Peter Gutmann wrote:
Given that all you need for this is a glorified pocket calculator, you could
(in large enough quantities) probably get it made for < $10, provided you shot
anyone who tried to introduce product-deployment DoS mechanisms like smart
cards and EMV into the picture.

That seems exactly to be the problem. Germany's e-health card would be a prime candidate for technology that could boost the use of such pinpads, but unfortunately the card will contain a smart card. (The device has a host of other problems too, don't get me started.)

Fun,

Stephan

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