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Merge pull request #17 from vacp2p/upstream-fixes-foundry

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Modernize repo, use foundry, deploy to sepolia
This commit is contained in:
Aaryamann Challani 2023-03-29 17:58:50 +05:30 committed by GitHub
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2
.env.example
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@ -1,3 +1,3 @@
ETHERSCAN_API_KEY=ABC123ABC123ABC123ABC123ABC123ABC1
ROPSTEN_URL=https://eth-ropsten.alchemyapi.io/v2/<YOUR ALCHEMY KEY>
SEPOLIA_URL=https://eth-sepolia.alchemyapi.io/v2/<YOUR ALCHEMY KEY>
PRIVATE_KEY=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1

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.github/workflows/ci.yml vendored Normal file
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name: CI
on:
push:
branches: [main]
paths:
- "**.sol"
- "scripts/**.ts"
- "test/**.ts"
- "hardhat.config.ts"
- "package.json"
- ".github/workflows/ci.yml"
pull_request:
branches: [main]
paths:
- "**.sol"
- "scripts/**.ts"
- "test/**.ts"
- "hardhat.config.ts"
- "package.json"
- ".github/workflows/ci.yml"
jobs:
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
with:
submodules: recursive
- name: Install Foundry
uses: foundry-rs/foundry-toolchain@v1
with:
version: nightly
- uses: actions/setup-node@v3
with:
node-version: 16
cache: "yarn"
- id: dependencies
run: yarn install
- id: lint
run: yarn lint
- id: test
run: yarn test:verbose
- id: coverage
run: yarn coverage
- id: upload-coverage
# run only in pull requests
if: github.event_name == 'pull_request'
uses: zgosalvez/github-actions-report-lcov@v1
with:
github-token: ${{ secrets.GITHUB_TOKEN }}
coverage-files: lcov.info
artifact-name: code-coverage-report

5
.gitignore vendored
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@ -7,3 +7,8 @@ typechain
#Hardhat files
cache
artifacts
#Foundry files
cache_forge
out
lcov.info

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.gitmodules vendored Normal file
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[submodule "lib/forge-std"]
path = lib/forge-std
url = https://github.com/foundry-rs/forge-std
branch = v1.5.2

4
.husky/pre-commit Executable file
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#!/usr/bin/env sh
. "$(dirname -- "$0")/_/husky.sh"
npx lint-staged

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.solcover.js Normal file
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module.exports = {
istanbulReporter: ["lcov"],
istanbulFolder: "coverage",
};

203
LICENSE-APACHE Normal file
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Copyright (c) 2023 Vac Research
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25
LICENSE-MIT Normal file
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@ -0,0 +1,25 @@
Copyright (c) 2023 Vac Research
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
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The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE O THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

41
README.md
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@ -1,17 +1,32 @@
The [RLN](contracts/Rln.sol) and [PoseidonHasher](contracts/PoseidonHasher.sol) smart contracts are initially borrowed from the following repository https://github.com/kilic/rlnapp and some modifications are made on top of them.
They may undertake further changes in the future as needed.
# Hardhat Project for rln-contract
## Requirements
The following will need to be installed in order to use this repo. Please follow the links and instructions.
- [Git](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
- You'll know you've done it right if you can run `git --version`
- [Foundry / Foundryup](https://github.com/gakonst/foundry)
- This will install `forge`, `cast`, and `anvil`
- You can test you've installed them right by running `forge --version` and get an output like: `forge 0.2.0 (92f8951 2022-08-06T00:09:32.96582Z)`
- To get the latest of each, just run `foundryup`
- [Yarn](https://classic.yarnpkg.com/lang/en/docs/install)
# Hardhat Project for Rln-membership-contract
## Compilation
```shell
npx hardhat compile
yarn compile
```
## Testing
## Testing with Hardhat
```shell
npx hardhat test
yarn test:hardhat
```
## Testing with Foundry
```shell
yarn test:foundry
```
## Deploying
@ -19,15 +34,19 @@ npx hardhat test
- To deploy on local node, first start the local node and then run the deploy script
```shell
npx hardhat node
npx hardhat run --network localhost scripts/deploy.ts
yarn node
npx deploy:localhost
```
- To deploy to an target network (like Goerli), use the name as mentioned in the Hardhat config file.
- To deploy to an target network (like Sepolia), use the name as mentioned in the Hardhat config file.
```shell
npx hardhat run --network <your-network> scripts/deploy.js
yarn deploy:sepolia
```
## References
For more information, see https://hardhat.org/hardhat-runner/docs/guides/project-setup
For more information, see https://hardhat.org/hardhat-runner/docs/guides/project-setup
## License
Dual-licensed under MIT or Apache 2.0, refer to [LICENSE-MIT](LICENSE-MIT) or [LICENSE-APACHE](LICENSE-APACHE) for more information.

