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ITEC810. Securing WLANs and WMANs. Securing Wireless LANs and Wireless MANs. By Peter Nicola Supervisor: Dr. Michael Hitchens. Securing WLANs and WMANs. Agenda. What is it about? WLAN WMAN Conclusion. Securing WLANs and WMANs. What is it about?. - PowerPoint PPT Presentation
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SECURING WIRELESS LANS AND WIRELESS MANS
By Peter NicolaSupervisor: Dr. Michael Hitchens
ITEC810
SECURING WLANS AND WMANS
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SECURING WLANS AND WMANS
What is it about?
WLAN
WMAN
Conclusion
AGENDA
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The world is moving from Wired to Wireless Networking.
Two forms of Wireless Networking are discussed
The need to secure them
WLAN WMAN
SECURING WLANS AND WMANSWHAT IS IT ABOUT?
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What is it about?
WLANs
WMANs
Conclusion
SECURING WLANS AND WMANSAGENDA
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What is it?
Security Approaches Algorithms
Other approaches
WEP
WPA
WPA2
MAC FilteringSSID Broadcast
SECURING WLANS AND WMANSWLAN
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Evil Twin War Driving
SECURING WLANS AND WMANSWLAN
THREATS
SSID: Macquarie University
Replicated SSID: Macquarie University
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War Driving
SECURING WLANS AND WMANSWLAN
Weakly or not Secured
Well SecuredGoogle Maps
www.wifimaps.com
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War DrivingSECURING WLANS AND WMANSWLAN
Search Result in Australia Search Result Worldwide
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OUTCOME
SECURING WLANS AND WMANSWLAN
Keep them secured
Possible Improvements
Algorithm Used
Key Complexity
SSID Choice - HidingMAC Filtering
Digital IDs
Embedded Hardware Encryption
Management Software
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What is it about?
WLANs
WMANs
Conclusion
SECURING WLANS AND WMANSAGENDA
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What is it?
Security Approaches
PKM (Privacy Key Management)
Other approaches
AK and TEK 3DES & X.509
DOCSIS usageLessons learned from WLAN
SECURING WLANS AND WMANSWMAN
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No PHY layer protection One Way Authentication
SECURING WLANS AND WMANSWMAN
THREATS AND VULNERABILITIES
Jamming and DoS
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SECURING WLANS AND WMANSWMAN
One Way Authentication
BS
SS
Certificate
Cryptographic capabilities, …
AK (valid for 1 70 days)
Key Request
TEK (valid for 12 hours 7 days)
User Traffic
So, what is the problem?
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OUTCOME
SECURING WLANS AND WMANSWMAN
What can be Improved? Mutual Authentication
Physical Layer Protection
Shorter Key Life
How do BSs authenticate each other?
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What is it about?
WLANs
WMANs
Conclusion
SECURING WLANS AND WMANSAGENDA
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Wide usage of Wireless Networks
Perfect security does not exist
Operators are encouraged to know what threats are there, and how to be secured against them
There is always a room for improvements
SECURING WLANS AND WMANSCONCLUSION
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Thanks for your attention
SECURING WLANS AND WMANSTHANKS
Any Questions?
