CryptoGuard 🔐

Advanced File Encryption System
Secure cloud file storage with AES encryption and integrity verification.

🌐 Live Demo: https://cryptoguardapplication.onrender.com/home

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📦 Tech Stack

• Backend: .NET 9 (ASP.NET Core Web API)
• Frontend: React 19 + TypeScript + Redux Toolkit
• Database: MySQL (Clever Cloud)
• Cloud Storage: AWS S3
• Security: AES encryption, SHA-256 hashing, reCAPTCHA v2
• Deployment: Render (Client + API)

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🔐 Key Features

• 🔒 End-to-end encrypted file upload/download
• 🔑 Server-side AES encryption with IV generation
• 🧮 SHA-256 hash integrity verification
• ☁️ Encrypted file storage on S3 (no presigned URLs)
• 👥 Role-based access control
• 🛡️ CAPTCHA login protection
• 🧱 Clean Architecture (repository pattern, service layers)

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🧪 Local Development Setup

1. Clone the Repository

git clone https://github.com/Shoshana5370/CryptoGuard.git
cd CryptoGuard