802.11i


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802.11i

An IEEE standard security protocol for 802.11 wireless networks that was developed to replace the original WEP protocol. Also known as "Robust Security Network" (RSN), 802.11i provides sophisticated authentication using a variety of protocols (802.1X, EAP and RADIUS) and strong security with the AES-CCMP encryption protocol. However, in order to allow in-place upgrading of older WEP hardware, 802.11i also supports the TKIP protocol, which is less robust than AES-CCMP, but far superior to WEP (see WPA for more details).

Wi-Fi Certification
The Wi-Fi Alliance provides certification for 802.11i-compliant products with its Wi-Fi Protected Alliance (WPA) logo program. The WPA and WPA2 logos certify compliance with a subset of 802.11i or the full 802.11i protocol. See WPA.
References in periodicals archive ?
When a user roams from one AP to another, fresh encryption keys must be renegotiated according to the 802.
Aruba's centralized encryption breaks new ground for 802.
While we, like other wireless vendors, make use of standard off-the-shelf radio components, we leave a large portion of their capabilities disabled in the access point," said Merwyn Andrade, CTO of Aruba Wireless Networks and contributor to the IEEE 802.
By centralizing all encryption, corporations can build more secure and higher performing wireless LAN environments best suited to support the new 802.
In a mixed environment, access points will typically use a lowest-common-denominator cipher as the group cipher, such as wired equivalent privacy or temporal key integrity protocol, to allow both 802.
Another fast-roaming technique made possible by 802.
There is a potential downside to the more secure WLAN provided by 802.
1x user-based authentication and supports WPA, AES encryption, as well as the upcoming 802.