Prodigy Infotech

Caesar Cipher Implementation

This repository contains a Python implementation of the Caesar Cipher algorithm. The Caesar Cipher is a substitution cipher that shifts each letter in the plaintext by a fixed number of places down the alphabet.

Task Overview

The project includes a Python program that can:

• Encrypt: Convert plaintext into ciphertext by shifting each letter by a specified value.
• Decrypt: Revert ciphertext back into plaintext using the same shift value.

Features

• Encryption: Allows users to input a message and a shift value to produce the encrypted text.
• Decryption: Allows users to input the encrypted text and shift value to retrieve the original message.
• User Interaction: A simple menu-driven interface to choose between encryption, decryption, or exit.

Usage

1. Clone the repository:

   git clone https://github.com/Maharkk/PRODIGY_CS_01.git
   cd prodigy-infotech

2. Run the program:

   python caesar_cipher.py

3. Follow the prompts to either encrypt or decrypt a message.

Code Explanation

• Encrypt Function: Shifts each letter of the input text by the given shift value, wrapping around the alphabet if necessary.
• Decrypt Function: Reverses the shift operation to return the original text.