[FoRK] [liberationtech] DecryptoCat
eugen at leitl.org
Tue Jul 9 07:32:01 PDT 2013
----- Forwarded message from Jacob Appelbaum <jacob at appelbaum.net> -----
Date: Tue, 09 Jul 2013 13:45:35 +0000
From: Jacob Appelbaum <jacob at appelbaum.net>
To: liberationtech at lists.stanford.edu
Subject: Re: [liberationtech] DecryptoCat
Reply-To: liberationtech <liberationtech at lists.stanford.edu>
> On Tue, Jul 9, 2013 at 11:39 AM, Michael Rogers
> <michael at briarproject.org> wrote:
>> Google and Mozilla wouldn't have to run
>> competitions to find holes in their own browsers. There wouldn't be a
>> multi-million-dollar 0day black market.
> You are talking about huge projects with complex design, where the
> architecture itself is a source of security issues. Not to mention
> that WebKit and Mozilla weren't engineered for security to begin with.
>> It wouldn't be possible for
>> the NSA (according to Snowden) to "simply own" the computer of any
>> person of interest.
> Offtopic, but I didn't see any indication in that last paragraph of
> Jacob's interview that Snowden talks about exploiting computers. In
> general, Snowden for some reason is usually terribly vague for someone
> who apparently exhibits excellent command of English language (from my
> non-native speaker's POV).
I think he very clearly stated it:
Interviewer: What happens after the NSA targets a user?
Snowden: They're just owned. An analyst will get a daily (or scheduled
based on exfiltration summary) report on what changed on the system,
PCAPS 9 of leftover data that wasn't understood by the automated
dissectors, and so forth. It's up to the analyst to do whatever they
want at that point -- the target's machine doesn't belong to them
anymore, it belongs to the US government.
If it isn't clear - he is saying that once a user is targeted for
surveillance - their computer systems (and networks) are compromised by
the NSA in a variety of ways. This includes memory corruption bugs,
>> Writing secure software is much, much harder than simply writing
>> comments, writing tests and coding defensively.
> This is a thread about Cryptocat. Cryptocat is a web frontend for a
> couple of protocols. Yes, it is that easy.
The protocol that has the most trouble is the homebrewed multi-party
crypto. Though some of the underlying bits obviously impact the rest of it.
All the best,
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