ZeroProxy: Smart Attendance & Edge-AI Ecosystem

ZeroProxy is an end-to-end, high-concurrency hardware-software ecosystem designed as a solo initiative to eliminate proxy attendance in large institutional environments. By combining discrete technologies—including edge computing, local networking, cross-platform mobile architecture, and localized machine learning—the system drastically optimizes operational workflows.

⚡ The Impact

• Speed Efficiency: Processes authentication for a 150-student class in roughly 3 minutes, replacing traditional fingerprint scanning methods that average up to 30 minutes.
• Gamified Anti-Spoofing: Defeats photo and video attacks using interactive liveness detection. Users control a "Fruit Catcher" game via real-time head tracking, while a background AI model continuously validates their biometric identity.
• Smart Resource Scaling: Offloads heavy biometric vectorization to client edge-devices, allowing a low-powered, cost-effective Raspberry Pi to seamlessly handle massive concurrent request spikes without server-side performance degradation.

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📂 System Component Directory

The complete ZeroProxy ecosystem is split into three distinct, specialized codebases built with Feature-First Architecture. Navigate to the respective repositories below to view the source code and localized documentation:

• ZeroProxy Backend Server

  • Core Tech: Node.js, PostgreSQL (BCNF Normalized), Redis Cache, Bash Shell Scripting, Nodemailer (SMTP).
  • Role: The local network gateway on a Raspberry Pi. It manages strict database states, loads active sessions into lightning-fast Redis cache, handles real-time Socket.IO session tracking, and automates daily university cloud syncing via the Google Sheets API.

• ZeroProxy Student Mobile App

  • Core Tech: Flutter, Dart, TFLite (FaceNet model), Google ML Kit, Cryptography (SHA-256).
  • Role: Enforces physical environment checks (Wi-Fi, Bluetooth, Mobile Data) on client hardware. Executes the gamified liveness detection loop, generating 512-dimensional vector face embeddings on-device to continuously verify identity via Cosine Similarity, and signs requests with an anti-spoofing cryptographic BSSID signature.

• ZeroProxy Admin Mobile App

  • Core Tech: Flutter, Dart, Secure HTTP Client Pinning, Native File Dialogs.
  • Role: Help Attendance Staff to register students (triggering automated credential emails), start attendance sessions, monitor real-time attendance marking, and export the day's attendance directly to Google Sheets with a single click.

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To Watch The Demo Click Here.

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🛠️ Integrated Systems Architecture

ZeroProxy derives its value by integrating totally different components that cannot solve the problem on their own, transforming them into a unified, high-security problem-solving engine:

graph TD
    Cloud["University Wi-Fi Network<br>(Cloud Data Sync Pipeline)"]
    Pi["Local Raspberry Pi Server"]
    DB[("PostgreSQL & Redis")]
    Router["External Wi-Fi Router<br>(Handling High Network Traffic)"]
    App["Student App<br>(Edge-AI Embedding)"]
    Auth{"Authenticated Attendance"}

    Cloud <-->|"wlan0 Client Interface"| Pi
    Pi <-->|"boyce-codd database state"| DB
    Pi <-->|"eth0 Static LAN Gate: 172.16.0.1"| Router
    Router <-->|"Isolated Hotspot Broadcast"| App
    App -->|"Encrypted SHA256 Signature"| Auth

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