Re: [tor-talk] Post Quantum Tor

[Kevin Burress <speakeasysky@xxxxxxxxx>]

honestly, ideally it would be a lot easier to do things with tor if it
actually internally followed the unix philosophy and the layers of service
could be used as a part of the linux system and modular use of the parts. I
was just looking at BGP routing over tor. I'm not sure how to do that with
the current implementation over hidden service. I'm having a hard time
working out how to use it as layer 2 and encapsulate things over the
network from one hidden service to another. But i also understand the whole
system is not well funded. I'm glad it has progressed as far as it has
since I had first looked at all of the various deepwebs in 2007. At least
we no longer have to set up privoxy and worry about dns leakage.

On Sun, May 27, 2018 at 3:20 PM, Nick Mathewson <nickm@xxxxxxxxxxxxxx>
wrote:

> For current work on postquantum handshake support in Tor, see
> proposals 263, 269, 270, and ticket #24985.
>
> A digression:
>
> Personally, I don't agree that the evidence is so convincing about the
> NSA being able to break 256-bit ECDSA today: if they have it, then
> they'd treat it as a big secret, and not go around cagily implying
> that they had it.  When they brag publicly about their capabilities,
> they're usually not doing so on order to advertise secret advances
> that the world doesn't know about.
>
> Of course, by the same argument, we don't have much evidence that
> there *aren't* scalable quantum computers today.  If somebody has one,
> it makes sense that they would be keeping quiet about it.
>
> And even if there aren't large-scale quantum computers today, we need
> to keep in mind that any future such quantum computer would be able to
> decrypt today's traffic.
>
> So I think the sensible thing to do is to be cautious, and work under
> the assumption that we'll need to move our key exchange to a PQ
> handshake, according to something like the proposals above.
>
> cheers,
> --
> Nick
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