CSCI6268L22 - Do you understand why algorithms work a...

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Foundations of Network and Foundations of Network and Computer Security Computer Security J J ohn Black Lecture #22 Oct 21 st 2009 CSCI 6268/TLEN 5550, Fall 2009
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Announcements Remember to read the virus paper Midterm is next time (Friday) Today we’ll do an overview, plus quiz solutions
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What to Study Easiest way to study: Review the slides (all online) Review the two reading assignments Review the quizzes More time-consuming way to study: Review the lectures
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Test Format/Content Just like the quizzes Almost anything from the lectures/reading is fair game but… I won’t ask you to expand acronyms I won’t ask you to produce OpenSSL commands
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Content (cont) Questions will test understanding Do you understand basic definitions Eg, what is a blockcipher, is computational indistinguishability, one-time pad, ACMA, etc How does a signature differ from a MAC?
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Unformatted text preview: Do you understand why algorithms work a certain way Eg, why does CBCMAC fail if message lengths vary? Why cant K2=K3 in XCBC Content (cont) Networking content We did a review and the questions will correspondingly be less in-depth Eg, how does TCP differ from UDP When are fragmented packets reassembled But, I wont test you on things we didnt review Eg, explain the TCP sliding window algorithm We have 50 mins This is a 50 min exam, so it will be similar in length to the quizzes Id rather give a longer test, but this is a constraint with the MWF schedule Expect a slightly longer test with fewer hard problems A hard problem is something like the question about 2-round DES Quiz Review...
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CSCI6268L22 - Do you understand why algorithms work a...

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