[5981] in cryptography@c2.net mail archive
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daemon@ATHENA.MIT.EDU (Anonymous)
Wed Oct 27 10:24:38 1999
Date: Wed, 27 Oct 1999 16:08:50 +0200 (CEST)
Message-Id: <199910271408.QAA16062@sofuku.monster.org>
From: Anonymous <nobody@replay.com>
To: cryptography@c2.net, cypherpunks@cyberpass.net
> Remember that GSM phones and US digital cellphones support encryption.
> All broken, of course, but it _is_ encryption.
> In some countries the PTT turns off GSM encryption or forces use of A5/2.
> In the US, the different cellphone standards support different crypto,
> and some cell companies or cell sites don't use it.
I know a fellow who does CDPD for a big vendor. When in maintenance mode,
encryption is disabled. He returned to an urban node a couple of weeks
after work had been done and found that maintenance mode was still on, and
all the credit-card swipes had been going over the air in the clear during
the interval. Whoops!