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contracts/PoseidonHasher.sol
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contracts/Rln.sol
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@ -1,95 +1,126 @@
// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;
import { IPoseidonHasher } from "./PoseidonHasher.sol";
import {IPoseidonHasher} from "./PoseidonHasher.sol";
contract RLN {
uint256 public immutable MEMBERSHIP_DEPOSIT;
uint256 public immutable DEPTH;
uint256 public immutable SET_SIZE;
uint256 public immutable MEMBERSHIP_DEPOSIT;
uint256 public immutable DEPTH;
uint256 public immutable SET_SIZE;
uint256 public pubkeyIndex = 0;
// This mapping is used to keep track of the public keys that have been registered
// with the stake
mapping(uint256 => uint256) public members;
uint256 public idCommitmentIndex;
mapping(uint256 => uint256) public stakedAmounts;
mapping(uint256 => bool) public members;
IPoseidonHasher public poseidonHasher;
IPoseidonHasher public poseidonHasher;
event MemberRegistered(uint256 pubkey, uint256 index);
event MemberWithdrawn(uint256 pubkey);
event MemberRegistered(uint256 idCommitment, uint256 index);
event MemberWithdrawn(uint256 idCommitment);
constructor(
uint256 membershipDeposit,
uint256 depth,
address _poseidonHasher
) {
MEMBERSHIP_DEPOSIT = membershipDeposit;
DEPTH = depth;
SET_SIZE = 1 << depth;
poseidonHasher = IPoseidonHasher(_poseidonHasher);
}
constructor(
uint256 membershipDeposit,
uint256 depth,
address _poseidonHasher
) {
MEMBERSHIP_DEPOSIT = membershipDeposit;
DEPTH = depth;
SET_SIZE = 1 << depth;
poseidonHasher = IPoseidonHasher(_poseidonHasher);
}
function register(uint256 pubkey) external payable {
require(members[pubkey] == 0, "RLN, register: pubkey already registered");
require(pubkeyIndex < SET_SIZE, "RLN, register: set is full");
require(msg.value == MEMBERSHIP_DEPOSIT, "RLN, register: membership deposit is not satisfied");
_register(pubkey);
}
function register(uint256 idCommitment) external payable {
require(
msg.value == MEMBERSHIP_DEPOSIT,
"RLN, register: membership deposit is not satisfied"
);
_register(idCommitment, msg.value);
}
function registerBatch(uint256[] calldata pubkeys) external payable {
uint256 pubkeylen = pubkeys.length;
require(pubkeyIndex + pubkeylen <= SET_SIZE, "RLN, registerBatch: set is full");
require(msg.value == MEMBERSHIP_DEPOSIT * pubkeylen, "RLN, registerBatch: membership deposit is not satisfied");
for (uint256 i = 0; i < pubkeylen; i++) {
_register(pubkeys[i]);
}
}
function registerBatch(uint256[] calldata idCommitments) external payable {
uint256 idCommitmentlen = idCommitments.length;
require(idCommitmentlen > 0, "RLN, registerBatch: batch size zero");
require(
idCommitmentIndex + idCommitmentlen <= SET_SIZE,
"RLN, registerBatch: set is full"
);
require(
msg.value == MEMBERSHIP_DEPOSIT * idCommitmentlen,
"RLN, registerBatch: membership deposit is not satisfied"
);
for (uint256 i = 0; i < idCommitmentlen; i++) {
_register(idCommitments[i], msg.value / idCommitmentlen);
}
}
function _register(uint256 pubkey) internal {
// Set the pubkey to the value of the tx
members[pubkey] = msg.value;
emit MemberRegistered(pubkey, pubkeyIndex);
pubkeyIndex += 1;
}
function _register(uint256 idCommitment, uint256 stake) internal {
require(
!members[idCommitment],
"RLN, _register: member already registered"
);
require(idCommitmentIndex < SET_SIZE, "RLN, register: set is full");
function withdrawBatch(
uint256[] calldata secrets,
address payable[] calldata receivers
) external {
uint256 batchSize = secrets.length;
require(batchSize != 0, "RLN, withdrawBatch: batch size zero");
require(batchSize == receivers.length, "RLN, withdrawBatch: batch size mismatch receivers");
for (uint256 i = 0; i < batchSize; i++) {
_withdraw(secrets[i], receivers[i]);
}
}
members[idCommitment] = true;
stakedAmounts[idCommitment] = stake;
function withdraw(
uint256 secret,
address payable receiver
) external {
_withdraw(secret, receiver);
}
emit MemberRegistered(idCommitment, idCommitmentIndex);
idCommitmentIndex += 1;
}
function _withdraw(
uint256 secret,
address payable receiver
) internal {
// derive public key
uint256 pubkey = hash(secret);
require(members[pubkey] != 0, "RLN, _withdraw: member doesn't exist");
require(receiver != address(0), "RLN, _withdraw: empty receiver address");
// refund deposit
(bool sent, bytes memory data) = receiver.call{value: members[pubkey]}("");
require(sent, "transfer failed");
function withdrawBatch(
uint256[] calldata secrets,
address payable[] calldata receivers
) external {
uint256 batchSize = secrets.length;
require(batchSize != 0, "RLN, withdrawBatch: batch size zero");
require(
batchSize == receivers.length,
"RLN, withdrawBatch: batch size mismatch receivers"
);
for (uint256 i = 0; i < batchSize; i++) {
_withdraw(secrets[i], receivers[i]);
}
}
// delete member only if refund is successful
members[pubkey] = 0;
function withdraw(uint256 secret, address payable receiver) external {
_withdraw(secret, receiver);
}
emit MemberWithdrawn(pubkey);
}
function _withdraw(uint256 secret, address payable receiver) internal {
require(
receiver != address(0),
"RLN, _withdraw: empty receiver address"
);
function hash(uint256 input) internal view returns (uint256) {
return poseidonHasher.hash(input);
}
}
require(
receiver != address(this),
"RLN, _withdraw: cannot withdraw to RLN"
);
// derive idCommitment
uint256 idCommitment = hash(secret);
// check if member is registered
require(members[idCommitment], "RLN, _withdraw: member not registered");
// check if member has stake
require(
stakedAmounts[idCommitment] != 0,
"RLN, _withdraw: member has no stake"
);
uint256 amountToTransfer = stakedAmounts[idCommitment];
// delete member
members[idCommitment] = false;
stakedAmounts[idCommitment] = 0;
// refund deposit
receiver.transfer(amountToTransfer);
emit MemberWithdrawn(idCommitment);
}
function hash(uint256 input) internal view returns (uint256) {
return poseidonHasher.hash(input);
}
}

