Article
Secure File Sharing with Blockchain And IPFS
Secure file sharing is a critical requirement in modern digital ecosystems, especially with increasing concerns about data privacy, integrity, and unauthorized access. Traditional centralized storage systems often suffer from single-point failures, data tampering, and privacy vulnerabilities. This project proposes a decentralized secure file sharing system leveraging Blockchain and InterPlanetary File System (IPFS). Blockchain ensures immutability, transparency, and tamper-evident audit trails for file transactions. IPFS provides distributed, content-addressed storage that eliminates reliance on centralized servers. Users can upload, share, and retrieve files securely using cryptographic hashes. Smart contracts govern access control, permission updates, and file metadata management on the blockchain. File content itself is stored on IPFS, while its reference hash is recorded onchain for verification. End-to-end encryption ensures confidentiality of sensitive data. Consensus mechanisms prevent unauthorized modifications. The system supports user authentication and role-based access control. Decentralized storage enhances fault tolerance and availability. Real-time tracking of file changes prevents data tampering. Auditable logs enable forensic investigations. Scalability is achieved through distributed networks. The architecture supports interoperability with existing storage solutions. This approach strengthens data security, privacy, and trust for collaborative environments. Overall, blockchain and IPFS jointly provide a scalable and secure file sharing framework for modern applications.
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