A simple app to encrypt messages to pass to your friends. All you have to do is decide on a secret number between you. Then enter your message. Then enter the number. Scratch will give you the encrypted version. To decrypt a message enter the encrypted message and enter the negative version of the number. So if your secret number was 5 then decrypt with -5. Scratch will give you the decrypted message.
This project was based on a fun little secret messages project I saw on the Code Club site here: https://codeclubprojects.org/en-GB/python/secret-messages/ I decided to see if it could be done in Scratch. The encryption is a simple alphabet rotation.
