How I Designed an Anti-Proxy Attendance System Using Dynamic QR Authentication

Short summary

Patel shows how to prevent QR code attendance fraud by making QR codes function as short-lived tokens (expiring in 11 seconds) with server-side validation instead of trusting client-side images. The key insight: security emerges from multiple layers—dynamic generation, server-side control, short lifespans—working together. These design patterns apply broadly to authentication systems where real-world usability and security must coexist.

• •Dynamic QR codes expire in 11 seconds to prevent photo-forwarding exploits
• •Server-side validation ensures clients cannot manipulate attendance records
• •Security through layered decisions, not single features

Generated with AI, which can make mistakes.