1. Enter your passphrase and your message, then click the Encode button.
2. Your encoded message will appear in the 3rd text area.
3. Copy the encoded message and send it in an email to someone who knows your passphrase -- agreed upon, at an earlier time.
[ ] Then, that person can copy and paste the encoded message to the 3rd text area, click the decode button and see your original message. If the passphrase is incorrect, the message will not decode properly.