CNIT 131 Bowne HW 13a

Secure E-Mail

25 Points

hw13_a.png (81K)


  1. Open a browser and go to

    You may be alerted that you have requested an encrypted page.

  2. Under step 2 "Hushmail sign-up" click the orange go button.

  3. The terms of service appear. Make up your hushmail name and enter it in the Option 1 - Choose your own Hushmail Address section. Click the Continue button in the Option 1 - Choose your own Hushmail Address section.

  4. If a box pops up asking if you want to install software, allow the software to install.

    hw13_c.png (11K)
  5. A black box opens as shown to the right on this page. Drag your mouse around inside that box for a couple of minutes until it vanishes. This is how hushmail gets some random numbers to use to generate your keys.

  6. In the next window, enter any pass phrase you like twice and click the Next button. Write down your pass phrase! If you lose your pass phrase you will be locked out of your hushmail account.

  7. When a box pops up saying Click okay to complete account creation, click the OK button.

  8. When a box pops up saying Do you want to add hushmail to your favorites, click the Cancel button.

  9. The next window tells you about the paid subscriptions. It has a form that asks for your name, credit card #, etc. Leave all that blank -- do NOT enter a credit card number. Just Scroll down to the bottom and click the Click here to continue with a free account button.

  10. Wait while the encryption engine downloads, and then enter your passphrase when you are prompted to.

  11. Your Hushmail e-mail window opens as shown below. click the Compose button.

    Hushmail mail window

  12. Compose a message to me at as shown below. Send a Cc to yourself at your hushmail address and also to yourself at an insecure address such as a Yahoo or Hotmail one, and also send a Cc to

    Click the Send button.

    Hushmail message

    hw13_h.png (7K)
  13. You will see a message warning you that one or more of the addresses do not allow encrypted e-mail, so hushmail cannot find public keys. Click the OK button.

  14. Look at the copy of the message you sent to an insecure address. It will show the HASH and the PGP signature, as shown below on this page.

    Hash: SHA1
    Here is the message body.
    This is HW13 from Your Name.
    Version: Hush 2.2 (Java)
    Note: This signature can be verified at
    -----END PGP SIGNATURE-----
  15. Look at the copy of the message you sent to hushmail. The HASH and the PGP signature will not be visible.

Modified 11-17-04