Qencrypt
Secure File Vault

Project Stack
  • Flutter
    100%
  • Dart
    100%
  • Riverpod
    100%
  • Drift (SQLite)
    100%
  • PointyCastle + Cryptography
    100%
  • liboqs (FFI)
    100%
  • iOS In-App Purchases
    100%
Description

Built and launched Qencrypt - a Flutter-based secure file vault app focused on privacy, performance, and quantum-safe encryption.

Qencrypt helps users encrypt, organize, and back up sensitive files locally with a security architecture built for both current cyber threats and the future of quantum computing.

What I built:

  • Post-quantum cryptography workflow using Kyber512 + AES-256-GCM.
  • Hybrid encryption model with classical symmetric encryption and quantum-safe key exchange.
  • Local encrypted vault for documents, photos, videos, and sensitive files.
  • Secure folder-based organization and controlled sharing workflows.
  • Vault backup/restore pipeline with native zip/unzip integration.
  • Premium subscription model with feature gating for free vs paid usage.

This project helped me deepen practical experience in mobile app development, applied cryptography, and post-quantum security engineering.

If you are building in cybersecurity, privacy tech, or Flutter, I would love to connect and exchange ideas.

hashtags: #Qencrypt #Flutter #Dart #MobileAppDevelopment #CyberSecurity #Encryption #QuantumEncryption #PostQuantumCryptography #Kyber #DataPrivacy #SecureStorage #iOSDevelopment #SoftwareEngineering #TechProjects

Details