Emulation-based design evaluation of reader/smart card systems

Design exploration and evaluation are essential tasks during a product´s development cycle. Simulation and hardware emulation are common techniques to explore and evaluate the functionality of hardware/software designs. However, when it comes to distributed secure applications, like contactless reader/smart card systems, non-functional design properties and system aspects (e.g., conctactless power transfer, power consumption) have to be regarded too. State-of-the-art simulation-based and emulation-based design exploration tools cover these design issues and system aspects only to some extent. Here we present a design exploration framework for complete reader/smart card systems using state-of-the-art model-based emulation and estimation techniques. This novel system-based approach is of high importance because of the high availability of battery powered mobile readers (i.e. smart phones) and novel mobile application fields. Contactless power transfer and power consumption analyses of reader and smart cards can be performed for each clock cycle and in real time. Thus, novel system-level power and security optimization techniques can be evaluated considering the reader/smart card system as a whole. We demonstrate the application of our exploration framework by means of a typical Diffie-Hellman key exchange between reader and smart card and highlight power optimization possibilities.