16. 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