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Tornado Instances Factory

About

This repository contains governance proposal factory for the addition of new Tornado ERC20 instances to the Tornado router.

Anyone can create governance proposal for the addition of a new ERC20 instance by calling createProposalApprove/createProposalPermit method of the factory with parameters (proposal creation fee in TORN is charged from sender):

  1. address token - address of ERC20 token for a new instance
  2. uint24 uniswapPoolSwappingFee - fee value of Uniswap instance which will be used for TORN/token price determination. 3000 means 0.3% fee Uniswap pool.
  3. uint256[] denominations - list of denominations for each new instance (tokens can only be deposited in certain denominations into instances).
  4. uint32[] protocolFees - list of protocol fees for each new instance (this fee is only charged from registrated relayer during withdrawal process). 100 means 1% of instance denomination fee for withdrawal throw registrated relayer.

Factory parameters

  1. max number of new instances in one proposal - the current version supports the addition of a maximum of 3 instances at once.
  2. proposal creation fee - this fee is charged from creator of proposal during createProposalApprove/createProposalPermit factory method execution. It can be changed by governance. Default value is stored in config.js.

Warnings

  1. This version of the factory creates a proposal for immutable Tornado instance initialization.
  2. Users should manually propose a proposal after its creation using the factory (in governance UI for example). As propose() method caller must have 1000 TORN locked in the governance. Moreover, the proposer can't propose more than one proposal simultaneously.

Tests

Setting up the repository:

    git clone https://github.com/mirru2532/tornado-instances.git
    cd tornado-instances
    yarn
    cp .env.example .env

Please fill out .env according to the template provided in it. Please ensure that all of the example values are set to the correct addresses.

To run test scripts:

    yarn test

Test scripts cover instance factory deployment, proposal deployment and executing proposal.

Deploy

Check config.js for actual values.

With salt = 0x0000000000000000000000000000000000000000000000000000000047941987 address must be:

  1. InstanceFactory - 0x7a6e627DC6F66617b4A74Be097A8f56c622fa24c

Check addresses with current config:

    yarn compile
    node -e 'require("./src/generateAddresses").generateWithLog()'

Deploy InstanceFactory:

    yarn hardhat run scripts/deployInstanceFactory.js --network mainnet

Verify InstanceFactory on Etherscan:

    yarn hardhat verify --network <network-name> <contract-address> <constructor-arguments>

With current config:

    yarn hardhat verify --network mainnet 0x7a6e627DC6F66617b4A74Be097A8f56c622fa24c 0xce172ce1F20EC0B3728c9965470eaf994A03557A 0x83584f83f26aF4eDDA9CBe8C730bc87C364b28fe 20 0x5efda50f22d34F262c29268506C5Fa42cB56A1Ce 0xB20c66C4DE72433F3cE747b58B86830c459CA911 0x77777FeDdddFfC19Ff86DB637967013e6C6A116C 200000000000000000000