---------- Forwarded message ---------- Date: Sun, 30 Dec 2001 17:01:30 -0700 From: lynn.wheeler@firstdata.com To: Ray Dillinger <bear@sonic.net>, crawdad@fnal.gov, cryptography@wasabisystems.com, Peter Gutmann <pgut001@cs.auckland.ac.nz>, spki@wasabisystems.com Subject: Re: CFP: PKI research workshop somewhat as an aside .... the "gift" cards (and other flavors) that you see at large percentage of retail check-out counters in the US are effectively digital cash ... although the current incarnation results in a different card at every retailer. however, they are online, magstripe-based digital cash .... utilizing the same ubquituous point-of-sale infrastructure as debit & credit (it is just that the transaction routing goes to different online transaction processing than credit & debit). The issue of whether or not it would be possible to use any card at any merchant is more of a business rule issue than a technology issue. note from a higher assurance standpoint ... the x9.59 work is applicable to all electronic transactions .... whether they are credit, debit, e-check, OR (online) digital cash ... AND x9.59 transactions could flow over both existing ubiquituous point-of-sale network and/or a ubiquituous internet network (or any other kind of network). random refs: http://www.garlic.com/~lynn/index.html#x959 http://www.garlic.com/~lynn/index.html#aads lynn.wheeler@firstdata.com on 12/28/2001 4:50 pm wrote: A "local" financial branch implementation and a digital cash implementation might have a number of similar useability attributes .... aka from the standpoint of how local funds do you have immediately available .... aka funds are transferred into you local PDA as digital cash for immediate use .... or funds are transferred into the local financial institution for immediate use. --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to majordomo@wasabisystems.com