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deploy/001_deploy_poseidon_hasher.ts Normal file
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import { HardhatRuntimeEnvironment } from "hardhat/types";
import { DeployFunction } from "hardhat-deploy/types";
const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
const { deployments, getUnnamedAccounts } = hre;
const { deploy } = deployments;
const [deployer] = await getUnnamedAccounts();
await deploy("PoseidonHasher", {
from: deployer,
log: true,
});
};
export default func;
func.tags = ["PoseidonHasher"];

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deploy/002_deploy_rln.ts Normal file
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@ -0,0 +1,21 @@
import { HardhatRuntimeEnvironment } from "hardhat/types";
import { DeployFunction } from "hardhat-deploy/types";
const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
const { deployments, getUnnamedAccounts } = hre;
const { deploy } = deployments;
const [deployer] = await getUnnamedAccounts();
const poseidonHasherAddress = (await deployments.get("PoseidonHasher"))
.address;
await deploy("RLN", {
from: deployer,
log: true,
args: [1000000000000000, 20, poseidonHasherAddress],
});
};
export default func;
func.tags = ["RLN"];
func.dependencies = ["PoseidonHasher"];

283
deployments/allDeployments.json Normal file
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{
"11155111": [
{
"name": "sepolia",
"chainId": "11155111",
"contracts": {
"PoseidonHasher": {
"address": "0xfa72Ce89D60d085B8FdB445fF6edC47475D58d1E",
"abi": [
{
"inputs": [
{
"internalType": "uint256",
"name": "input",
"type": "uint256"
}
],
"name": "hash",
"outputs": [
{
"internalType": "uint256",
"name": "result",
"type": "uint256"
}
],
"stateMutability": "pure",
"type": "function"
},
{
"inputs": [],
"name": "identity",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "pure",
"type": "function"
}
]
},
"RLN": {
"address": "0x4B11778822690DefA80934B3203C170ed6B5d317",
"abi": [
{
"inputs": [
{
"internalType": "uint256",
"name": "membershipDeposit",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "depth",
"type": "uint256"
},
{
"internalType": "address",
"name": "_poseidonHasher",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "uint256",
"name": "idCommitment",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "index",
"type": "uint256"
}
],
"name": "MemberRegistered",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "uint256",
"name": "idCommitment",
"type": "uint256"
}
],
"name": "MemberWithdrawn",
"type": "event"
},
{
"inputs": [],
"name": "DEPTH",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "MEMBERSHIP_DEPOSIT",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "SET_SIZE",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "idCommitmentIndex",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"name": "members",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "poseidonHasher",
"outputs": [
{
"internalType": "contract IPoseidonHasher",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "idCommitment",
"type": "uint256"
}
],
"name": "register",
"outputs": [],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256[]",
"name": "idCommitments",
"type": "uint256[]"
}
],
"name": "registerBatch",
"outputs": [],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"name": "stakedAmounts",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "secret",
"type": "uint256"
},
{
"internalType": "address payable",
"name": "receiver",
"type": "address"
}
],
"name": "withdraw",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "secret",
"type": "uint256"
}
],
"name": "withdraw",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256[]",
"name": "secrets",
"type": "uint256[]"
},
{
"internalType": "address payable[]",
"name": "receivers",
"type": "address[]"
}
],
"name": "withdrawBatch",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
}
]
}
}
}
]
}

