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#1 2019-06-21 11:28:53

masterix
Contributor
Registered: 2017-03-28
Posts: 12

Mifare 4K with KeyA and KeyB generated from UID

Hi dears,

today i found two Mifare 4K cards used with an access control reader. These have the same key A and key B for all sectors.

UID:  e4b8167f
Key A: 00c4356eb900
Key B: 00d62929d600
UID:  e462167f
Key A: 007d4b7b4800
Key B: 008fa13b3100

Have you any idea to understand how are calculates the keys? from UID?

Thanks

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