Blockchain Based Inter-Organizational Secure File Sharing System

A consortium of organizations collaborates and exchanges information to create synergies in their operations. Centralized systems of file-sharing cannot provide distributed trust and transparency. Blockchain technology can be used to share files securely and transparently.This paper proposes a blockchain-based inter-organizational secure file-sharing system. It can be used by a consortium of organizations to securely exchange files in a distributed fashion. Hyperledger Fabric, an enterprise blockchain framework, is used for blockchain network setup and the development of smart contracts. The Inter Planetary File System (IPFS) is used for storing files in a distributed way. The paper provides the workflow for identity management and file-sharing processes. The proposed system allows a consortium of organizations to share files with confidentiality, integrity, and availability using blockchain.