[To encrypt] Click the encrypt text box, type in the text you want to encrypt, then click the key box, type in a key, then click Encrypt and wait. [To decrypt] Click the decrypt text box, type in the text you want to decrypt, then click the key box, type in the key the text was encrypted with, then click Decrypt and wait. [To copy results] Press stop (red polygon) first, then select the text in the list and Ctrl+C [Error solving] The encrypt/decrypt text should be made up of alphabetic letters, numbers and basic punctuation marks. Its length should be between 3 and 200 characters. The key should be numeric with 3 to 15 characters.
algorithm used: Caesar Extend
