Date: Tue, 29 Mar 2011 11:39:00 -0500 (CDT) From: Mark Jacobson To: 810-023-01-spring@uni.edu Subject: Quiz on Tuesday, April 5th... The wireshark packet sniffing assignment is due on Thursday, 03/31. You will need to study your handouts and the class web page to answer all of the questions for the Wireshark packet sniffing and analysis assignment. The quiz in next Tuesday April 5th. http://www.cs.uni.edu/~jacobson/023/eth/wireSharkAssign.txt http://www.cs.uni.edu/~jacobson/023/eth/wireshark.html http://www.cs.uni.edu/~jacobson/23/ ------------------------------------------------------------------------------ 6. Open up the ssh.cap file. Q6: Follow the TCP Stream and determine how many bytes the <-- DO NOT SKIP THIS! connection communicated. --- SKIP this one: SKIP THIS QUESTION ------------- ------------------ Why is this different than the number of bytes you answered <-- SKIP THIS... in Q4? (You will have to read Chapter 6.1 Encryption to fully answer this question). SKIP THIS QUESTION... ------------------ ------------------------------------------------------------------------------ HINT #1: What if the key to get into your room or apartment or house was 5 foot tall, 3 inches thick, and 2 feet wide. That would be a big key to carry around? Hint: SSH and HTTPS. Key exchange. HINT #2: Another HINT regarding the homework. Please look at the TCP and IP and the ethernet packet structures and handouts. Please look at the web site and study the links and URLS and the P D N T S P A and the H HH HHH HHHH HHHHH info... What if you got a letter from a friend and inside the letter was the RSVP to an invitation: I will be at the party. 6 words is the actual message. What if that message was in an envelope and that envelope was in an envelope and that envelope was in another envelope. And all of these envelopes had different addressing information. USA and Cedar Falls and 50613 on the outer envelope Southeast sector of Cedar Falls on the next envelope Your street address and apartment number on the next envelope Your specific room number on the next envelope Your name and social security number and age and occupation on the next envelope Final the six word message on a tiny sheet of paper inside those FIVE envelopes. ---- "I will be at the party."