Blockchain-Enhanced Framework for Ensuring Data Consistency, Transparency and Privacy in Cloud Computing
Kavitha T, Kavitha V · Journal of Applied Engineering and Technological Science (JAETS) · 2025
The extensive utilization of cloud computing has transformed the storage and accessibility of data, but it comes with extreme challenges of data consistency, transparency, and privacy.The traditional security measures are insufficient to stop unauthorized changes, leakage of data, and verification of integrity in a multi-tenant cloud.In this paper we propose a blockchain system based on decentralized trust, immutable record, and cryptographic hash functions to secure cloud data.It uses a Merkle hash tree to prove data integrity and uses smart contracts to verify automation.The model provides secure and transparent data management.A framework of distributed virtual machine agents is put forward for the secure cooperation of cloud tenants and real-time authenticity verification of data.The proposed method cuts down on computations, is more scalable, and reduces the risk of storing on a central point.Based on the experimental results, success with 90% verification shows that blockchain technology is an effective data security tool for a cloud computing system.This messaging system helps in improving the integrity verification process.Thus, any illegitimate data alteration will get immediately captured.The paper contributes to the establishment of a reliable, transparent and efficient cloud management system, which will lead to future decentralized cloud infrastructures.