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73
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deployments/sepolia/RLN.json Normal file
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deployments/sepolia/solcInputs/3d22925ef26b2c95bb2dc86b2f9e06ed.json Normal file
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foundry.toml Normal file
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[profile.default]
src = 'contracts'
out = 'out'
libs = ['node_modules', 'lib']
test = 'test'
cache_path = 'cache_forge'

59
hardhat.config.ts
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import * as dotenv from "dotenv";
import { HardhatUserConfig, task } from "hardhat/config";
import { HardhatUserConfig } from "hardhat/config";
import { NetworksUserConfig } from "hardhat/types";
import "@nomicfoundation/hardhat-foundry";
import "hardhat-deploy";
import "@nomiclabs/hardhat-etherscan";
import "@nomiclabs/hardhat-ethers";
import "@nomiclabs/hardhat-waffle";
import "hardhat-gas-reporter";
import "solidity-coverage";
dotenv.config();
const {GOERLI_URL,PRIVATE_KEY} = process.env;
const { SEPOLIA_URL, PRIVATE_KEY, ETHERSCAN_API_KEY } = process.env;
// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
const accounts = await hre.ethers.getSigners();
for (const account of accounts) {
console.log(account.address);
const getNetworkConfig = (): NetworksUserConfig | undefined => {
if (SEPOLIA_URL && PRIVATE_KEY) {
return {
sepolia: {
url: SEPOLIA_URL,
accounts: [PRIVATE_KEY],
forking: {
url: SEPOLIA_URL,
},
verify: {
etherscan: {
apiKey: ETHERSCAN_API_KEY,
apiUrl: "https://api-sepolia.etherscan.io",
},
},
},
localhost_integration: {
url: "http://localhost:8545",
},
};
}
});
return undefined;
};
// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more
const config: HardhatUserConfig = {
solidity: "0.8.15",
networks: {
goerli: {
url: GOERLI_URL,
accounts: [`${PRIVATE_KEY}`]
}
}
solidity: {
compilers: [
{
version: "0.8.15",
},
],
},
networks: getNetworkConfig(),
};
export default config;
export default config;

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Subproject commit 2b58ecbcf3dfde7a75959dc7b4eb3d0670278de6

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package.json
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{
"name": "hardhat-project",
"name": "rln-contract",
"license": "(MIT OR Apache-2.0)",
"scripts": {
"start": "hardhat node --export-all deployments/allDeployments.json",
"compile": "hardhat compile",
"test": "yarn test:foundry && yarn test:hardhat",
"test:verbose": "yarn test:foundry -vvv && yarn test:hardhat --verbose",
"test:hardhat": "hardhat test",
"test:hardhat:localhost": "yarn test:hardhat --network localhost",
"test:hardhat:sepolia": "yarn test:hardhat --network sepolia",
"test:foundry": "forge test",
"deploy": "hardhat deploy --export-all deployments/allDeployments.json --network",
"deploy:sepolia": "yarn deploy sepolia",
"deploy:localhost": "yarn deploy localhost",
"verify:sepolia": "hardhat --network sepolia etherscan-verify",
"coverage": "forge coverage --report lcov",
"fmt": "prettier --write \"**/*.{js,ts}\"",
"lint": "prettier --check \"**/*.{js,ts}\"",
"prepare": "husky install"
},
"devDependencies": {
"@nomiclabs/hardhat-ethers": "^2.0.6",
"@nomiclabs/hardhat-etherscan": "^3.1.0",
"@nomicfoundation/hardhat-foundry": "^1.0.0",
"@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers",
"@nomiclabs/hardhat-etherscan": "^3.1.7",
"@nomiclabs/hardhat-waffle": "^2.0.3",
"@types/chai": "^4.3.4",
"@types/mocha": "^9.1.1",
"@types/node": "^16.11.6",
"chai": "^4.3.6",
"ethereum-waffle": "^3.4.4",
"ethers": "^5.6.9",
"ethers": "^5.7.2",
"hardhat": "^2.9.9",
"hardhat-deploy": "0.11.20",
"hardhat-gas-reporter": "^1.0.8",
"solidity-coverage": "^0.7.21",
"husky": "^8.0.2",
"lint-staged": "^13.0.3",
"ts-node": "^10.8.1",
"typescript": "^4.7.4"
},
"dependencies": {
"dotenv": "^16.0.1"
},
"lint-staged": {
"**/*": [
"prettier --write --ignore-unknown"
]
}
}

