Poking at bad encryption practices to discover some outrageous, unexpected issues
WTF?
!Chinese-made chips used in popular contactless cards contain hardware backdoors that are easy to exploit.
According to French researchers, “Mifare Classic” cards are widely used but havesignificant security vulnerabilities.
It featured several countermeasures designed to thwart known card-only attacks, but introduced its own security issues.
He ultimately cracked this secret key and discovered that it was used by all existing FM11RF08S cards.
Recovering the keys will always be possible if an attacker has access to the corresponding reader.
More robust (and hopefully backdoor-free) alternatives for RFID-based security are already available on the market.
