Secret Scribe encrypts text using an algorithm known as the Vigenere cypher. This means that each letter in your plaintext phrase is rotated through the alphabet by a number that corresponds to the letter in your keyword. In order to keep a fun feel to the encryption, spaces and punctuation are unchanged. In addition, letter case is preserved. Once you encrypt your message, you can copy it and send it to a friend, who can use your shared keyword to decrypt it on the other side. Have fun!