Passkey Authentication Demo

A Next.js application demonstrating passkey step-up authentication with Authsignal.

Features

• Passkey Enrollment: Register WebAuthn/FIDO2 authenticators
• Passkey Authentication: Secure login with biometrics or security keys
• Transaction Verification: Step-up authentication for high-value transactions
• Enrollment Status: Check if users have passkeys enrolled

Getting Started

1. Install dependencies:

   pnpm install

2. Set up environment variables:

   cp .env.example .env.local
   # Add your Authsignal API credentials

3. Run the development server:

   pnpm dev

4. Open http://localhost:3000

Demo Credentials

• Email: demo@example.com
• Password: password123

API Endpoints

• POST /api/passkey/check-enrollment - Check if user has passkeys
• POST /api/passkey/enroll - Start passkey enrollment
• POST /api/passkey/validate - Validate passkey challenge
• POST /api/passkey/verify-transaction - Verify high-value transactions

Security

All endpoints require authentication and use server-side user identification to prevent user impersonation attacks.