37
scripts/deploy.ts
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// We require the Hardhat Runtime Environment explicitly here. This is optional
// but useful for running the script in a standalone fashion through `node <script>`.
//
// When running the script with `npx hardhat run <script>` you'll find the Hardhat
// Runtime Environment's members available in the global scope.
import { ethers } from "hardhat";
async function main() {
// Hardhat always runs the compile task when running scripts with its command
// line interface.
//
// If this script is run directly using `node` you may want to call compile
// manually to make sure everything is compiled
// await hre.run('compile');
// We get the contract to deploy
const PoseidonHasher = await ethers.getContractFactory("PoseidonHasher");
const poseidonHasher = await PoseidonHasher.deploy();
await poseidonHasher.deployed();
console.log("PoseidonHasher deployed to:", poseidonHasher.address);
const Rln = await ethers.getContractFactory("RLN");
const rln = await Rln.deploy(1000000000000000,20,poseidonHasher.address);
await rln.deployed();
console.log("Rln deployed to:", rln.address);
}
// We recommend this pattern to be able to use async/await everywhere
// and properly handle errors.
main().catch((error) => {
console.error(error);
process.exitCode = 1;
});

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test/PoseidonHasher.t.sol Normal file
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// SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.15;
import "../contracts/PoseidonHasher.sol";
import "forge-std/Test.sol";
contract PoseidonHasherTest is Test {
PoseidonHasher public poseidon;
/// @dev Setup the testing environment.
function setUp() public {
poseidon = new PoseidonHasher();
}
/// @dev Ensure that you can hash a value.
function testHasher(uint256 value) public {
assertEq(poseidon.hash(value), poseidon.hash(value));
}
function testHasher() public {
assertEq(
poseidon.hash(
19014214495641488759237505126948346942972912379615652741039992445865937985820
),
0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368
);
}
}

