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CS120: Lecture 17

CS120: Lecture 17. MP Johnson Hunter mpjohnson@gmail.com. Agenda. Online crypto & AI examples Websites worth knowing: News Search Tools Reference Utilities. Security examples. Get PGP http://www.pgpi.org/ Brute-force attack on RFID for cars: http://www.rfidanalysis.org/

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CS120: Lecture 17

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  1. CS120: Lecture 17 MP Johnson Hunter mpjohnson@gmail.com

  2. Agenda • Online crypto & AI examples • Websites worth knowing: • News • Search • Tools • Reference • Utilities

  3. Security examples • Get PGP • http://www.pgpi.org/ • Brute-force attack on RFID for cars: • http://www.rfidanalysis.org/ • Only 40bit keys

  4. Security examples • Now there’s “Google hacking”… • inurl:"ViewerFrame?Mode=" • intitle:"Live View / - AXIS" | inurl:view/view.sht • intitle:"toshiba network camera - User Login" • http://200.71.42.48/ViewerFrame?Mode=Motion&Language=0 • http://141.211.44.254/view/index.shtml • http://66.186.226.189/view/index.shtml

  5. 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…

  6. 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

  7. 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 <that>” • Some noun  “is <that> 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

  8. AI examples • Eliza • Java: http://chayden.net/eliza/Eliza.html • Java: http://www-cse.uta.edu/~cook/ai1/lectures/applets/eliza/eliza.htm • PHP: http://www.manifestation.com/neurotoys/eliza.php3 • Modern incarnation: AIMbots • http://aimtoday.aol.com/features/main_redesign.adp?fid=aimbots • wsj, moviefone, etc.

  9. Websites: News/links • http://slashdot.org • http://digg.com/ • http://del.icio.us/ • http://aldaily.com • Google News: http://news.google.com

  10. Utilities • Bugmenot: http://bugmenot.com/ • Firefox extension: http://roachfiend.com/archives/2005/02/07/bugmenot/ • TinyUrl: http://tinyurl.com/ • Firefox extension: page down… • Mailinator: http://mailinator.com

  11. Tools • Firefox: http://www.mozilla.org/products/firefox/ • Gmail: http://gmail.com • Google Maps: http://maps.google.com • Mobile: http://www.google.com/gmm • Google subway maps • http://www.onnyturf.com/subwaymap.php • http://nycsubway.eyebeamresearch.org • Flickr: http://flickr.com/ • http://flickr.com/photos/tags/ccny/

  12. Reference • Dictionaries: http://dictionary.com/ • Google define: • Google “spell-check”: http://www.google.com/search?hl=en&q=relavent&btnG=Google+Search • Usage comparison with Google • Wikipedia: http://en.wikipedia.org • http://en.wikipedia.org/wiki/Turing_Machine • Uncyclopedia: http://uncyclopedia.org • Archive Wayback Machine: http://archive.org • http://web.archive.org/web/20001204202200/http://www10.cnn.com/

  13. Search • Google: http://www.google.com • Calculator • site:, inurl: • http://labs.google.com/ • Mobile maps: http://www.google.com/gmm • SMS: http://www.google.com/sms/ • http://www.google.com/sms/howtouse.html • Next week: websearch • Listen to clips on class site

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