IEEE 802.11i

What Does IEEE 802.11i Mean?

IEEE 802.11i is an IEEE 802.11 amendment used to facilitate secure end-to-end communication for wireless local area networks (WLAN). IEEE 80211i improves mechanisms for wireless authentication, encryption, key management and detailed security.

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IEEE 802.11i is also known as IEEE 802.11i-2004.

Techopedia Explains IEEE 802.11i

IEEE 802.11i enhances Wired Equivalent Policy (WEP), which was a defacto wireless security standard until it was replaced by the draft version of Wi-Fi Protected Access (WPA). When combined, IEEE 802.11i and WPA 2 form a complete wireless security protocol that includes the Advanced Encryption Standard’s (AES) block ciphering technique, four-way handshake and group key handshake for improved authentication and access control.

IEEE 802.11i also incorporates Temporal Key Integrity Protocol (TKIP) and Counter Mode/CBC-MAC Protocol (CCMP) for data transmission confidentiality, protection, packet authentication and encryption.

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Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.