Awesome
Overview
This is the submission for Scaling Ethereum hackathon held by ETHGlobal.
see: https://ethglobal.com/showcase/bye-bye-private-key-wm3aa
caveat
This implementation currently doesn't work as zkSync Era limits the max transaction gas limit to 300,000. Plus, the network introduces many changes in dependencies that might cause lots of dep errors. check: https://era.zksync.io/docs/dev/troubleshooting/changelog.html
Contracts
| contract | Description |
|---|---|
| Account.sol | zkSync Account Abstraction Wallet |
| AccountFactory.sol | Deployer of Account.sol |
| WebAuthn.sol | handles values given by webauthn and produce message for validation in EllipticCurve |
| EllipticCurve.sol | verify message and signature with publickey. ECDSA256 & p256 curve |
| Paymaster.sol | sponsor for accounts' meta-transaction |
Development
setup
git clone git@github.com:porco-rosso-j/zksync-account-webauthn.git
cd zksync-account-webauthn
yarn
Run zksync local network
docker should be run first.
git clone https://github.com/matter-labs/local-setup.git
cd local-setup
./start.sh
Deployment
create .env file and add the line NODE_ENV="test".
then run:
yarn hardhat compile
yarn hardhat deploy-zksync --script deploy/deploy.ts
Preparetion for frontend
copy&paste deployed address to frontend/src/scripts/utils/address/ts
webauthn: "0x4B5DF730c2e6b28E17013A1485E5d9",
factory: "0x996462e0eAf00bF6BF0Ea15F29d715C0eD3906F1",
paymaster: "0x1A2894885076934dAf5a398Ff216c6d665707bbA",
run frontend
cd frontend
yarn
yarn start