Subscriptionless mobile networking: anonymity and privacy aspects within personal area networks

The foreseeable popularity of mobile devices using ad hoc wireless network technologies introduces a new class of user: The wandering communication participant, who instantly decides to establish a wireless network connection to a peer or information provider that happens to be in physical reach of his wireless network device. Typically, there has not been any registration process at the network or service level prior to a communication event. The instant and transient nature of this type of communication sessions as well as the user´s justifiable desire for anonymity and privacy require a security association management that is different from the classic security associations that prevail in today´s registration-based network and service architectures.