Enterprise Canteen Hub: Contactless Logistics

The Challenge

Corporate dining facilities often struggle with slow checkout lines, subscription fraud, and manual attendance tracking. Furthermore, the introduction of the Digital Personal Data Protection (DPDP) Act 2023 in India set a high bar for how biometric data must be handled.

The Solution

We built the Enterprise Canteen Hub, a Next.js-based SaaS platform that prioritizes speed and security through advanced biometrics and secure QR logic.

1. DPDP-Compliant Face Recognition

We implemented a browser-based biometric pipeline that uses face detection and feature extraction. Crucially, we never store actual images. Instead, we store encrypted mathematical embeddings (vectors), which are isolated and protected according to GDPR and DPDP standards.

2. Anti-Spoofing & Liveness Detection

To prevent unauthorized access via photos or videos, our AI pipeline includes multi-layer liveness detection, ensuring that only physical users can authenticate.

3. Secure QR Versioning

For users who prefer not to use biometrics, we developed a secure QR system using HMAC-SHA256 signatures and a versioning system that prevents replay attacks and ensures offline validity.

Technical Stack

• Frontend: Next.js 15, Tailwind CSS, React Query
• Backend: Node.js, PostgreSQL (Prisma)
• AI Pipeline: Modern browser-based ML algorithms
• Security: Enterprise-grade encryption, HMAC-SHA256

Results

• Contactless Operations: 100% reduction in physical card requirements.
• Compliance First: Full audit trails for biometric consent and withdrawal.
• Velocity: Average transaction time reduced from 45s to <5s.