Kerberos

Cartoon showing a boy with a suitcase saying "Mom, I really have to leaver for MIT now." His mother is sitting on the stairs with a needle and thread holding a pair of boxer shorts. She says "WAIT! I haven't finished sewing your Kerberos ID into your underwear yet!"
Incoming students: Creating an MIT online identity

Kerberos? Duo? Certificates? Here’s everything you’ll need to get yourself set up with a digital identity at MIT.