Wireless Network Security IT Security Ido Rosen - PowerPoint PPT Presentation

May 31, 2023 •297 likes •399 views

Introduction Wireless Network Security IT Security Ido Rosen ido@cs.uchicago.edu University of Chicago 5 March 2007 Ido Rosen Wireless Network Security Introduction Introduction 1 Overview Wireless LANs Ido Rosen Wireless Network

Introduction Wireless Network Security IT Security Ido Rosen ido@cs.uchicago.edu University of Chicago 5 March 2007 Ido Rosen Wireless Network Security
Introduction Introduction 1 Overview Wireless LANs Ido Rosen Wireless Network Security
Introduction Overview OSI Model Application Presentation Wireless changes the physical medium. Session What consequences does this have? Consider: Transport Much higher latency More dropped packets Network Easier to sniff (like using a hub). And more... Link Physical Ido Rosen Wireless Network Security
Introduction Overview Networks, Devices, & Standards Network Types: Wireless LANs (Managed) Ad Hoc Networks (including WPANs) Devices: PDAs, smart phones Laptops Access points / bridges Other devices... Standards: WLAN: 802.11a/b/g/n Secure: 802.1X, 802.11i/WPA2(-PSK), WPA(-PSK) ∗ , WEP † WPAN: Bluetooth Phone: GSM/GPRS/EDGE/UMTS ∗ Problem if key is short † Broken/weak. Ido Rosen Wireless Network Security
Introduction Overview Networks, Devices, & Standards Network Types: Wireless LANs (Managed) Ad Hoc Networks (including WPANs) Devices: PDAs, smart phones Laptops Access points / bridges Other devices... Standards: WLAN: 802.11a/b/g/n Secure: 802.1X, 802.11i/WPA2(-PSK), WPA(-PSK) ∗ , WEP † WPAN: Bluetooth Phone: GSM/GPRS/EDGE/UMTS ∗ Problem if key is short † Broken/weak. Ido Rosen Wireless Network Security
Introduction Overview Networks, Devices, & Standards Network Types: Wireless LANs (Managed) Ad Hoc Networks (including WPANs) Devices: PDAs, smart phones Laptops Access points / bridges Other devices... Standards: WLAN: 802.11a/b/g/n Secure: 802.1X, 802.11i/WPA2(-PSK), WPA(-PSK) ∗ , WEP † WPAN: Bluetooth Phone: GSM/GPRS/EDGE/UMTS ∗ Problem if key is short † Broken/weak. Ido Rosen Wireless Network Security
Introduction Overview Networks, Devices, & Standards Network Types: Wireless LANs (Managed) Ad Hoc Networks (including WPANs) Devices: PDAs, smart phones Laptops Access points / bridges Other devices... Standards: WLAN: 802.11a/b/g/n Secure: 802.1X, 802.11i/WPA2(-PSK), WPA(-PSK) ∗ , WEP † WPAN: Bluetooth Phone: GSM/GPRS/EDGE/UMTS ∗ Problem if key is short † Broken/weak. Ido Rosen Wireless Network Security
Introduction Wireless LANs IEEE 802.11 Ido Rosen Wireless Network Security

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