eth-signature-verifier/dist/index.js

Minimal Ethereum signature verifier supporting EIP-712, EIP-191, and eth_sign. No ethers.js or web3.js.

import { hashPersonalMessage, recoverAddress, hashTypedData } from './utils.js';
// Verifies an Ethereum signature created with personal_sign or eth_sign
export function verifyMessage(address, message, signature) {
    try {
        const msgHash = hashPersonalMessage(message);
        const recovered = recoverAddress(msgHash, signature);
        return address.toLowerCase() === recovered.toLowerCase();
    }
    catch {
        return false;
    }
}
// Verifies an EIP-712 typed data signature 
export function verifyTypedData(address, signature, domain, types, value) {
    try {
        const digest = hashTypedData(domain, types, value);
        const recovered = recoverAddress(digest, signature);
        return address.toLowerCase() === recovered.toLowerCase();
    }
    catch {
        return false;
    }
}