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🔐 PassGuard - Hackathon Presentation

Team: Guneet, Daksh, Arjun

🎯 Quick Pitch (30 seconds)

PassGuard is a secure, local-first password manager with browser autofill. Unlike cloud-based solutions that get breached, PassGuard keeps your passwords encrypted on YOUR device with military-grade AES-256-GCM encryption. One-click autofill, breach detection, and secure vault sharing - all without ever touching the cloud.

🔐 The Problem

  • 70% of data breaches happen due to weak/reused passwords
  • Average person has 100+ accounts to manage
  • Cloud password managers get breached (LastPass, etc.)
  • Browser built-in managers store passwords unencrypted

✨ Our Solution

Core Features

  1. Military-Grade Encryption: AES-256-GCM + Argon2id
  2. Browser Autofill: One-click login on any website
  3. Security Audit: Breach detection + weak password alerts
  4. Vault Sharing: RSA-4096 encrypted sharing
  5. 100% Local: Your passwords NEVER leave your device

🛠️ Tech Stack

Backend (Python 3.13)

  • CustomTkinter 5.2.1 - Modern dark-themed UI framework
  • Flask 3.0.0 - Local API server for browser extension
  • Flask-CORS 4.0.0 - Cross-origin resource sharing

Security & Cryptography

  • Argon2-cffi 23.1.0 - Memory-hard key derivation (KDF)
  • PyCryptodome 3.20.0 - AES-256-GCM encryption
  • Cryptography 41.0.7 - RSA-4096, Fernet encryption

System Integration

  • Pystray 0.19.5 - System tray integration
  • Pillow 10.1.0 - Icon rendering
  • Pyperclip 1.8.2 - Secure clipboard management

Features

  • ReportLab 4.0.7 - PDF export generation
  • Requests 2.31.0 - HaveIBeenPwned API integration

Browser Extension

  • JavaScript (ES6+) - Extension logic
  • Chrome Extension API - Manifest V3
  • HTML5 + CSS3 - Popup UI

🎬 Demo Flow (See VIDEO_SCRIPT.md)

  1. Create vault with strong password
  2. Add credentials (GitHub, Gmail, etc.)
  3. Install browser extension
  4. One-click autofill demonstration
  5. Security audit showing breach detection

🏆 Why PassGuard Wins

Feature PassGuard LastPass Browser
Local Storage ✅ ❌ ❌
Open Source ✅ ❌ ❌
No Cloud Risk ✅ ❌ ❌
Free Forever ✅ Limited ✅
Breach Detection ✅ ✅ ❌

📞 Links

  • GitHub: [Your Repo]
  • Video: [Demo Video]
  • Slides: [Presentation]

PassGuard: Your Passwords, Truly Secure 🔐

For detailed video script, see VIDEO_SCRIPT.md