Crypto 101 – Introductory course on cryptography
When I was taking Aikido, there was a day when the sensei was going through all of our techniques and showed how the uke (initiator of the attack, receiver of the technique) could turn things around on the tori. (receiver of the attack, initiator of the technique) It seemed like there were a half dozen ways each that a technique could go seriously wrong, and that many of them didn't require much skill, only determination and the opportunity provided by a mistake. That day made me question the validity of the entire notion of self defense.I wonder if there shouldn't be a software engineering class where people try to set up a secure web app, with their own homegrown algorithms and protocols, which is then attacked by a tiger team which includes a conspirator on the inside? Perhaps there are such classes now.