File Encryption and Decryption Tool

Overview

This project is a file encryption and decryption tool with a graphical user interface (GUI) built using Tkinter and enhanced with drag-and-drop functionality (TkinterDnD2). It allows users to securely encrypt and decrypt .txt files using the cryptography library’s Fernet symmetric encryption.

Key Features

1. Drag-and-Drop File Selection: Users can easily drag and drop .txt files onto the GUI to select them for encryption or decryption.
2. Encryption:
   • Generates a unique encryption key using Fernet.
   • Encrypts the content of the selected file, replacing the original text with the encrypted content.
   • Displays the encryption key for the user to save (required for decryption).
3. Decryption:
   • Users can input the saved encryption key to decrypt the selected file.
   • Restores the original file content by replacing the encrypted text with the decrypted text.
4. Reset Functionality: Clears the file and encryption key fields to reset the interface.
5. Intuitive GUI:
   • Listbox for file selection and content display.
   • Text box for displaying and inputting the encryption key.
   • Buttons for encrypting, decrypting, and resetting the interface.

Technologies Used

• Python: Core programming language.
• Tkinter: For building the graphical user interface.
• TkinterDnD2: For adding drag-and-drop file functionality.
• Cryptography (Fernet): For secure file encryption and decryption.

Installation

To run this tool on your local machine, follow these steps:

1. Clone the repository:

   git clone https://github.com/yourusername/encryption-tool.git

2. Navigate to the project directory:

   cd encryption-tool

3. Install the required dependencies:

   pip install cryptography tk TkinterDnD2

4. Run the program:

   python main.py

Usage

• Encrypt a File: Drag a .txt file onto the interface and click the "Encrypt" button. Save the encryption key displayed in the text box.
• Decrypt a File: Drag the encrypted .txt file, input the saved encryption key, and click the "Decrypt" button.
• Reset: Click the "Reset" button to clear the file selection and encryption key fields.

---