Security Of RFID Systems In Spite Of Hacked Mifare-Classic RFID Chips

By FEIG Electronic

One option is to make card cloning more complicated by connecting the card's serial number to the data stored and additionally encrypting this data with the host-system. This way, the data is not directly readable, even if the Mifare-Classic key is known.

Another option is to encrypt the stored data with a customized encryption key, where every card receives an individual code. This method prevents the delivery of the code for all cards for a specific application, once an individual card has been hacked.

Although both alternatives require additional programming, they can be easily implemented, even into the infrastructure of already existing systems. System Terminals can be used in order to convert cards that are already in circulation.