Project: Encrypter-Decrypter

Overview

This project is a simple Text Encryption and Decryption tool built using Python's Tkinter library. The application provides a graphical user interface (GUI) that allows users to encrypt and decrypt text messages using Base64 encoding. The user must enter a secret key to perform these actions, ensuring that only authorized individuals can view the original or encrypted messages.

Features

• Text Encryption: Converts a user inputted text message into an encrypted format using Base64 encoding.
• Text Decryption: Converts an encrypted message back to its original form, provided the correct secret key is entered.
• Password Protection: Ensures that encryption and decryption can only be performed with the correct password.
• Reset Functionality: Allows users to clear the text input and reset the secret key.

Requirements

• Python 3.x
• Tkinter (Python's standard GUI library, typically included with Python)

How It Works

1. Main Screen:

   • The application starts with a main screen where the user can enter the text they want to encrypt or decrypt.
   • The user is prompted to enter a secret key, which is required for both encryption and decryption.

2. Encryption:

   • When the user enters text and the correct secret key (default: 6969), the text is converted into a Base64 encoded string.
   • The encoded text is displayed in a new window labeled "ENCRYPT".

3. Decryption:

   • Similarly, if the user enters an encoded text and the correct secret key, the application decodes the message and displays the original text in a new window labeled "DECRYPT".

4. Reset:

   • The user can clear the current text and reset the secret key entry by clicking the "RESET" button.

Code Explanation

Import Statements

from tkinter import *
from tkinter import messagebox
import base64
import os

• Tkinter: Used for creating the GUI.
• messagebox: Used for displaying pop-up messages.
• base64: Used for encoding and decoding the text.
• os: Not used in the provided code, but typically used for file or OS operations.

Main Functions

• decrypt():

  • Decodes a Base64 encoded message if the correct password is provided.
  • Displays the decoded message in a new window.

• encrypt():

  • Encodes a plain text message into Base64 format if the correct password is provided.
  • Displays the encoded message in a new window.

• main_screen():

  • Sets up the main GUI window where users can input text, enter the secret key, and access encryption and decryption functionalities.
  • Also includes a reset button to clear inputs.

Usage

1. Running the Application:

   • Ensure Python is installed on your system.
   • Run the Python script. The main window will appear.

2. Encrypting Text:

   • Enter the text you want to encrypt in the first text box.
   • Enter the secret key (default: 6969).
   • Click the "ENCRYPT" button to see the encoded message.

3. Decrypting Text:

   • Enter the Base64 encoded text in the first text box.
   • Enter the secret key (default: 6969).
   • Click the "DECRYPT" button to see the original message.

4. Resetting:

   • To clear the text and reset the key, click the "RESET" button.

Customization

• Change Password:

  • Modify the password variable in the encrypt() and decrypt() functions to change the secret key from 1234 to any desired value.

• GUI Design:

  • The Tkinter library offers flexibility in modifying the layout, colors, fonts, and sizes used in the GUI.

Notes

• Security: This tool is not intended for high-security encryption. Base64 encoding is a reversible process and should not be used for secure data encryption.
• Password Protection: The password is hardcoded for simplicity but can be modified to use a more secure method of authentication.

Conclusion

This project is a basic implementation of text encryption and decryption using Python and Tkinter. It provides a foundational understanding of how encoding and decoding work, as well as how to create a simple GUI application.