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From: Nico Schottelius <nico.schottelius@ungleich.ch>
To: "Rémi Lapeyre" <remi.lapeyre@lenstra.fr>
Cc: wireguard@lists.zx2c4.com
Subject: Re: Adding 2FA to WireGuard
Date: Fri, 13 Sep 2019 22:22:55 +0900
Message-ID: <875zlw8h5c.fsf@line.ungleich.ch> (raw)
In-Reply-To: <CAFsReqTThNXkkPH+_YHOhC_DEbKwY5rPdmRDVJxLiTQbhfAbDA@mail.gmail.com>


Hey Rémi,

Rémi Lapeyre <remi.lapeyre@lenstra.fr> writes:
> Hi Nico, yes pyotp is the implementation I use on the server, but anything
> Compatible withrfc6238 should work.

That sounds about right!

>> We have written ungleich-otp [0] that extends the otp approach with
>> realms similar to kerberos.
>
> This looks interesting, I will move the code that validate the OTP in a
> separate class so that another validation backend like one based on this
> project can be used instead of reading the seeds from a SQLite file like
> I’m doing now.
>
> I did not see any kind of cool down in
> https://code.ungleich.ch/ungleich-public/ungleich-otp/blob/master/otpauth/serializer.py.
> Are you not worried that someone
> could try to brute-force the OTP validation?

That is a good point! We will certainly want to fix that, as the seed
entropy is not *that* big.

Best regards,

Nico


--
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Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-12 21:01 Rémi Lapeyre
2019-09-13 12:49 ` Nico Schottelius
2019-09-13 13:17   ` Rémi Lapeyre
2019-09-13 13:22     ` Nico Schottelius [this message]
2019-09-15 16:46 ` Rene 'Renne' Bartsch, B.Sc. Informatics

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