[Moderator's note: I was under the impression most base stations did
the crypto in hardware, so the answer would be no, no performance
gain for such equipment. Besides, the main concern would be open
channels, not CPU load. Anyone know better? --Perry]
It's my understanding that functions like
On Mon, 17 Sep 2001, Greg Rose wrote:
There is one very simple reason why they might have wanted the encryption
switched off. Wiretapping at the base station requires a wiretap order,
whereas sniffing the airwaves in a matter of national security is something
the NSA is allowed to do (but
At 01:53 AM 9/17/2001 +0100, Peter Fairbrother wrote:
It is possible that damage to basestations or volume of traffic may have
caused this failure. Possibly, the telco switched it off to maintain
service. Equally, the FBI/NSA etc may have switched it off, but I don't know
why they would bother -
At 07:59 AM 09/13/2001 -0400, Angelos D. Keromytis wrote:
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
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.
Does
