1. 1 CSCD 439/539 Wireless Networks and Security Lecture 1 Overview Fall 2007

2. 2 Beginning Thoughts Wireless networks have exploded in popularity in the last few years Why? –Some Reasons # wireless (mobile) phone subscribers now exceeds # wired phone subscribers! “This is a world where everyone is getting connected," … statistics showing that more mobile devices are sold per second than there are human births: 25 mobile devices sold vs. four births per second worldwide. Ed Zander, Motorola CEO

3. 3 Motivation for this class Why do you think you should learn about wireless networks and securing wireless networks?

4. 4 Content We cover –802.11 Networks How the protocol operates –Details of these networks Where it fits within the other network protocols –Differences between wired vs. wireless –Similarities and differences between 802.11 and other wireless technologies

5. 5 Content Cover –Security of 802.11 Networks How to secure networks Talk about secure protocols, WEP, WPA, 802.1X, 802.11i Designing secure networks Attacks on wireless networks Defense of wireless networks

6. 6 Content Also Cover –Bluetooth and its security –3G Cellular networks and evolution of these networks –WiMAX and its evolution –All as time permits …

7. 7 Format of Class Lecture, discussion some hands-on exercises –Lectures –Read papers –Discuss what we read Papers – write notes and actually discuss them –You will write a survey paper – Overview of a topic Near professional quality or –You will produce a project – Comparison of tools and techniques or program –Labs and homework Homework – exercises related to wireless concepts Labs – take-home or here Programs – several smaller – not the emphasis of this class

8. 8 Format of Class Continued Lecture –Part of the class meetings –Lecture one day and discuss work the other day or have an in-class exercise Speakers –Learn from people in the field –Will try to find speakers knowledgeable about both wireless networks and security

9. 9 Timeframe First half of class –Wireless LAN 802.11 basics –Physical and MAC layers –How to manage one, maximize performance –Bluetooth, 3G technologies Second half of class –How to secure wireless –What are security implications of everyone connected all the time –What are the threats to wireless devices?

10. 10 Questions

11. 11 Finish Next time Read : See paper references on Web page