Enabling Secure Ubiquitous Interactions.
Kevin Eustice, Leonard Kleinrock, Shane A. Markstrum, Gerald J. Popek, Venkatraman Ramakrishna, Peter L. Reiher · 2003
Future environments will require devices to be automatically and safely configured to perform important tasks. Security concerns based on known vulnerabilities within the Internet make it clear that any widely deployed computing infrastructure must be designed from the start with substantially more security. However, existing security models cannot handle the highly dynamic relationships between applications, devices, and environments fundamental to ubiquitous computing. We need new techniques to address these unique demands. We propose a new paradigm for creating and maintaining safe, ubiquitous computing environments, based on the novel idea of organizing related devices into spheres of influence. This concept captures both geographic and semantic groupings. Spheres are used to encapsulate policy and provide well-defined boundaries for interactions. Intra-sphere interaction requires policy-based negotiation among principals.