Defend against user enumeration timing attacks - overkill

Dmitry Belyavskiy dbelyavs at redhat.com
Wed Jun 28 22:11:53 AEST 2023


Dear Peter,

I'm trying to balance the original problem statement (protection from
users enumeration) and avoid doubling time here if the process has
already taken a long time to provide faster auth method iteration.
I believe that a better solution is to set some arbitrary (probably
configurable) timeout and, in case when we spend more time than that
value, avoid doubling it.

On Wed, Jun 28, 2023 at 2:04 PM Peter Stuge <peter at stuge.se> wrote:
>
> Dmitry Belyavskiy wrote:
> > May I ask you to explain whether I am wrong in my conclusions?
>
> I guess it's not clear what problem you are trying to solve.
>
>
> //Peter
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>


-- 
Dmitry Belyavskiy



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