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What Is WPA2?


Question: What Is WPA2?
Answer: WPA2 is a security technology commonly used on Wi-Fi wireless networks. WPA2 (Wireless Protected Access 2) replaced the original WPA technology on all certified Wi-Fi hardware since 2006 and is based on the IEEE 802.11i technology standard for data encryption.

WPA2 vs. WPA vs. WEP

Wireless Protected Access was designed as a replacement for the older and less secure Wireless Encryption Protocol (WEP). WPA2 should be used instead of WEP whenever possible on home computer networks.

WPA2 also improves the security of Wi-Fi connections by requiring use of stronger wireless encryption than what WPA requires. Specifically, WPA2 does not allow use of an algorithm called TKIP (Temporal Key Integrity Protocol) that has known security holes (limitations) in the original WPA implementation.

WPA2 Keys

Several different forms of WPA2 security keys exist. WPA2 Pre-Shared Key (PSK) utilizes keys that are 64 hexadecimal digits long and is the method most commonly used on home networks. Many home routers call WPA2 PSK as "WPA2 Personal" mode; these refer to the same underlying technology.

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