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// SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.15;
import "../contracts/PoseidonHasher.sol";
import "../contracts/Rln.sol";
import "forge-std/Test.sol";
import "forge-std/StdCheats.sol";
import "forge-std/console.sol";
contract ArrayUnique {
mapping(uint256 => bool) seen;
constructor(uint256[] memory arr) {
for (uint256 i = 0; i < arr.length; i++) {
require(!seen[arr[i]], "ArrayUnique: duplicate value");
seen[arr[i]] = true;
}
}
// contract in construction goes around the assumePayable() check
receive() external payable {}
}
function repeatElementIntoArray(
uint256 length,
address payable element
) pure returns (address payable[] memory) {
address payable[] memory arr = new address payable[](length);
for (uint256 i = 0; i < length; i++) {
arr[i] = element;
}
return arr;
}
contract RLNTest is Test {
using stdStorage for StdStorage;
RLN public rln;
PoseidonHasher public poseidon;
uint256 public constant MEMBERSHIP_DEPOSIT = 1000000000000000;
uint256 public constant DEPTH = 20;
uint256 public constant SET_SIZE = 1048576;
/// @dev Setup the testing environment.
function setUp() public {
poseidon = new PoseidonHasher();
rln = new RLN(MEMBERSHIP_DEPOSIT, DEPTH, address(poseidon));
}
function isUniqueArray(uint256[] memory arr) internal returns (bool) {
try new ArrayUnique(arr) {
return true;
} catch {
return false;
}
}
/// @dev Ensure that you can hash a value.
function test__Constants() public {
assertEq(rln.MEMBERSHIP_DEPOSIT(), MEMBERSHIP_DEPOSIT);
assertEq(rln.DEPTH(), DEPTH);
assertEq(rln.SET_SIZE(), SET_SIZE);
}
function test__ValidRegistration(uint256 idCommitment) public {
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
assertEq(rln.stakedAmounts(idCommitment), MEMBERSHIP_DEPOSIT);
assertEq(rln.members(idCommitment), true);
}
function test__InvalidRegistration__DuplicateCommitment(
uint256 idCommitment
) public {
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
assertEq(rln.stakedAmounts(idCommitment), MEMBERSHIP_DEPOSIT);
assertEq(rln.members(idCommitment), true);
// TODO: use custom errors instead of revert strings
vm.expectRevert(bytes("RLN, _register: member already registered"));
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
}
function test__InvalidRegistration__InsufficientDeposit(
uint256 idCommitment
) public {
vm.expectRevert(
bytes("RLN, register: membership deposit is not satisfied")
);
rln.register{value: MEMBERSHIP_DEPOSIT - 1}(idCommitment);
}
function test__InvalidRegistration__FullSet(
uint256 idCommitmentSeed
) public {
vm.assume(idCommitmentSeed < 2 ** 255 - SET_SIZE);
RLN tempRln = new RLN(
MEMBERSHIP_DEPOSIT,
2,
address(rln.poseidonHasher())
);
uint256 setSize = tempRln.SET_SIZE();
for (uint256 i = 0; i < setSize; i++) {
tempRln.register{value: MEMBERSHIP_DEPOSIT}(idCommitmentSeed + i);
}
assertEq(tempRln.idCommitmentIndex(), 4);
vm.expectRevert(bytes("RLN, register: set is full"));
tempRln.register{value: MEMBERSHIP_DEPOSIT}(idCommitmentSeed + setSize);
}
function test__ValidBatchRegistration(
uint256[] calldata idCommitments
) public {
// assume that the array is unique, otherwise it triggers
// a revert that has already been tested
vm.assume(isUniqueArray(idCommitments) && idCommitments.length > 0);
uint256 idCommitmentlen = idCommitments.length;
rln.registerBatch{value: MEMBERSHIP_DEPOSIT * idCommitmentlen}(
idCommitments
);
for (uint256 i = 0; i < idCommitmentlen; i++) {
assertEq(rln.stakedAmounts(idCommitments[i]), MEMBERSHIP_DEPOSIT);
assertEq(rln.members(idCommitments[i]), true);
}
}
function test__InvalidBatchRegistration__FullSet(
uint256 idCommitmentSeed
) public {
vm.assume(idCommitmentSeed < 2 ** 255 - SET_SIZE);
RLN tempRln = new RLN(MEMBERSHIP_DEPOSIT, 2, address(poseidon));
uint256 setSize = tempRln.SET_SIZE();
for (uint256 i = 0; i < setSize; i++) {
tempRln.register{value: MEMBERSHIP_DEPOSIT}(idCommitmentSeed + i);
}
assertEq(tempRln.idCommitmentIndex(), 4);
uint256[] memory idCommitments = new uint256[](1);
idCommitments[0] = idCommitmentSeed + setSize;
vm.expectRevert(bytes("RLN, registerBatch: set is full"));
tempRln.registerBatch{value: MEMBERSHIP_DEPOSIT}(idCommitments);
}
function test__InvalidBatchRegistration__EmptyBatch() public {
uint256[] memory idCommitments = new uint256[](0);
vm.expectRevert(bytes("RLN, registerBatch: batch size zero"));
rln.registerBatch{value: MEMBERSHIP_DEPOSIT}(idCommitments);
}
function test__InvalidBatchRegistration__InsufficientDeposit(
uint256[] calldata idCommitments
) public {
vm.assume(isUniqueArray(idCommitments) && idCommitments.length > 0);
uint256 idCommitmentlen = idCommitments.length;
vm.expectRevert(
bytes("RLN, registerBatch: membership deposit is not satisfied")
);
rln.registerBatch{value: MEMBERSHIP_DEPOSIT * idCommitmentlen - 1}(
idCommitments
);
}
function test__ValidWithdraw(
uint256 idSecretHash,
address payable to
) public {
// avoid precompiles, etc
// TODO: wrap both of these in a single function
assumePayable(to);
assumeNoPrecompiles(to);
vm.assume(to != address(0));
uint256 idCommitment = poseidon.hash(idSecretHash);
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
assertEq(rln.stakedAmounts(idCommitment), MEMBERSHIP_DEPOSIT);
uint256 balanceBefore = to.balance;
rln.withdraw(idSecretHash, to);
assertEq(rln.stakedAmounts(idCommitment), 0);
assertEq(rln.members(idCommitment), false);
assertEq(to.balance, balanceBefore + MEMBERSHIP_DEPOSIT);
}
function test__InvalidWithdraw__ToZeroAddress() public {
uint256 idSecretHash = 19014214495641488759237505126948346942972912379615652741039992445865937985820;
uint256 idCommitment = poseidon.hash(idSecretHash);
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
assertEq(rln.stakedAmounts(idCommitment), MEMBERSHIP_DEPOSIT);
vm.expectRevert(bytes("RLN, _withdraw: empty receiver address"));
rln.withdraw(idSecretHash, payable(address(0)));
}
function test__InvalidWithdraw__ToRlnAddress() public {
uint256 idSecretHash = 19014214495641488759237505126948346942972912379615652741039992445865937985820;
uint256 idCommitment = poseidon.hash(idSecretHash);
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
assertEq(rln.stakedAmounts(idCommitment), MEMBERSHIP_DEPOSIT);
vm.expectRevert(bytes("RLN, _withdraw: cannot withdraw to RLN"));
rln.withdraw(idSecretHash, payable(address(rln)));
}
function test__InvalidWithdraw__InvalidIdCommitment(
uint256 idCommitment
) public {
vm.expectRevert(bytes("RLN, _withdraw: member not registered"));
rln.withdraw(idCommitment, payable(address(this)));
}
// this shouldn't be possible, but just in case
function test__InvalidWithdraw__NoStake(
uint256 idSecretHash,
address payable to
) public {
// avoid precompiles, etc
assumePayable(to);
assumeNoPrecompiles(to);
vm.assume(to != address(0));
uint256 idCommitment = poseidon.hash(idSecretHash);
rln.register{value: MEMBERSHIP_DEPOSIT}(idCommitment);
assertEq(rln.stakedAmounts(idCommitment), MEMBERSHIP_DEPOSIT);
rln.withdraw(idSecretHash, to);
assertEq(rln.stakedAmounts(idCommitment), 0);
assertEq(rln.members(idCommitment), false);
// manually set members[idCommitment] to true using vm
stdstore
.target(address(rln))
.sig("members(uint256)")
.with_key(idCommitment)
.depth(0)
.checked_write(true);
vm.expectRevert(bytes("RLN, _withdraw: member has no stake"));
rln.withdraw(idSecretHash, to);
}
function test__ValidBatchWithdraw(
uint256[] calldata idSecretHashes,
address payable to
) public {
// avoid precompiles, etc
assumePayable(to);
assumeNoPrecompiles(to);
vm.assume(isUniqueArray(idSecretHashes) && idSecretHashes.length > 0);
vm.assume(to != address(0));
uint256 idCommitmentlen = idSecretHashes.length;
uint256[] memory idCommitments = new uint256[](idCommitmentlen);
for (uint256 i = 0; i < idCommitmentlen; i++) {
idCommitments[i] = poseidon.hash(idSecretHashes[i]);
}
rln.registerBatch{value: MEMBERSHIP_DEPOSIT * idCommitmentlen}(
idCommitments
);
for (uint256 i = 0; i < idCommitmentlen; i++) {
assertEq(rln.stakedAmounts(idCommitments[i]), MEMBERSHIP_DEPOSIT);
}
uint256 balanceBefore = to.balance;
rln.withdrawBatch(
idSecretHashes,
repeatElementIntoArray(idSecretHashes.length, to)
);
for (uint256 i = 0; i < idCommitmentlen; i++) {
assertEq(rln.stakedAmounts(idCommitments[i]), 0);
assertEq(rln.members(idCommitments[i]), false);
}
assertEq(
to.balance,
balanceBefore + MEMBERSHIP_DEPOSIT * idCommitmentlen
);
}
function test__InvalidBatchWithdraw__EmptyBatch() public {
uint256[] memory idSecretHashes = new uint256[](0);
address payable[] memory to = new address payable[](0);
vm.expectRevert(bytes("RLN, withdrawBatch: batch size zero"));
rln.withdrawBatch(idSecretHashes, to);
}
function test__InvalidBatchWithdraw__MismatchInputSize(
uint256[] calldata idSecretHashes,
address payable to
) public {
assumePayable(to);
assumeNoPrecompiles(to);
vm.assume(isUniqueArray(idSecretHashes) && idSecretHashes.length > 0);
vm.assume(to != address(0));
vm.expectRevert(
bytes("RLN, withdrawBatch: batch size mismatch receivers")
);
rln.withdrawBatch(
idSecretHashes,
repeatElementIntoArray(idSecretHashes.length + 1, to)
);
}
}

