Blockchain-Enabled Cloud Computing: A Systematic Review of Approaches and Future Directions

The digital transformation across industries has given rise to an ever-increasing reliance on cloud computing, enabling scalable, on-demand access to storage and computational resources. However, while cloud services have revolutionized the way data is managed and accessed, they also pose critical concerns related to trust, transparency, data privacy, and centralized control. Blockchain, with its decentralized and tamper-resistant ledger, emerges as a promising solution to overcome these limitations. Integrating blockchain with cloud computing is gaining significant traction in academia and industry as it can ensure secure, transparent, and verifiable operations within cloud infrastructures. The convergence of these two technologies forms a new paradigm that enhances data integrity, authentication, and secure sharing in cloud-based environments. This paper presents a comprehensive survey of the integration of blockchain and cloud computing, highlighting recent research contributions, architectural models, security enhancements, and the challenges that must be addressed to realize their full potential.