ZK-SNARKs Library for Rust and WASM

Overview

This library provides an implementation of Zero-Knowledge Succinct Non-Interactive Argument of Knowledge (ZK-SNARKs) for both Rust and WebAssembly (WASM). It includes functions for generating and verifying ZK-SNARK proofs in blockchain applications and cryptographic protocols. The library is designed to be lightweight, secure, and optimized for performance.

Features:

• Generate and Verify ZK-SNARK Proofs: Easily generate ZK-SNARK proofs and verify them using simple APIs.
• WASM Support: The library is fully compatible with WebAssembly, allowing it to be used in JavaScript environments such as browsers and Node.js.
• Cryptographically Secure: Built with industry-standard cryptographic algorithms like SHA-256 and secure random number generation.
• Optimized for Blockchain: Perfect for blockchain applications where privacy and verification are critical.

Getting Started

Requirements

• Rust (version 1.56 or higher)
• wasm-bindgen for WebAssembly support

Installation

Add this crate to your Cargo.toml dependencies:

[dependencies]
zk-snarks-lib = "0.1.0"
wasm-bindgen = "0.2"
sha2 = "0.10"
getrandom = "0.2"

Usage

Rust Example Here's how you can generate and verify a ZK-SNARK proof in a Rust environment.

use zk_snarks_lib::{generate_zk_proof, verify_zk_proof};
use zk_snarks_lib::utils::random_witness;

fn main() {
    // Generate a random witness
    let witness = random_witness();
    
    // Generate a ZK-SNARK proof
    let proof = generate_zk_proof(&witness);
    println!("Proof: {}", proof);

    // Verify the proof with the correct verification key
    let is_valid = verify_zk_proof(&witness, 123456);  // Random verification key
    println!("Is the proof valid? {}", is_valid);
}

WebAssembly Example (JavaScript)

To use the library in a JavaScript project, build the WASM module using wasm-pack and import it as follows:

import init, { generate_zk_proof, verify_zk_proof } from './pkg/zk_snarks_lib.js';

async function run() {
    await init();
    
    const witness = new Uint8Array([/* ...random data... */]);
    const proof = generate_zk_proof(witness);
    console.log(`Generated Proof: ${proof}`);

    const isValid = verify_zk_proof(witness, 123456);  // Random verification key
    console.log(`Is the proof valid? ${isValid}`);
}

run();