Volume 2 - Issue 3, May - June 2026

This project presents a blockchain-based access control system for cloud storage designed to enhance security, transparency, and data integrity. Traditional cloud storage systems rely on centralized control, which makes them vulnerable to unauthorized access, data breaches, and lack of user trust. To overcome these issues, the proposed system integrates Blockchain for secure and tamperproof access management and InterPlanetary File System for decentralized file storage. The system is developed with a user-friendly interface using React, allowing users to interact efficiently. In this system, Admin and Owner can upload files, which are stored in IPFS and identified by a unique cryptographic hash (CID). Access permissions are managed through blockchain-based smart contracts, ensuring that only authorized users can view or download files. Users with granted access can directly view files, while other users can request access, which is then approved or rejected by Admin or Owner. All activities are securely recorded, ensuring transparency and auditability. The proposed system provides a secure, decentralized, and scalable solution for modern cloud storage challenges.

Ajay Gopal Kumawat,"Blockchain-Based Access Control for Cloud Storage" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(3): Page(550-554) May-June 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.