Decentralized File Sharing System

A secure and decentralized file storage and access control system leveraging Ethereum smart contracts, IPFS for storage, and a React-based frontend with MetaMask integration.

Getting Started

Install project dependencies:

npm install

Available Commands

npx hardhat help                         # Show all available Hardhat commands
npx hardhat test                         # Run the test suite
REPORT_GAS=true npx hardhat test         # Run tests with gas usage report
npx hardhat node                         # Start a local Ethereum node
npx hardhat run scripts/deploy.js        # Deploy contracts to default network
npx hardhat run scripts/deploy.js --network localhost  # Deploy to local Hardhat node

Tech Stack

• Solidity – Smart contracts for access control
• Hardhat – Ethereum development environment
• IPFS – Distributed, content-addressed file storage
• Pinata – IPFS pinning service for file persistence
• React – Frontend framework
• MetaMask – Wallet integration for Ethereum authentication

Features

• Upload and store files on IPFS
• Manage fine-grained access control via smart contracts
• Grant and revoke file access permissions
• Authenticate users securely using MetaMask
• Intuitive web interface for managing files and permissions