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Secure Document Sharing & Validation

Why Choose This Project?

Traditional document sharing systems are centralized, prone to tampering, unauthorized access, and data leaks. This blockchain-based platform enables secure document sharing, verification, and validation, ensuring authenticity, immutability, and traceability. Smart contracts automate access control and verification, making it ideal for legal, educational, and corporate document management.

What You Get

Complete Source Code (Frontend + Backend + Smart Contracts)
Fully Working Sender & Receiver Panels
Mobile & Desktop Responsive UI
Wallet-Based Login & Authentication (MetaMask)
Document Upload, Sharing, and Permission Management
Smart Contract Integration for Validation & Verification
Full Documentation & Setup Instructions
Ready for Real-World Deployment or Resale

Built With Latest Tech Stack

Layer	Technologies Used
Frontend	HTML5, CSS3, Bootstrap 5, JavaScript, React.js / Web3.js
Backend	Node.js (Express.js) / Java Spring Boot (optional)
Blockchain	Solidity, Ethereum (Testnet), Hardhat / Truffle
Wallet	MetaMask (Web3 Wallet Integration)
Storage	IPFS / Off-chain encrypted storage for documents
Database	MongoDB / MySQL (for metadata and access logs)
Security	Role-based access, encrypted files, hashed logs, input validation

Features That Make It Market-Ready

Decentralized Document Management – Share documents without intermediaries
Wallet-Based Authentication – Login via MetaMask; secure and passwordless
Smart Contract Access Control – Grant or revoke document access dynamically
Immutable Validation Records – All document uploads, shares, and verifications recorded on blockchain
Secure Storage – Files encrypted and stored on IPFS or off-chain storage
Sender & Receiver Dashboards – Track shared documents, access history, and validation status
Automated Verification – Smart contracts validate authenticity and prevent tampering
Real-Time Notifications – Alerts for document access or validation events

Working Flow

User Connects Wallet
→ Login as Sender or Receiver via MetaMask
Document Upload
→ Sender uploads document
→ File encrypted and stored on IPFS
→ Metadata and hash recorded on blockchain
Access Granting
→ Sender grants permission to selected receivers via smart contract
→ Access rights stored immutably
Document Retrieval
→ Authorized receivers request access
→ Smart contract validates rights and allows secure download
Verification & Validation
→ Blockchain stores hash and timestamp of document
→ Any tampering attempt can be detected instantly
Dashboard Updates
→ Sender and receiver see document status, access logs, and validation results