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Re: quantum hype

daemon@ATHENA.MIT.EDU (Bill Stewart)
Sun Sep 14 11:34:01 2003

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Sat, 13 Sep 2003 20:40:36 -0700
From: Bill Stewart <bill.stewart@pobox.com>
To: crypto list <cryptography@metzdowd.com>
In-Reply-To: <20030913195231.GA9614@diamond.madduck.net>

martin f krafft wrote:
> and the general hype about quantum cryptography, I am bugged by
> a question that I can't really solve. I understand the quantum
> theory and how it makes it impossible for two parties to read the
> same stream. However, what I don't understand is how that adds to
> security.

It's very much a question of threat model.
If anonymity and traffic analysis protection are essential
to your operations, a system that lets wiretappers
follow a piece of fiber to your co-conspirators
may not be the best security out there :-)




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