sniffing and cracking rfid crypto

i always get a kick out of companies using proprietary crypto in their products.  hackaday reader b-rad writes, Researchers at Johns Hopkins University and RSA Laboratories have demonstrated how too crack the encryption of a Texas Instrument RFID transponder used in many "immobilizer-equipped" car keys and ExxonMobile SpeedPass e-payment fobs. the team was able to reverse engineer the … [Read more...]