IEEE 802.11i

The IEEE and its standards are introduced in Chapter 3, “WLAN Standards.” The IEEE 802.11 committee is responsible for wireless LANs and includes several subcommittees, known as Task Groups. Task Groups are charged with developing standards, which often are then rolled into the main standard, after they are adopted.

Task Group i (TGi) was formed in March 2001 as a split from the MAC Enhancements Task Group (TGe). Its charge was to “enhance the 802.11 Media Access Control (MAC) to enhance security and authentication mechanisms.” TGi finished work on the 802.11i standard, and it has been approved.

The 802.11i standard enhances 802.11 with several new security mechanisms to ensure message confidentiality and integrity. Some of these ...

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