Re: [tcpinc] TCP Stealth - possible interest to the WG

[Jacob Appelbaum <[e-mail]>]

On 8/15/14, Scheffenegger, Richard <[e-mail]> wrote:
> Hi,
>
> I just learned about an individual submission, which is probably of interest
> not only to the members of these two WGs;
>
> http://tools.ietf.org/html/draft-kirsch-ietf-tcp-stealth-00
>

Hi,

I'm one of the authors of the draft and I've cc'ed Christian who has
been one of the driving forces behind the draft.

>
> On a first, casual glance, I am wondering if the authors have realized all
> the implications of their suggestion;
>

This article we wrote may be of interest to you:

http://www.heise.de/ct/artikel/NSA-GCHQ-The-HACIENDA-Program-for-Internet-Colonization-2292681.html
(English)
http://www.heise.de/ct/artikel/NSA-GCHQ-Das-HACIENDA-Programm-zur-Kolonisierung-des-Internet-2292574.html
(German)

> There seem to be at least two or three major issues that compromise either
> the working and stability of TCP, or work against the intended
> "stealthieness" of this modification (making it easy for an attacker to
> identify such sessions, provided he is able to actively interfere with
> segments in transit (ie. cause certain segments to be dropped).

Could you expand on these thoughts a bit?

> Nevertheless, it might be beneficial to discuss the generic idea in a wider
> forum, among brighter minds than me.

Thanks for bringing it up!

All the best,
Jacob