is UID of mifare classic editable?

StackOverflow https://stackoverflow.com/questions/9513440

Question

It would be nice if UID is write-protected so that I can use it to detect card clones. So, can it be modified?

Was it helpful?

Solution

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.

OTHER TIPS

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

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