FastKey – Biometric Authentication System

FastKey is a cross-platform, passwordless authentication system built on FIDO2/WebAuthn standards. It provides biometric authentication (fingerprint, Face ID, hardware keys) with end-to-end encryption, while ensuring biometric data never leaves the device.

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Why FastKey?

• Standards-First – Built on FIDO2/WebAuthn (no vendor lock-in, enterprise-ready).
• Device-Centric Security – Zero-knowledge design; biometric templates never transmitted or stored centrally.
• Cross-Platform – Flutter for the app, Next.js for web, Node.js backend.
• Operationally Practical – Docker support, structured logging, production-ready APIs.

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Features

Security

• ✅ FIDO2/WebAuthn compliance
• ✅ Biometric authentication (Face ID, fingerprint, hardware keys)
• ✅ End-to-end encryption with certificate pinning
• ✅ Session revocation & audit logging
• ✅ Hardware Security Module (HSM) integration

Developer Experience

• Clean, modular architecture
• REST + real-time APIs (Socket.io)
• Detailed logs for observability and debugging

Platform Support

• Mobile: Flutter app with push notifications, and lightweight background footprint
• Web: Next.js dashboard with admin panel, user/device management, and real-time monitoring

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Use Cases

• Enterprise SSO – Replace internal passwords with secure biometric authentication.
• Banking/Finance – Customer authentication with regulatory-grade security.
• Healthcare – HIPAA-compliant access control.
• E-commerce – Passwordless checkout flows.
• Personal projects – Simple, secure authentication drop-in.

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Quick Start

Requirements

• Flutter SDK ≥ 3.0.0
• Node.js ≥ 18.0.0
• npm or yarn

Setup

# Clone
git clone https://github.com/yourusername/FastKey.git
cd FastKey

# Backend
cd backend
npm install
npm start

# Web frontend
cd ../frontend
npm install
npm run dev

# Mobile
cd ../app
flutter pub get
flutter run

Production

# Backend
cd backend
npm run build && npm run start:prod

# Frontend
cd frontend
npm run build && npm start

# Mobile (APK)
cd app
flutter build apk --release

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API Overview

Authentication

POST /api/auth/register          # Register new user
POST /api/auth/login             # Initiate login flow
GET  /api/auth/status/:sessionId # Check login status
POST /api/auth/verify            # Verify credential

User Management

GET    /api/users                # List users
GET    /api/users/:id            # Get user details
PUT    /api/users/:id            # Update user
DELETE /api/users/:id            # Delete user

Security

GET  /api/security/logs          # Audit logs
POST /api/security/revoke        # Revoke sessions
GET  /api/security/devices       # List registered devices

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License

MIT License – see LICENSE for details.

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Built by Satwik Singh :)