Python Text Encryptor & Decryptor

A simple, command-line based encryption and decryption tool built with Python.

Features

• Encrypt: Converts plain text into cipher text using a randomly generated character key.
• Decrypt: Reverses the cipher text back to the original message.
• CLI Interface: Simple text-based menu for easy interaction.
• Modular Code: Refactored into separate functions for clear logic

Usage

1. Run the script using Python: python main.py
2. Follow the on-screen prompts:
   • Press E to encrypt a message.
   • Press D to decrypt a message.
   • Press Q to safely exit the program.

Planned Updates

• Implement Dictionary data structures to improve character lookup performance from O(N) to O(1).
• Add functionality to export and import the encryption key (e.g., to a .txt or .json file) so messages can be decrypted across different sessions.