Making the Best of Mifare Classic Update
Wouter Teepe · 2008
What would you do if you would be instructed to make a secure ap-plication built on the Mifare Classic? Arguably, due to the vulnerabilities shown in [5] and hinted at on [6], this is rather difficult and it may be easier to use to another chip. This document explores what the best is you can get, if the only option is Mifare Classic. We propose countermea-sures against state restoration and against cloning. The effectiveness of these countermeasures depends on the absense of other vulnerabilities of the Mifare Classic. 1