Description
During a business trip you rest at the Grand classic hotel, on the Mifare coast. When you come back from your early morning running session, you realize that you lost your room key card.
The employees at the reception desk cannot help you because the tech guy is on holidays (yeah, again). But they find a debug trace file on his computer he has made by sniffing the communication between the key card and the door lock with a Proxmark during a physical security exercise.
They agree to let you search for the flag it contains.
The technology here is Mifare Classic, which is based on ISO 14443.
Files
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grand-classic.trace
7.67 KiB – 21a2822891e7e9c7752ae3dc1c1624f1196b54d0acfff0e8c16f0908235f6398
Author
jle
Flag
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