EE-WBC Assignment 11

Program 1 (60pts.)

Consider the data files generated by the WiFi monitoring program called NetStumbler: Campus.txt, and Redmond.txt. Write a program in PERL that parses a user-specified data file (one file per program run) provided as keyboard input (keyboard redirection) and counts how many times each SSID is listed in that file. Ignore lines with invalid data and with unnamed SSIDs. Run your program two times, once on each provided data file. You must use two hash tables to get credit.

Provide the results in two formats:

• Print to screen (STDOUT) the list of SSIDs and how many times each name appears in the listing sorted descending according to that number. (Count occurrence of each name.)
• Print to screen (STDOUT) the list of SSIDs and the maximum signal ([xxx Sig xxx]) sorted descending according to that number. (Look for maximum number for each name.)

Additional materials

• http://www.netstumbler.com/ - Free Software that monitors WiFi
• Ryan, Patrick S., "War, Peace, or Stalemate: Wargames, Wardialing, Wardriving, and the Emerging Market for Hacker Ethics" . Virginia Journal of Law & Technology, Vol. 9, No. 7, Summer 2004 http://ssrn.com/abstract=585867

Question 2 (10pts.)

If you are in in New Hampshire and accidentaly access a WiFi network left unsecured by its owner - is it a crime or not? Please read the article listed above, provide a one to two sentence answer and a page number where the answer is discussed.

Homework Submission

Attach all source code in files with proper names and extensions (*.html, *.java, *.pl, *.php, .htaccess e.t.c.). Do not ZIP files together or include compiled files (e.g. *.class). In case of dynamic Web pages (JavaScript or CGI) or Java applets also send the complete URL (including http://) that points to a page on your Web site that demonstrates your homework. Send your homework via e- mail to the instructor at olekmali at bradley dot edu. Please set the message subject to: web-hwB.

Thank you.