CaesarCipher

This Python script implements a simple Caesar cipher for encoding and decoding text.

How it works

The Caesar cipher is a substitution cipher where each letter in the plaintext is shifted a certain number of positions down the alphabet.

• Encoding: Shifts each letter in the input text by the specified shift amount.
• Decoding: Reverses the encoding process by shifting each letter back by the specified shift amount.
• Wrapping: The alphabet wraps around, so if a shift goes beyond 'z', it starts again from 'a'.
• Non-alphabet characters: Characters that are not in the alphabet (spaces, punctuation, numbers) are left unchanged.

Usage

1. Run the script: Execute the Python script.
2. Choose direction: Enter "encode" to encrypt or "decode" to decrypt.
3. Enter message: Type the message you want to encode or decode.
4. Enter shift number: Provide the integer shift value.
5. View result: The script will output the encoded or decoded message.

Example

Type 'encode' to encrypt
, Type 'decode' to decrypt:
encode
Type your message:
hello world
Type the shift number:
5
Here is the encoded result: mjqqt btwqi