An IoT device user with a blood-pressure monitoring device should have the assurance that the device operates how a blood-pressure monitor should operate. If the monitor is connected to a measurement app that collects, stores, and reports data, but interacts in a way that is inconsistent with typical interactions for this type of device, there may be cause for concern. The reality of ubiquitous connectivity and frequent mobility gives rise to a myriad of opportunities for devices to be compromised. Thus, we argue that one-time, single-factor, device-to-device authentication (i.e., an initial pairing) is not enough, and that there must exist some mechanism to frequently (re-)verify the authenticity of devices and their connections.
In this paper we propose a device-to-device recurring authentication scheme – Verification of Interaction Authenticity (VIA) – that is based on evaluating characteristics of the communications (interactions) between devices. We adapt techniques from wireless traffic analysis and intrusion detection systems to develop behavioral models that capture typical, authentic device interactions (behavior); these models enable recurring verification of device behavior.
Welcome to the Trustworthy Health and Wellness (THaW) project. Our mission is to enable the promise of health and wellness technology by innovating mobile- and cloud-computing systems that respect the privacy of individuals and the trustworthiness of medical information.
With this mission in mind, our team is launching a comprehensive, multi-disciplinary research agenda to address many of the fundamental technical problems that arise in securing healthcare infrastructure that, given recent trends, will increasingly be delivered using mobile devices and cloud-based services. The pervasive reach and (often) health-critical nature of these new technologies demand scientific solutions that provide trustworthy cybersystems for health and wellness. Our five-year research agenda is driven by the needs of the changing health & wellness ecosystem and addresses fundamental scientific problems that arise in other domains in transition to an infrastructure built on mobile devices and cloud services, such as transportation, m-commerce and education.
Specifically, our research agenda will contribute to authenticating mobile users in a continuous and unobtrusive way, segmenting access to medical records from mobile devices to limit information exposure, allowing individuals a usable way to control the information collected about them, handling genomic data in the cloud while enabling patient control over information, managing security on remote health devices while reducing the burden on the user, verifying medical directives issued to remote devices, detecting malware through power analysis, providing provenance information to those who use health data, and auditing behavior of this complex ecosystem of devices and systems.
Our research will have long-term impact by enabling the creation of health & wellness systems that can be trusted by individual citizens to protect their privacy and can be trusted by health professionals to ensure data integrity and security. Our healthcare partners will aid us to evaluate and demonstrate the value of our security solutions. We will also impact the next generation of scientists by creating new course modules, sponsoring summer programs for underrepresented minorities and women to broaden undergraduate and K-12 participation in computing; and creating an exchange program for our postdocs and research students to rotate among sites to broaden perspectives and receive mentoring on trustworthy computing.