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more on ARMSTRONG LECTURE on Quantum Crypto and Optical Networks (Forwarded)
From: David Farber <dave () farber net>
Date: Mon, 19 Sep 2005 20:31:32 -0400
Begin forwarded message: From: Bob Drzyzgula <bob () drzyzgula org> Date: September 19, 2005 7:22:45 PM EDT To: David Farber <dave () farber net> Cc: daw () cs berkeley edu, touch () ISI EDU, smb () cs columbia eduSubject: Re: [IP] more on ARMSTRONG LECTURE on Quantum Crypto and Optical Networks (Forwarded)
On Mon, Sep 19, 2005 at 06:34:33PM -0400, David Farber wrote:
Begin forwarded message: From: David Wagner <daw () cs berkeley edu> Date: September 19, 2005 6:22:10 PM EDT To: touch () ISI EDU Cc: dave () farber net, smb () cs columbia edu Subject: [IP] more on ARMSTRONG LECTURE on Quantum Crypto and Optical Networks (Forwarded) [...] Basically, today's QKE products are a bad joke. As far as I can tell, they are a way to hoodwink companies with too much money into paying $50k or $100k for a box that doesn't solve a problem they don't have. -- David Wagner
Recently, I was asked by my employer to do an initial evaulation of this technology. In fact, my conclusion was more or less in line with David's, although the words in my report were a bit more subdued than these. In researching the technology, I found that Bruce Schneier had discussed it a couple of years ago in Crypto-Gram. Anyone interested should read the whole piece at: <http://www.schneier.com/crypto-gram-0312.html#6> but here's his core point: | It's not that quantum cryptography might | be insecure; it's that we don't need | cryptography to be any more secure. | | Security is a chain; it's as strong as the | weakest link. Mathematical cryptography, | as bad as it sometimes is, is the strongest | link in most security chains. The computer | security, the network security, the people | security--these are all much worse. Besides this bit of common sense, I noted that no two offices my employer might care to connect in this manner were close enough together for a repeater-free fiber link to work. --Bob Drzyzgula ------------------------------------- You are subscribed as lists-ip () insecure org To manage your subscription, go to http://v2.listbox.com/member/?listname=ip Archives at: http://www.interesting-people.org/archives/interesting-people/
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