Caesar Cipher Encryption/Decryption Script

This Python script implements the Caesar cipher, a classic encryption technique that shifts each letter in the text by a fixed number of positions down the alphabet. The script allows users to encrypt a message with a specified shift length or decrypt it by providing the original message and the negative shift length.

Prerequisites

Before running the script, make sure you have Python installed on your machine. Additionally, install the colorama module by executing:

pip install colorama

How to Use

1. Clone the Repository:

   git clone https://github.com/TheODDYSEY/Ceaser-Cipher-Python

2. Navigate to the Project Directory:

   cd your-repository

3. Run the Script:

   Execute the script in your terminal.

   python caesar_cipher.py

4. Enter Text and Shift Length:

   The script will prompt you to enter the text or message you want to encrypt or decrypt and specify the shift length (key).

5. View Encrypted/Decrypted Text:

   The script will display the result based on your input.

Example

Suppose you want to encrypt the message "Hello, World!" with a shift length of 3. The script will output:

[?] Please Enter your text/message: Hello, World!
[?] Please specify the shift length: 3
[+] Hello, World! has been encrypted as [encrypted_text]

To decrypt the message, you can input the encrypted text and use a negative shift length.

Note

Ensure that you provide a valid shift length (between 0 and 25). The script will display an error message and exit if an invalid key is provided.