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zksync-precompile

For report bug only

zkSync Hardhat project template

This project was scaffolded with zksync-cli.

Project Layout

  • /contracts: Contains solidity smart contracts.
  • /deploy: Scripts for contract deployment and interaction.
  • /script: Scripts for contract deployment and interaction.
  • hardhat.config.ts: Configuration settings.

How to Use

  • cp .env.example .env: Config rich wallet
  • yarn install: Install package.
  • yarn compile: Compiles contracts.
  • npx hardhat node-zksync: run inmemory zksync node.
  • npx ts-node scripts/DKG.s.ts: Deploying and call addPKCommittee function that emit error on precompile contract 0x05.
  • npx ts-node scripts/Withdraw.s.ts: Deploying and call verify proof function that return fail cause precompile contract 0x08.

Environment Settings

To keep private keys safe, this project pulls in environment variables from .env files. Primarily, it fetches the wallet's private key.

Rename .env.example to .env and fill in your private key:

WALLET_PRIVATE_KEY=your_private_key_here...

Network Support

hardhat.config.ts comes with a list of networks to deploy and test contracts. Add more by adjusting the networks section in the hardhat.config.ts. To make a network the default, set the defaultNetwork to its name. You can also override the default using the --network option, like: hardhat test --network dockerizedNode.

Useful Links

Reason

The current error found in precompile contracts 0x05 (expmod) and 0x08 (ecPairing) are due to zkSync not yet supporting these two precompile contracts. Contract 0x05 can be easily wrapped with Solidity code, but contract 0x08 is more complex