5/5/2002 10:25:19 AM, "Steven T. Cramer" <[EMAIL PROTECTED]> wrote:

>With a Biometric Point of Sale system one could easily accept e-gold and
>the end user would not feel as concerned about the theft of his or her
>password.  Given the current system one would have to enter their account
>number and password and a spying eye, from say a security camera, could
>monitor the keystrokes and steal such a password.
>
>A finger print is much more difficult to steal.  And with the cost of a
>Biometric system nearing $50 one could easily justify the cost based on
>the savings from normal CC transaction fees.
>
>Any ideas on this?


Interesting idea, but you'll get lots of resistance from people who distrust 
the government, and also from Christians, who have a good point when they say 
at some point you will not be able to buy or sell without "the mark".  Just 
imagine what the government could do to you by simply "turning off" your 
ability to buy groceries.

We need something that identifies your ACCOUNT without identifying YOU.

I think we need to migrate toward something like the Cryptocard technology.  
This is basically the "one-time pad" cipher method, in which no permanent 
passwords are involved.

Imagine that you have a piece of plastic called an "e-gold card" (or 1mdc, 
goldmoney, e-bullion, whatever).  You swipe this card through the point-of-
sale terminal and enter the card's 4-digit pin number.  Perhaps your e-gold 
account number is stored on the card; perhaps not.  If not, then you enter 
your e-gold account number, too.

The POS terminal then sends your e-gold account number, the purchase amount, 
and the store's e-gold account number to the e-gold "Point-of-Sale Server".  
The e-gold server makes up a random number and issues it as a "challenge" to 
the card.  The card runs the challenge number through some strenous 
mathematical formulas unique to that card, producing a "response" number.  The 
POS terminal then resends the purchase details, along with the challenge-
response pair, to the e-gold server.  If everything looks kosher, the e-gold 
server makes the spend.

With this technology, even someone watching the whole event on a surveillance 
camera does not have enough information to make fraudulent charges to your 
account.  He might know your pin and even your account number, but without the 
physical card to map a challenge into a response, he is sunk.

Even if the POS terminal had fraudulent SOFTWARE (i.e. a virus) installed on 
it, it would not help a digital thief get your money.  The e-gold server would 
issue a new challenge each time, and without the card there is no way to come 
up with the correct response.

I think this is much better than fingerprints.  Who knows?  Eventually someone 
might come up with a way to counterfeit your fingerprint.  They could simply 
lift a print off your car door handle and transmit the print to some nifty 
thin-film printer.  Then they wrap this film around their index finger and 
help themselves to your funds.

In fact, I almost wish some black hat would invent this technology just so we 
could nail down the coffin lid on this fingerprint idea once and for all.  ;)  
I suppose the biometrics people would then counter with GSR (galvanic skin 
response) detection, and the black hats would counter back with a new "sweaty 
oily film", etc. etc. like "Spy vs. Spy".  But I really can't think of 
anything that could counter the one-time pad technology.  Then again, I'm no 
expert on security.  Any ideas?

Regards,
Patrick Chkoreff





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