NXPs MiFare chips are used in numerous RFID transport card systems around the world. The cryptography on its MiFare Classic chips was cracked by researchers from Radboud University last year, while working exploit code was published by a German researcher in October.
NXP security architect Jan Brands told ZDNet UK that transport operators had been "worried" about the cracks, and had started to move up to other chips in the MiFare family.
"Systems operators were worried about the security of MiFare Classic. The systems are made to be upgraded to provide better security," said Brands. "When access gates need to be upgraded, they can be upgraded so they accept MiFare Classic and MiFare Plus cards."
The picture shows an upgrade system developed by NXP to demonstrate that transport operators can use both types of card with the same gate, by issuing MiFare Plus cards with MiFare Classic compatibility.
Talkback
This post has been removed by a moderator.