Comment by denysvitali
2 years ago
UUID can be cloned (with modified cards). This could make a clone attack even easier since you don't need Key A/B to read the contents.
2 years ago
UUID can be cloned (with modified cards). This could make a clone attack even easier since you don't need Key A/B to read the contents.
I just imagined that cloning would not be a big deal considering the short life of a typical hotel stay.
You still need to tell the door somehow that the UUID you have now is valid for X days.
Encrypting this information on the card itself is essier