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ShareVault

"Airbnb for data storage: A decentralized platform for secure, encrypted data sharing using blockchain and zero-knowledge proofs."

🚀 Overview

ShareVault is a decentralized data storage platform that allows users to securely share and retrieve data. By leveraging blockchain technology, encryption, and zero-knowledge proofs, ShareVault ensures:

  • Data Privacy: Files are encrypted and fragmented for secure storage.
  • Data Integrity: Zero-Knowledge Proofs (ZKPs) verify storage without exposing content.
  • Decentralization: Data fragments are distributed across peer-to-peer storage nodes.
  • Fair Compensation: Storage providers earn cryptocurrency for securely hosting data.

🌟 Features

  • Encrypted Fragmentation: Files are split into encrypted fragments using erasure coding techniques.
  • Zero-Knowledge Proofs: Ensure storage without revealing data content.
  • Blockchain Integration: Payments and metadata storage powered by Ethereum/Polygon.
  • Decentralized Storage: IPFS/Filecoin for distributed, resilient data storage.
  • Redundancy & Resilience: Redundant data fragments ensure reliable retrieval.

🛠️ Technology Stack

  • Frontend: React.js, Next.js
  • Backend: Node.js
  • Blockchain: Ethereum, Polygon, Solidity Smart Contracts
  • Storage Layer: IPFS/Filecoin
  • Zero-Knowledge Proofs: zk-SNARKs/zk-STARKs Libraries
  • Data Encoding: Reed-Solomon Codes

🧩 How It Works

  1. Data Upload:
    • Files are uploaded and split into encrypted fragments.
  2. Fragment Distribution:
    • Fragments are distributed across decentralized storage nodes.
  3. Proof of Storage:
    • Nodes use ZKPs to prove they securely store fragments.
  4. Data Retrieval:
    • Users retrieve encrypted fragments, which are reassembled and decrypted.
  5. Payment Mechanism:
    • Storage providers earn cryptocurrency for their contributions.

⚙️ Setup

Prerequisites

  • Node.js and npm/pnpm
  • Truffle
  • Ganache or a testnet (e.g., Polygon Mumbai)
  • IPFS/Filecoin Node

Steps

  1. Clone the repository:

    git clone https://github.com/your-username/sharevault.git
cd sharevault

  2. Install dependencies:

    pnpm install

  3. Configure the Truffle project:

  • Update truffle-config.js with your blockchain network details (e.g., Polygon Mumbai).

  1. Deploy the smart contracts:

    truffle migrate --network <network_name>

  2. Start the frontend: (WIP)

    npm run dev

🛡️ Security

ShareVault employs:

  • AES Encryption: Protects data fragments, ensuring only authorized users can decrypt them.
  • zk-SNARKs: Validates secure storage without revealing fragment contents.
  • Smart Contracts: Ensures tamper-proof metadata management and payment processing.

📈 Future Enhancements

  • Scalability: Integrate advanced zk-STARKs for improved performance on large datasets.
  • Mobile Support: Develop cross-platform mobile applications for easier access.
  • Real-Time Monitoring: Introduce enhanced redundancy and monitoring mechanisms to track data availability.

💻 Contributors

📜 License

This project is licensed under the MIT License. See the LICENSE file for details.