Embedding Distance-Bounding Protocols within Intuitive Interactions

Although much research was conducted on devising intuitive interaction paradigms with pervasive computing devices, it has not been realized that authentication, an important need in this context, has a strong impact on the ease of use. More specifically, distance-bounding protocols are necessary in some of the most interesting scenarios in pervasive computing. This article describes a drag-and-drop interaction paradigm that enables strong authentication by embedding such a protocol within personal authentication tokens. This article also discusses how this paradigm can be used as the basis for performing user-friendly pervasive multi-party secure interactions.