p4stry / zkvotingsystem

An on-chain voting system combining Zero Knowledge Prove

zktree-vote

Anonymous voting on Ethereum blockchain using zero knowledge proof

Usage

• Install wget (by apt-get install wget on Ubuntu/Debian or brew install wget on MacOS)
• Install the project dependencies and prepare by npm install in the project directory
• Start a Hardhat node by npx hardhat node in the project directory
• In another terminal deploy the smartcontract by npm run deploy
• Start the app by npm start

If the front-end is not loaded correctly, try npm run build then npm start

The app uses MetaMask to connect the blockchain, so the MetaMask extension have to be installed, and connected to the Hardhat local node.

Connect Metamask wallet to local Hardhat network

The smart contract owner is the first Hardhat account, and the second account is set as a validator by the deployment script (Can set in deploy.ts).

If you encounter error "Nonce too high. Expected nonce to be 0 but got 4. Note that transactions can't be queued when automining.", open up your MetaMask window and click on the icon in the top right to display accounts. Go to Settings, then Advanced and hit "Clear activity tab data".

Solved! “Nonce too high” error with MetaMask and Hardhat

Run test script

Using npx hardhat test