Abstract
Wireless communication has become increasingly popular due to development of internetworking. In this paper, the hidden security problems of IEEE802.11i in wireless LAN are presented. To solve them, the implementation of SA Query Mechanism of wireless devices is well-designed, based on Security Association (SA) Query mechanism proposed according to the IEEE 802.11w protocol. As to the reality, the implementation mentioned above is especially significant while plenty of wireless devices are lack of SA query mechanism, which is necessary in 802.11w protocol. In the last part, certain security risks of SA query mechanism are also discussed in this essay as supplementary.
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