[9339] in cryptography@c2.net mail archive
Re: NYC events and cell phones
daemon@ATHENA.MIT.EDU (Greg Rose)
Sun Sep 16 19:50:00 2001
Message-Id: <4.3.1.2.20010917091756.00bab7f0@203.30.171.11>
Date: Mon, 17 Sep 2001 09:20:24 +1000
To: t byfield <tbyfield@panix.com>
From: Greg Rose <ggr@qualcomm.com>
Cc: Cryptography List <cryptography@wasabisystems.com>
In-Reply-To: <20010916185623.A20618@panix.com>
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At 06:56 PM 9/16/2001 -0400, t byfield wrote:
>jdyson@treachery.net (Thu 09/13/01 at 02:57 PM -0700):
>
> > > An interesting bit of information: on Tuesday afternoon, to the extend
> > > that cellphones operated, GSM encryption was turned off throughout
> > > Manhattan. My GSM phone would repeatedly warn me of this on every call I
> > > made (or tried to make). As of Wednesday morning, things were back to
> > > normal.
>
>however, a very limited sample did suggest that single-band (i.e.,
>domestic) phones were working while, side by side, 'world' phones
>weren't.
If terrorists were stupid enough to use cellphones, they'd likely use ones
they could use at home, which means (unless they were South American or
domestic or Korean) GSM. So, if someone was going to ask service providers
to turn off encryption, I know which ones I'd start with...
Greg.
Greg Rose INTERNET: ggr@qualcomm.com
Qualcomm Australia VOICE: +61-2-9817 4188 FAX: +61-2-9817 5199
Level 3, 230 Victoria Road, http://people.qualcomm.com/ggr/
Gladesville NSW 2111 232B EC8F 44C6 C853 D68F E107 E6BF CD2F 1081 A37C
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