Wired Equivalent Privacy. IEEE80211 standard defined this algorithm to protect wireless networks. But this protocol was proved to be insufficient to provide enough security.
Temporal Key Integrity Protocol.
Wi-Fi Protected Access. This is a subset of security enhancements was defined by Wi-Fi Alliance based on
IEEE 802.11i draft 3.0 as WEP proved to be insufficient. It replaces WEP Protocol with TKIP protocol.
Subset of security enhancements that is based on
completed IEEE 802.11i standard is called WPA2. Also known as
IEEE 802.11i. This has support for more robust encryption algorithm
CCMP to replace TKIP. It also has support for PMKSA caching. WPA2 authentication are of two types.
Extensible Authentication Protocol.
EAP over LAN.
Also known as
WPA2-PSK. PSK for
Pre Shared Key. It requires a single password to access Wi-Fi.
WPA2 can use the external authentication server (ex: RADIUS) and EAP to authenticate user.
RSA Message Digest Algorithm MD5
Pairwise Master Key
PMK Securtiy Association. This is the collection of information (Station MAC Address, AP MAC Address, PMK and the label “PMK Name”) used to derive PMKID.
PMKID = HMAC-SHA1-128(PMK, "PMK Name" | MAC_AP | MAC_STA)