If you receive a Fifth Week Flag in 8.02, it will be electronic mail with a digital signature, and it will look something like this:
-----BEGIN PGP SIGNED MESSAGE----- This is a sample 8.02 early warning message. If it had been a real message, it would have been mailed to the student and cc:ed to the student's advisor and 8.02 Recitation Instructor. [Instructions for authenticating this message are available at http://web.mit.edu/acs/www/fwf/802.html] -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBOMkdpx7siEpD8VBdAQF1RgQAlUjXGCcpZYzzMV+kpd3el5h1N6oGRzAY GVeBoQyP+Gh6yGuGLJdbei1MNb0wCUXLT6Nx6iQlY0WizeBFAgpJfpqn0WqW5qv/ yNnPktNfcfice316mOemCLVDnpRDiRKQ+ehzBb+q1Btx5576aqhAaJIBZemSrYAO gbhRLWSrJ/0= =XFXq -----END PGP SIGNATURE-----
To verify that the message is valid, you may use the special "verify-message" command on Athena, as follows:
You will get a report something like this:
Please make sure the following says the signature is good and that the message is addressed to you. Good signature from user "8.02 Course Administrators". Signature made 2000/03/10 16:55 GMT WARNING: Because this public key is not certified with a trusted signature, it is not known with high confidence that this public key actually belongs to: "8.02 Course Administrators". The message follows. Press ENTER to continue...
...followed by the text of the message. You may safely ignore the
WARNING in this case.