Blockchain based MERN Project - VaultX

VaultX is a high-security, blockchain-powered storage solution that ensures military-grade safety for sensitive files. It uses a two-way authentication storage system, integrating decentralized storage (Lighthouse), blockchain security, and a central database to provide unmatched reliability and integrity.

🚀 How VaultX Works

1️⃣ Two-Way Authentication Storage

VaultX employs a dual-layer security mechanism to ensure maximum safety for stored data:

Step 1: Decentralized Storage with Lighthouse
- The uploaded file is stored in Lighthouse (a decentralized storage network).
- Lighthouse returns a Content Identifier (CID), which acts as a unique fingerprint of the file.
Step 2: Blockchain Security
- The CID, along with user email and file hash, is stored on the blockchain as a unique block.
- This ensures immutability and prevents unauthorized modifications.
Step 3: Centralized Database Storage
- The unique block containing the CID, email, and hash is stored in the VaultX database.
- This allows fast retrieval and enhanced user experience, ensuring that even if the blockchain is slow, users can quickly access their data.

This hybrid approach ensures that files are permanently stored, tamper-proof, and accessible only by authorized users.

🔒 Security & Military-Grade Safety

VaultX is built with security as a top priority. Here’s how it ensures maximum data safety:

✅ Decentralization – Eliminates single points of failure by leveraging blockchain and Lighthouse storage.
✅ Immutability – Once stored, data cannot be altered or deleted from the blockchain.
✅ End-to-End Encryption – Ensures that files and metadata are encrypted before storage.
✅ Zero Trust Model – Requires both blockchain verification and database validation before file retrieval.
✅ Military-Grade Protection – Uses cryptographic hashing and blockchain consensus to prevent data tampering.

🔐 Security of Endpoints & Frontend

VaultX follows strict security protocols to safeguard both backend endpoints and frontend authentication:

🔹 Secure API Endpoints

Endpoints are protected using JWT authentication.
Only verified requests are allowed to access user data.
Requests are validated against blockchain records to prevent unauthorized access.

🔹 Frontend Protection

Context API manages authentication and access control.
Users must be logged in to view stored files.
MetaMask authentication ensures transactions are signed securely before blockchain interactions.

🏗️ MetaMask Integration

VaultX uses MetaMask for blockchain transactions. Here’s how it works:

🔹 User Authentication – MetaMask connects users to the Ethereum network securely.
🔹 Transaction Signing – Every blockchain transaction (storing CID, verifying user data) requires the user’s signature via MetaMask.
🔹 Secure Payments (If Needed) – VaultX can integrate payment functionality for premium storage plans.

MetaMask ensures that all blockchain interactions are user-verified, secure, and immutable.

🌟 Key Features of VaultX

✅ Hybrid Storage Approach – Combines blockchain, decentralized storage, and a central database for ultimate security and efficiency.
✅ Tamper-Proof Data – Once stored on the blockchain, data cannot be modified.
✅ Military-Grade Encryption – Secure hashing and encryption protect sensitive data.
✅ Seamless User Experience – Easy-to-use frontend with React & Material UI.
✅ MetaMask Authentication – Secure access control using blockchain wallets.
✅ Fast & Reliable Access – Data retrieval is quick due to a hybrid storage system.
✅ Scalable & Future-Proof – Designed to support growing data needs with decentralized storage.

🚀 Running VaultX

Development Mode

To run the app in development mode:

npm run dev

This will start both the frontend and backend concurrently for development.

Production Mode

For production, run:

npm start

This will launch the fully integrated VaultX application.

🔗 Conclusion

VaultX is a cutting-edge, blockchain-powered storage solution designed for security, reliability, and ease of use. Whether you're storing sensitive business documents or personal files, VaultX ensures your data remains safe, immutable, and always accessible.

🔹 Store securely. Retrieve easily. Stay protected with VaultX! 🚀

Credentials

Create a .env after clone in the root directory as same as index.js and give three credentials in it

MONGO_URL(mongodb database connection string)
PORT (port on which application runs, other than 5173)
JWT_SECRET anything you want to give

In the ContractProvider.jsx change the api key of lighthouse storage If you redploy the contract change contract_address and contract ABI in Contract.jsx

For more details on the frontend read the readme.md of certificate https://vaultx-hvfv.onrender.com you can find application on this site ensure metamask extension is installed in the browser on which the site is rendered

Hackur45 / Blockchain_Storage_VaultX