CS120: Lecture 17 MP Johnson Hunter

Agenda Online crypto & AI examples Websites worth knowing: –News –Search –Tools –Reference –Utilities

Security examples Get PGP – Brute-force attack on RFID for cars: – –Only 40bit keys

Security examples Now there’s “Google hacking”… inurl:"ViewerFrame?Mode=" intitle:"Live View / - AXIS" | inurl:view/view.sht intitle:"toshiba network camera - User Login"

AI & Mind: Turing Test Intelligent is as intelligent does We’re persuaded of intelligence by interaction –Conversation, tests Very hard problem: natural language –Conversely, think of “dumb” Imitation game  Turing Test Turing…

Eliza transcript H: Men are all alike. E: IN WHAT WAY H: They're always bugging us about something or other. E: CAN YOU THINK OF A SPECIFIC EXAMPLE H: Well, my boyfriend made me come here. E: YOUR BOYFRIEND MADE YOU COME HERE H: He says I'm depressed much of the time. E: I AM SORRY TO HEAR THAT YOU ARE DEPRESSED H: It's true. I am unhappy. E: DO YOU THINK COMING HERE WILL HELP YOU NOT TO BE UNHAPPY H: I need some help, that much seems certain. E: WHAT WOULD IT MEAN TO YOU IF YOU GOT SOME HELP H: Perhaps I could learn to get along with my mother. E: TELL ME MORE ABOUT YOUR FAMILY H: My mother takes care of me. E: WHO ELSE IN YOUR FAMILY TAKES CARE OF YOU H: My father. E: YOUR FATHER H: You are like my father in some ways. E: WHAT RESEMBLANCE DO YOU SEE H: You are not very aggressive but I think you don't want me to notice that. E: WHAT MAKES YOU THINK I AM NOT VERY AGGRESSIVE H: You don't argue with me. E: WHY DO YOU THINK I DON'T ARGUE WITH YOU H: You are afraid of me. E: DOES IT PLEASE YOU TO BELIEVE I AM AFRAID OF YOU H: My father is afraid of everybody. E: WHAT ELSE COMES TO YOUR MIND WHEN YOU THINK OF YOUR FATHER H: Bullies. E: DOES THAT HAVE ANYTHING TO DO WITH THE FACT THAT YOUR BOYFRIEND MADE YOU COME HERE

Weizenbaum’s Eliza Conversationalist as little more than a look-up table First: tell me why you came here today Then: –“mother”/”father”/etc  “Tell me more about your family –Some noun  “tell me more about ” –Some noun  “is why you came here today?” –any question  “why do you ask? –“you”  “We were discussing you -- not me” –Otherwise: “go on” –Or: “I’m not sure I understand Very simple (non-intelligent) program –Simple grammar, some memory, but not much more… Real intelligence is general Not intelligent: LUTs, books

AI examples Eliza –Java: –Java: –PHP: Modern incarnation: AIMbots – d=aimbotshttp://aimtoday.aol.com/features/main_redesign.adp?fi d=aimbots –wsj, moviefone, etc.

Websites: News/links Google News:

Utilities Bugmenot: –Firefox extension: TinyUrl: –Firefox extension: page down… Mailinator:

Tools Firefox: Gmail: Google Maps: –Mobile: Google subway maps – – Flickr: –

Reference Dictionaries: Google define: Google “spell-check”: Usage comparison with Google Wikipedia: – Uncyclopedia: Archive Wayback Machine: –

Search Google: –Calculator –site:, inurl: – Mobile maps: SMS: – Next week: websearch –Listen to clips on class site