Guest Article: Why WPA is no longer secure

wrt54g router

This is second Guest Article featured on the blog. The article is a brief look at why WPA encryption in wi-fi networks is not secure any longer. Our guest blogger this week is Maya Richard. She describes how brute force attacks can be used against captured packets which have been encrypted with WPA encryption. These attacks have become increasingly practical through the use of graphics hardware which is well-suited to brute force cracking.

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Ns-3.2 on Ubuntu 8.04 Hardy Heron

For the next stage of my thesis instead of using the well known ns-2 simulator as originally planned, I have opted to instead use ns-3. I have chosen this particular environment because it seems to be designed from the ground up to be a wireless simulation tool while ns-2 was originally designed solely for wired network simulation. I have made some use of ns-2 however, so if you are looking for a guide to getting that working in Ubuntu see my post “NS-2.33 on Ubuntu 8.04 Hardy Heron“. In addition to this, ns-3 no longer uses the tcl scripting language. Instead the choice of pure c++ or a combination of c++ and python may be used to define the simulation parameters. I prefer this approach because I have no desire to learn tcl and find the c++ ns-3 ot be more intuitive than ns-2. Additionally, this guide will be used as a reference for myself while I learn the ns-3 environment. Check back for regular updates and useful infromation.

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Free Wireless Articles via IEEE

Just a quick post today since I’m strapped for time, but thought its pretty useful (and almost a reminder to myself to check this out later). The IEEE has put a bunch of articles related to wireless networks written by leaders in the field up for free for a limited time.

http://www2.computer.org/portal/web/computingnow/focusonwireless

(I know this doesn’t benefit me directly since I already belong to those societies and could probably get access to them through my libraries, but they seem interesting enough and I will likely read at least a few the next chance I get). It’s also helpful for those people who don’t necessarily have normal access to IEEE articles a chance to try them out. Topics include Pervasive Computing, Internet Computing, Security, RFIDs and more. Check it out if you get a chance!

University of Guelph Research Day – Winter ’08

University of Guelph Research Day Winter 08

On December 2nd and 4th 2008, Research Day for the Computer Science Department at the University of Guelph is taking place. Research Day is a day where many of the graduate and some undergraduate students present research projects in various stages. For the graduate students the projects consist of initial results and proposals for thesis documents while the undergrads present results from their research projects.

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PerWin Research Group @ the University of Guelph

Today I completed the listing page for all of the presentations our research group PerWin at the University of Guelph has made in the last year or so. PerWin stands for Pervasive Computing and Wireless Networking Research. The group is directed by my advisor, Dr. Mieso Denko and has several graduate students who are active research members in the group. We have given presentations on topics ranging from Wireless Mesh Networks protocols, Autonomous networks, Fair Scheduling, Load Balancing, RFID, Wireless Security and much more. We have also had special invited talks by several faculty members from various Universities around Ontario (Ryerson, UOIT).

reynolds building, computing department, university of guelph

Reynolds Building @ University of Guelph where PerWin meets regularly

Check out the schedule page here for the list of presentations, presenters and topics. There are also listings of many of the websites for the presenters which may be a good resource for people interested in our work. If you are a faculty member interested in giving a talk contact Dr. Mieso Denko at the University of Guelph.

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