[20174] in cryptography@c2.net mail archive
Re: NPR : E-Mail Encryption Rare in Everyday Use
daemon@ATHENA.MIT.EDU (John W Noerenberg II)
Wed Mar 1 09:08:03 2006
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
In-Reply-To: <43FFB9CA.8020001@nma.com>
Date: Tue, 28 Feb 2006 16:57:30 -0800
To: Ed Gerck <edgerck@nma.com>
From: John W Noerenberg II <jwn2@qualcomm.com>
Cc: Ben Laurie <ben@algroup.co.uk>,
Paul Hoffman <paul.hoffman@vpnc.org>, cryptography@metzdowd.com
At 5:58 PM -0800 2/24/06, Ed Gerck wrote:
>A phone number is not an "envelope" -- it's routing information, just like
>an email address. Publishing the email address is not in question and
>there are alternative ways to find it out, such as search engines.
Oh really? Then you should be able to send a note to my gmail address.
At 1:11 PM -0800 2/25/06, Ed Gerck wrote:
>Arguments that people give each other their cell phone numbers, for example,
>and even though there isn't a cell phone directory people use cell phones
>well, also forget the user's point of view when comparing a phone number with
>a public-key.
And that distinction is?
To me a cell-phone number is a string of characters, and a public-key
is - a string of characters.
>Finally, the properties of MY public-key will directly affect the
>confidentiality
>properties of YOUR envelope. For example, if (on purpose or by
>force) my public-key
>enables a covert channel (eg, weak key, key escrow, shared private key), YOUR
>envelope is compromised from the start and you have no way of
>knowing it. This is
>quite different from an address, which single purpose is to route
>the communication.
And if (on purpose or by force) your cell-phone number is being
monitored by an eavesdropper, MY call is compromised from the start
and I have no way of knowing it.
There is no difference.
--
john noerenberg
----------------------------------------------------------------------
All actions are wrought by the qualities of nature only.
The self, deluded by egoism, thinketh, "I am the doer."
-- Bhagavad Gita
----------------------------------------------------------------------
---------------------------------------------------------------------
The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to majordomo@metzdowd.com
