Smart-card manufacturers sues to suppress security flaw information
NXP Semiconductors is suing Radboud University Nijmegen to prevent university researchers from presenting a paper in an October conference on IT security; paper in question details serious security flaws in the company’s RFID chip
A semiconductor company is suing a Dutch university to keep its researchers from publishing information about security flaws in the RFID chips used in up to two billion smart cards. The cards are used to open doors in corporate and government buildings and to board public transportation systems. NXP Semiconductors filed suit in Court Arnhem in The Netherlands against Radboud University Nijmegen. The company is pushing the courts to keep university researchers from publishing a paper about reported security flaws in the MiFare Classic, an RFID chip manufactured by NXP Semiconductors. Computerworld’s Sharon Gaudin writes that the paper is slated to be presented at the Esorics security conference in Malaga, Spain, this October, according to Karsten Nohl, a graduate student who was part of a research group that originally broke the encryption last year. Nohl told Computerworld on Thursday that he gave his research to the Dutch university so it could build on what he had done, and he has been closely following its progress. “I think it’s crucial that it’s published in an academic conference where researchers can work on solutions,” said Nohl. “I don’t think there’s any good outcome for NXP. Say they were to win. They’d be keeping information away from the academics who might come up with solutions.” NXP declined to be interviewed for this story but said in an e-mailed statement, “We cannot give further comments at this time, as it is in the hands of the court and the court has given a confidentiality order.” Representatives from the university did not respond before deadline.
Nohl said the problem lies in what he calls weak encryption in the MiFare Classic smart card. In March, he said that once he had broken the encryption, he would need only a laptop, a scanner and a few minutes to get the cryptographic key to an RFID door lock and create a duplicate card to open it at will. Since the MiFare Classic smart cards use a radio chip, Nohl said he easily can scan them for information. If someone came out of a building carrying a smart card door key, he could walk past them with a laptop and scanner in a backpack or bag and skim data from their card. He also could walk past the door and scan for data captured to the reader. Once he has captured
