GateMate
The Challenge & Solution
Gated residential estates across Nigerian urban centres face security bottlenecks, unauthorized entry, and paper-based visitor tracking. GateMate modernizes physical access with cryptographically verifiable QR passes, automated barrier gate triggers, and local-first offline verification.
System Architecture
Built with distributed verification nodes. Gate tablets scan passes and validate signatures locally when network connectivity drops, syncing logs securely to cloud infrastructure once back online.
Technical Milestones
- Operating reliably through intermittent 4G/Wi-Fi drops at estate gates in Abuja.
- Preventing replay attacks by binding visitor QR tokens to 15-minute rolling time windows.
- Instant resident notification via push and WhatsApp webhooks upon visitor check-in.
