Still frustrated that open Wi-Fi doesn't do a Diffie-Hellman round to defeat passive attackers.
And that WPA-PSK doesn't use a proper PAKE to make the password uncrackable and useless to passive attackers.
#petpeeves
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Wifi also supports multiple APs, and extenders, all of these have to share keys as you roam or flip between APs and deal with partitions. There's also Wifi Direct, where the devices communicate p2p, not via the AP. It's all a pretty tough design challenge for DH!
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Doesn't roaming between APs involve a RADIUS server that could coordinate the bcast keys?
End of conversation
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