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test/index.ts
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import { assert, expect } from "chai";
import { ethers } from "hardhat";
describe("Rln", function () {
it("Deploying", async function () {
const PoseidonHasher = await ethers.getContractFactory("PoseidonHasher");
const poseidonHasher = await PoseidonHasher.deploy();
await poseidonHasher.deployed();
console.log("PoseidonHasher deployed to:", poseidonHasher.address);
const Rln = await ethers.getContractFactory("RLN");
const rln = await Rln.deploy(1000000000000000, 20, poseidonHasher.address);
await rln.deployed();
console.log("Rln deployed to:", rln.address);
const price = await rln.MEMBERSHIP_DEPOSIT();
// A valid pair of (id_secret, id_commitment) generated in rust
const id_secret = "0x2a09a9fd93c590c26b91effbb2499f07e8f7aa12e2b4940a3aed2411cb65e11c"
const id_commitment = "0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368"
const res_register = await rln.register(id_commitment, {value: price});
const txRegisterReceipt = await res_register.wait();
const reg_pubkey = txRegisterReceipt.events[0].args.pubkey;
const reg_tree_index = txRegisterReceipt.events[0].args.index;
// We ensure the registered id_commitment is the one we passed
assert(reg_pubkey.toHexString() === id_commitment, "registered commitment doesn't match passed commitment");
// We withdraw our id_commitment
const receiver_address = "0x000000000000000000000000000000000000dead";
const res_withdraw = await rln.withdraw(id_secret, receiver_address);
const txWithdrawReceipt = await res_withdraw.wait();
const wit_pubkey = txWithdrawReceipt.events[0].args.pubkey;
// We ensure the registered id_commitment is the one we passed and that the index is the same
assert(wit_pubkey.toHexString() === id_commitment, "withdraw commitment doesn't match registered commitment");
const pubkeyIndex = (await rln.pubkeyIndex()).toNumber();
assert(pubkeyIndex === 1, "pubkeyIndex should be 1");
});
it("should not allow dupe registrations", async () => {
const PoseidonHasher = await ethers.getContractFactory("PoseidonHasher");
const poseidonHasher = await PoseidonHasher.deploy();
await poseidonHasher.deployed();
console.log("PoseidonHasher deployed to:", poseidonHasher.address);
const Rln = await ethers.getContractFactory("RLN");
const rln = await Rln.deploy(1000000000000000, 20, poseidonHasher.address);
await rln.deployed();
console.log("Rln deployed to:", rln.address);
const price = await rln.MEMBERSHIP_DEPOSIT();
// A valid id_commitment generated in rust
const id_commitment = "0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368"
await rln.register(id_commitment, {value: price});
expect(rln.register(id_commitment, {value: price})).to.be.revertedWith("RLN, register: pubkey already registered");
});
});

