27-01-2012, 03:50 PM
Electronic Cash and User Authentication using the Dallas Semiconductor
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An Apology
This presentation was intended for “interested lay-persons”. Apologies in advance for it’s extreme simplicity. It was also intended to make sense without the accompanying lecturer, to please excuse the detail (and length) of the presentation.
What We Will Discuss
How money and credit are handled now
Why e-Cash is better
The Evolution of a Secure eCash iButton
The DS1963S Monetary iButton (MiB)
Why Security is Important
How the DS1963S features provide security
We’ll Also Touch On...
iButtons in General
iButton Physical Security Issues
Various kinds of Cryptography
Attacks against e-Cash Schemes
Various e-Cash Applications
What’s Good About Credit Cards?
Somewhat difficult to duplicate (embossed plastic, magnetic stripe data, holograms)
No denomination - No need to make change
Audit trail is owned by the card issuer and the user
Message
Simple enough: Your “message” is whatever you have that you wish to protect or hide from all but the intended recipient.
Slightly more easily used over the Internet (only because number can be used w/o plastic card)
