Sign-In with Ethereum (SIWE) dApp

A simple but secure full-stack application that demonstrates how to authenticate a user with their Ethereum wallet instead of a traditional password, following the EIP-4361 standard.

Features

• Secure Authentication: Uses a message-signing flow to verify wallet ownership.
• Front-end: A simple HTML/CSS/JS page to handle user interaction.
• Back-end: A lightweight Node.js/Express server to generate a nonce and verify the signature.

Setup

1. Clone & Install:

   git clone <your-repo-url>
   cd <your-repo-name>
   npm install express ethers siwe cors

2. Run the Server:
   • In your terminal, start the backend server:

   node server.js

3. Open the dApp:
   • Open the index.html file (located in the public folder) in your web browser.