3. Facets of Mobile Security management devices air transmissions PAN LAN WAN public networks private networks applications mobility wireless traditional security 1 2 3 VPN 4
29. Wireless LAN security evolution 1999 2003 2005+ WEP WPA 802.11i / WPA2 Timeline Privacy: 40 bit RC4 with 24 bit IV Auth: SSID and Shared key Integrity: CRC Privacy: Per packet keying (RC4) with 48 bit IV Auth: 802.1x+ EAP Integrity: MIC Privacy: AES Auth: 802.1x+ EAP Integrity: MIC Security
37. Mobile Network Scenarios 1 1 2 2 4 PAN Zone WLAN Zone 3G Zone GPRS Zone Surfing: Person 1 improves bandwidth by moving into a 3G area MP3 Download: Person 2 saves time and money by scheduling the download in a public WLAN hotspot Peer-to-peer: Person 3 sends an MP3 file over a Bluetooth link free of charge to Person 4 3 Satellite Zone At sea: Person 5 maintains coverage via satellite after leaving GPRS range 5 5 Columbitech Birdstep Ecutel