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The authors provide a design and implementation of self-protecting Electronic Medical Records (EMRs) using attribute-based encryption. The system allows healthcare organizations to export EMRs to storage locations outside of their trust boundary, including mobile devices, Regional Health Information Organizations (RHIOs), and cloud systems such as Google Health. In contrast to some previous approaches to this problem, the solution is designed to maintain EMR availability even when providers are offline, i.e., where network connectivity is not available (for example, during a natural disaster).
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