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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:10:56
Chris Liljenstolpe (cds@mcmurdo.gov)
Fri, 07 Aug 1998 13:54:56 +0000
Greetings,
Most ATM's will collect the PIN and account number, and send it off in
a packet in one shot along with the transaction. The ATM dosen't get to
make the auth decision, the bank does.
Chris
--On Thursday, 06 August, 1998, 09:49 -0400 someone claiming to be Jon
Vincent <jonboy@osiris.ml.org> scribed:
> this thread onto a friend that knows some stuff about how cards
> work. His reply:
>
> "Yes the number is on the card. But is is encrypted. It isn't very
> complex encryption though, only 16 or 32 bit. Haven't done alot of study
> on that though. Give me a week and I can probably tell you exactly how
> they work. But I am certain the number is on the mag stripe. When I was
> in bloomington IL I used a little funny stand alone ATM. Well when I used
> it it didn't even initiate an outside connection until after I had entered
> my PIN and how much money I wanted. It only used a 14.4kbps modem and I
> could hear it dial. So unless that thing has even PIN for every bank
> account in the world stored on it somewhere, it's on the card. Besides I
> just swiped my card through a reader here at work. The account number is
> in plain numbers, the expiration date is in plain numbers, but the pin
> appears to be encrypted. I am guessing no more than 32 bit encryption.
> Probably very easy to crack."
-- Chris Liljenstolpe - Network Engineer, NOC - McMurdo Station Antarctica Antarctic Supt. Assoc. - under contract to USAP, Nat. Science Foundation OPP mailto:cds@mcmurdo.gov TEL: +1 509 689 6270 FAX: +1 509 689 6293 PSC 469, Box 700, APO AP 96599-5700 USA Lat: 77 50 53 S Long: 166 40 06 E
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:10:56