April 2011
Intermediate to advanced
368 pages
11h 36m
English
Content preview from Secure Roaming in 802.11 Networks
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The 802.11 Workgroups’ Solutions for Fast Secure Roaming
Client
802.11 Auth Resp (FT, MDIE, FTIE[ANonce, SNonce], RSNIE)
Reassoc Req(MDIE, FTIE[MIC, ANonce, SNonce], RSNIE[PMKR1Name])
Reassoc Req(MDIE, FTIE[MIC, ANonce, SNonce, GTK, RSNIE[PMKR1Name])
(Associated with current AP,
user data transfer possible.)
(Associated with target AP,
user data transfer possible.)
802.11 Auth Req (FT, MDIE, FTIE[SNonce], RSNIE)
(STA now breaks session with current AP.)
Current AP Target AP
Figure 9.10: Fast BSS Transition Over the Air, No QoS, and Security. (Courtesy of the IEEE.)
Over the DS via the current AP. For this reason, the frames exchanged during the
association ...
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