London Tube Smartcard Cracked
Looks like lousy cryptography.
Details here. When will people learn not to invent their own crypto?
Note that this is the same card—maybe a different version—that was used in the Dutch transit system, and was hacked back in January. There’s another hack of that system (press release here, and a video demo), and many companies—and government agencies—are scrambling in the wake of all these revelations.
Seems like the Mifare system (especially the version called Mifare Classic—and there are billions out there) was really badly designed, in all sorts of ways. I’m sure there are many more serious security vulnerabilities waiting to be discovered.
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