Getting started

CheckNSignatures is a Solidity library that can be installed in different ways. Below, you will find instructions for using it together with Foundry.

Installation

Using a package manager

npm i https://github.com/rhinestonewtf/checknsignatures

Using git submodules

forge install rhinestonewtf/checknsignatures

Quick Start

In a contract, you can use the CheckNSignatures library to verify multiple signatures:

import { CheckSignatures } from "checknsignatures/CheckNSignatures.sol";
 
contract Example {
    using CheckSignatures for bytes32;
 
   function verify(bytes32 hash, bytes memory signatures) external view returns (bool) {
        // Determine the number of required signatures
        uint256 requiredSignatures = 2;
 
        // Recover the signers
        address[] memory recoveredSigners = hash.recoverNSignatures(signatures, requiredSignatures);
 
        // Check if the signers are the expected ones
        // ...
    }
}

Overview recoverNSignatures