Audio Encryption and Decryption System

A Flask-based web application that allows users to encrypt and decrypt audio files using advanced cryptographic algorithms like AES and ChaCha20. The application also implements ECDH (Elliptic Curve Diffie-Hellman) for key exchange and chaotic maps for enhanced security.

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Features

• User Authentication: Secure login system to access encryption and decryption functionalities.
• Audio File Encryption: Upload an .mp3 file, and the system encrypts it using AES and ChaCha20.
• Audio File Decryption: Decrypt previously encrypted files back into .mp3 format.
• Elliptic Curve Cryptography: Uses ECDH for secure symmetric key generation.
• Chaotic Key Derivation: Adds an extra layer of security by deriving chaotic keys.
• Secure File Handling: Files are securely saved in specific folders, ensuring privacy.
• Downloadable Output: Users can download encrypted or decrypted files directly.

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Technologies Used

• Backend: Flask
• Cryptography: Python's cryptography library for AES, ChaCha20, and ECDH implementations
• Frontend: HTML and Flask templates
• File Management: werkzeug for secure file uploads
• Session Management: Flask's built-in session handling

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