transmitted to the public cloud, there is a possibility of data breaches during transmission. To address this issue, an efficient technique called Enhanced Positional Vigenère (EPV) is proposed in this work. Strengthening the ciphertext and improving data security are the goals of the suggested approach. The EPV technique is implemented in Java, and our experiments show it boosts performance, ramps up efficiency, and makes the ciphertext even more complex.