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import { expect } from "chai";
import { ethers, deployments } from "hardhat";
describe("PoseidonHasher", () => {
beforeEach(async () => {
await deployments.fixture(["PoseidonHasher"]);
});
it("should hash correctly", async function () {
const poseidonHasher = await ethers.getContract("PoseidonHasher");
// We test hashing for a random number
const hash = await poseidonHasher.hash(
"19014214495641488759237505126948346942972912379615652741039992445865937985820"
);
expect(hash._hex).to.eql(
"0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368"
);
});
});

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test/poseidon.ts
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import { expect } from "chai";
import { ethers } from "hardhat";
describe("Rln", function () {
it("Deploying", async function () {
const PoseidonHasher = await ethers.getContractFactory("PoseidonHasher");
const poseidonHasher = await PoseidonHasher.deploy();
await poseidonHasher.deployed();
console.log("PoseidonHasher deployed to:", poseidonHasher.address);
// We test hashing for a random number
const hash = await poseidonHasher.hash("19014214495641488759237505126948346942972912379615652741039992445865937985820");
console.log("Hash:", hash);
//Expect 0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368
});
});

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@ -0,0 +1,89 @@
import { expect } from "chai";
import { ethers, deployments } from "hardhat";
describe("RLN", () => {
beforeEach(async () => {
await deployments.fixture(["RLN"]);
});
it("should register new memberships", async () => {
const rln = await ethers.getContract("RLN", ethers.provider.getSigner(0));
const price = await rln.MEMBERSHIP_DEPOSIT();
// A valid pair of (id_secret, id_commitment) generated in rust
const idCommitment =
"0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368";
const registerTx = await rln["register(uint256)"](idCommitment, {
value: price,
});
const txRegisterReceipt = await registerTx.wait();
const pubkey = txRegisterReceipt.events[0].args.idCommitment;
// We ensure the registered id_commitment is the one we passed
expect(
pubkey.toHexString() === idCommitment,
"registered commitment doesn't match passed commitment"
);
});
it("should withdraw membership", async () => {
const rln = await ethers.getContract("RLN", ethers.provider.getSigner(0));
const price = await rln.MEMBERSHIP_DEPOSIT();
// A valid pair of (id_secret, id_commitment) generated in rust
const idSecret =
"0x2a09a9fd93c590c26b91effbb2499f07e8f7aa12e2b4940a3aed2411cb65e11c";
const idCommitment =
"0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368";
const registerTx = await rln["register(uint256)"](idCommitment, {
value: price,
});
await registerTx.wait();
// We withdraw our id_commitment
const receiverAddress = "0x000000000000000000000000000000000000dead";
const withdrawTx = await rln["withdraw(uint256,address)"](
idSecret,
receiverAddress
);
const txWithdrawReceipt = await withdrawTx.wait();
const withdrawalPk = txWithdrawReceipt.events[0].args.idCommitment;
// We ensure the registered id_commitment is the one we passed and that the index is the same
expect(
withdrawalPk.toHexString() === idCommitment,
"withdraw commitment doesn't match registered commitment"
);
});
it("should not allow multiple registrations with same pubkey", async () => {
const rln = await ethers.getContract("RLN", ethers.provider.getSigner(0));
const price = await rln.MEMBERSHIP_DEPOSIT();
// A valid pair of (id_secret, id_commitment) generated in rust
const idCommitment =
"0x0c3ac305f6a4fe9bfeb3eba978bc876e2a99208b8b56c80160cfb54ba8f02368";
const registerTx = await rln["register(uint256)"](idCommitment, {
value: price,
});
await registerTx.wait();
// Send the same tx again
const registerTx2 = rln["register(uint256)"](idCommitment, {
value: price,
});
await expect(registerTx2).to.be.revertedWith(
"RLN, _register: member already registered"
);
});
});

13
tsconfig.json
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@ -7,6 +7,13 @@
"outDir": "dist",
"declaration": true
},
"include": ["./scripts", "./test", "./typechain"],
"files": ["./hardhat.config.ts"]
}
"include": [
"./scripts",
"./test",
"./typechain",
"deploy"
],
"files": [
"./hardhat.config.ts"
]
}

9297
yarn.lock Normal file
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