Limit access to unlocked OpenPGP SmartCard?
Felix E. Klee
felix.klee at inka.de
Fri Jan 28 23:32:55 CET 2022
Well, I think I could extend my SPR332 [mod]:
* Add a push-button that one has to press to close the C7 circuit for
I/O. Without that button pressed, the smart card cannot communicate
with the reader. That means, for every operation, one would need to
hold that button, kind of – but not as elegantly – as with a
* Using some electronics detect when the green PIN pad ✓-button is
pressed to confirm PIN entry on the reader. Let it trigger a timer
that cuts I/O for good after a few minutes.
Very likely there are some issues that I don’t see at the moment.
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