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In general, the card emulation devices (e.g. the chips in phones) try to avoid letting any arbitrary UID be set. This makes cloning these cards more difficult
by amluto 2y ago
In general, the card emulation devices (e.g. the chips in phones) try to avoid letting any arbitrary UID be set. This makes cloning these cards more difficult than it would otherwise be. It’s not terribly difficult to find devices (USB-connected things and battery-less cards) that do allow arbitrary UIDs to be set, though.
- josephcsible 2y ago> the card emulation devices (e.g. the chips in phones) try to avoid letting any arbitrary UID be set. I can't think of a much worse way to do security. That feels like trying to flood the market with lockpicks that don't work instead of making a more pick-resistant lock.
- amluto 2y agoI imagine this is because the locks contain chips from NXP (PN532 chips), the name-brand MIFARE chips are made by NXP, and the lock picks (also PN532 chips!) are made by NXP.