[146350] in cryptography@c2.net mail archive
[Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Sun Aug 25 15:35:00 2013
X-Original-To: cryptography@metzdowd.com
Date: Sun, 25 Aug 2013 15:34:46 -0400
From: "Perry E. Metzger" <perry@piermont.com>
To: Carl Ellison <cme@acm.org>
In-Reply-To: <D7EB9551-83C5-4EC6-96F9-1874FD684619@acm.org>
Cc: "cryptography@metzdowd.com" <cryptography@metzdowd.com>,
Phillip Hallam-Baker <hallam@gmail.com>
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com
On Fri, 23 Aug 2013 09:38:21 -0700 Carl Ellison <cme@acm.org> wrote:
> Meanwhile PRISM was more about metadata than content, right? How
> are we going to prevent traffic analysis worldwide?
The best technology for that is mix networks.
At one point, early in the cypherpunks era, mix networks were
something of an expensive idea. Now, however, everyone in sight is
connected 24x7 to the internet. Similarly, at one point, bandwidthwas
scarce, but now, most traffic is video, and even if instant messages
and email equivalents took many hops through the network, the
bandwidth used (except for mobiles, which need not be interior mix
nodes per se) is negligible.
Perry
--
Perry E. Metzger perry@piermont.com
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