Re: [PATCH 6/6] mac80211/wpa: use constant time memory comparison for MACs

From: Johannes Berg
Date: Tue Jun 13 2017 - 04:20:14 EST


On Sat, 2017-06-10 at 04:59 +0200, Jason A. Donenfeld wrote:
> Otherwise, we enable all sorts of forgeries via timing attack.

I'm not really sure that this is actually true, since you don't get
much feedback on your frame that's dropped, especially if you're
attacking from remote. Basically, I don't see how you can observe the
timing of this operation?

Anyway, applied.

johannes