To use Caesar Cipher 1) first set the shift value (key), 2) using mouse click on "e" to encrypt or on "d" to decrypt 3 write the plaintext and press enter DON'T USE UPPERCASE LETTERS you can now send secret messages to your friends who know the key
uppercase letters, numbers and punctuation are not managed. The shift value is the key for encryption/decryption; first of all set the switch when you click on "d" this value becomes negative
