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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This is a layer 1-2 issue, not layer 3. Everything goes through the AP/router anyway, and you decide there if you broadcast. Wi-Fi is not p2p. And doesn’t WPA2-EAP already do that?
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Wifi is L2, not L3.
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No inherent reason. If so it would just be bad design tradeoffs.
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I think there is an inherent reason: wifi is multi-party, but DH is two party. There are multi-party DH algs, but nothing that isn't O(N^2) or multi-round. Though I guess DH could be used to exchange an envelope key for the shared medium key.
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