Protected Frame field is set to 1 in a data frame, the Frame Body field is protected utilizing the cryptographic encapsulation algorithm and expanded as defined in Clause 8. Only WEP is allowed as the cryptographic encapsulation algorithm for management frames of subtype Authentication." See also WLAN Authentication and Privacy Infrastructure (WAPI), China's centralized wireless security method IEEE 802.1AE MACsec References General External links Vulnerability in the WPA2 protocol, hole196 , Cryptographic protocols I