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Article #3670Re: Putting two and two together (ATMs)
From: outer
Date: Wed, 22 Jul 1987 23:39
Date: Wed, 22 Jul 1987 23:39
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1063 bytes
> Can anyone out there think of a reason why banks shouldn't > automatically generate a random* offset for all their cards? Usually the offset is used to >offset< a customer chosen PIN. So the offset is entirely determined by the PIN the customer chooses. In principle there's nothing to prevent the issuing institution from choosing an assigned PIN at random, computing the natural PIN, and determining the card's offset from the two of them accordingly. -- Richard Outerbridge <outer@utcsri.UUCP> (416) 961-4757 Payload Deliveries: N 43 39'36", W 79 23'42", Elev. 106.47m.
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!utcsri!outer From: outer@utcsri.UUCP Newsgroups: sci.crypt Subject: Re: Putting two and two together (ATMs) Message-ID: <5124@utcsri.UUCP> Date: Wed, 22-Jul-87 19:39:45 EDT Article-I.D.: utcsri.5124 Posted: Wed Jul 22 19:39:45 1987 Date-Received: Fri, 24-Jul-87 01:37:29 EDT References: <3086@zen.berkeley.edu> Distribution: na Organization: CSRI, University of Toronto Lines: 12