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WLAN Security Issues, technologies, and alternative solutions Hosam M. Badreldin

WLAN Security Issues, technologies, and alternative solutions Hosam M. Badreldin Western Illinois University December 2011. Why Network Security?. Confidentiality protected from attackers Integrity information was not compromised Availability unauthorized access / DoS.

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WLAN Security Issues, technologies, and alternative solutions Hosam M. Badreldin

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  1. WLAN Security Issues, technologies, and alternative solutions Hosam M. Badreldin Western Illinois University December 2011 Hosam Badreldin – Fall 2011

  2. Why Network Security? • Confidentiality • protected from attackers • Integrity • information was not compromised • Availability • unauthorized access /DoS Hosam Badreldin – Fall 2011

  3. Security issues/problems • Rogue Access Points • Denial of Service • Eavesdropping • MAN-in-the-Middle • War Driving • Signal Jamming Hosam Badreldin – Fall 2011

  4. Security technologies 1- SSID • Passive scan 2- Mac Address authentication • Spoofing 1- Wired Equivalent Privacy (WEP) • Manual Key Management • Initialization vector Encryption • WEP key is combined with a 24-bit IV to create the key 2- Wi-Fi Protected Access (WPA) • Enhancement for WEP (48-bit IV) • TKIP: Temporal Key Encryption Protocol (Key per pkt) • PSK/802.1x authentication Hosam Badreldin – Fall 2011

  5. Alternative solutions • IEEE 802.1x • Availability • VPN • Confidentiality/Integrity • Cisco LEAP (Light Weight Authentication Protocol) • Availability • SSL (Secure Socket Layer) • Confidentiality/Integrity Hosam Badreldin – Fall 2011

  6. Questions & Comments Hosam Badreldin - Fall 2011

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