Formalising privacy-type security properties using the applied pi calculus

Privacy is a general requirement that needs to be studied in di↵erent contexts. We identify some applications for wich privacy plays an important role, and with significant interest in terms of societal impact. Since each application leads to several definitions of privacy, and raise some particular modelling issues, we concentrate our e↵orts on the three following applications: electronic voting protocols, RFID tags, and routing protocols in mobile ad hoc networks. For each application, we show how to formalise di↵erent notions of privacy in the applied pi calculus (or extension of it).