[14103] in cryptography@c2.net mail archive
Re: Code breakers crack GSM cellphone encryption
daemon@ATHENA.MIT.EDU (David Wagner)
Mon Sep 8 19:27:23 2003
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To: cryptography@metzdowd.com
From: daw@mozart.cs.berkeley.edu (David Wagner)
Date: Mon, 8 Sep 2003 21:55:41 +0000 (UTC)
Reply-To: daw@cs.berkeley.edu (David Wagner)
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Trei, Peter wrote:
>Why the heck would a government agency have to break the GSM encryption
>at all?
Well, one reason might be if that government agency didn't have lawful
authorization from the country where the call takes place.
(say, SIGINT on GSM calls made in Libya)
Another might be if the government agency did not want to disclose the
presence of the eavesdropping to the telephone company that is carrying
the calls.
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