Anonymous payment scheme

Jonathan Cooper entropy at IntNet.net
Tue Jan 3 19:32:00 PST 1995


> I've heard of that, but I thought it was only a redundancy check to check 
> for read errors in the swiping process.

   That's why they use checksums - I have some information about the 
VISA-net authorization network (which came from Phrack) and also some 
about the actual encoding of the card, if anyone cares.

-jon

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