Ist Uid von Mifare Classic editierbar?

Question

Es wäre schön, wenn UID schreibgeschützt ist, damit ich es verwenden kann, um Kartenklone zu erkennen. Kann es also modifiziert werden?

Answer 1

Yes and no. The standard Mifare Classic has a locked sector 0, where the UID is stored. However, if you Google changeable uid mifare, you'll find several (comparatively expensive) cards for sale with sector 0 unlocked.

Answer 2

As far as I know, the UID-s of the Mifare Classic are'nt guaranteed to be unique, so beware of that problem.