A Blockchain-based Data Sharing Scheme using Attribute-Based Encryption and Semi-Fungible Tokens

This repository contains the client and key-generation server for a blockchain-based data-sharing scheme utilizing Ciphertext-Policy Attribute-Based Encryption (CP-ABE) and semi-fungible tokens.

Project Structure

• rabe-wasm: Contains a Rust package wrapped as WebAssembly. The compiled WebAssembly files are located in the public directory.
• src: Holds all the files necessary to build and run the web application, including the client-side logic and the key-generation server.
  • app: Implements folder-based routing for the web application. Each subdirectory represents a distinct route, with api specifically handling the key-generation server functionalities.
  • components: Contains reusable UI components.
  • contexts: Manages global state, including MetaMask wallet connections.
  • contracts: Stores the ABIs for the smart contracts.
  • lib: Includes configuration files for third-party services like Shadowsocks and Supabase.
  • util: Offers utility functions, including those for interacting with MetaMask or the key-generation server.

Build Instructions

1. Install dependencies: Run pnpm i to install the required Node.js packages.
2. Build the project:
   • Compile the Rust package to WebAssembly: pnpm run build:rabe
   • Build the web application: pnpm run build
3. Run the application: Start the development server with pnpm dev.

Requirements

Before starting, ensure you have the following installed:

• Node.js: Required for npm packages and running Node.js commands.
• pnpm: A fast, efficient Node.js package manager.
• Rust and Cargo: Needed for compiling the Rust code. Cargo is Rust's package manager and build system.
• wasm-pack: A tool for building Rust-generated WebAssembly packages for the web.
• A modern web browser: For running and interacting with the web application.

Enviornment Variables

NEXT_PUBLIC_THIRDWEB_API_KEY: The API key of the Thirdweb account used for connecting to IPFS

NEXT_PUBLIC_THIRDWEB_CLIENT_ID: The client ID of the Thirdweb account used for connecting to IPFS

APPLICATION_DOMAIN: The domain that the application is currently running on. If running locally, this should be http://localhost:3000

NEXT_PUBLIC_SUPABASE_URL: The connection url to a supabase database

NEXT_PUBLIC_SUPABASE_ANON_KEY: The anon key to a supabase database

INFURA_API_KEY: The api key to an infura account