This repository contains a Python implementation of the Vigenère Cipher, a classic cryptographic technique for encoding and decoding messages. This program is optimized and implemented without relying on external libraries, offering a clean and straightforward approach to encryption and decryption.
- Encrypt messages using the Vigenère Cipher algorithm.
- Decrypt messages to retrieve the original text.
- Custom key support for personalized encryption.
- Simple and efficient implementation in Python.
The Vigenère Cipher is a polyalphabetic substitution cipher that uses a keyword to encrypt a message. Each letter in the plaintext is shifted by a value determined by the corresponding letter in the key, creating a more secure encryption than simple substitution ciphers.
- Python 3.x
No additional libraries or dependencies are required.
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Clone the repository:
git clone https://github.com/Darshan-KC/Python-Vigenere-Cipher.git cd Python-Vigenere-Cipher -
Ensure you have Python 3.x installed.
Run the program using Python:
python vigenere_cipher.pyYou can follow the prompts to either encrypt or decrypt a message.
Input:
Enter plaintext: HELLO
Enter key: KEY
Output:
Encrypted text: RIJVS
Input:
Enter ciphertext: RIJVS
Enter key: KEY
Output:
Decrypted text: HELLO
Contributions are welcome! If you have ideas for improvements or new features, feel free to fork the repository, make changes, and submit a pull request.
This project is licensed under the MIT License. See the LICENSE file for details.