Abstract:
We are living in a world that is increasingly awash in data -- from data streams from automated sensors to user generated content on the web. Using this data to arrive at meaningful and actionable information is a hard task, because the data is gathered by a multitude of separate organizations, or even groups within the same organizations. Traditional models of security dictated that each source of data protect it using a "need to know" approach. Of late, there has been a realization that sharing the data and information across organizations in a proactive way is more likely to be useful in obtaining actionable information, because it is often hard to prearrange that all relevant entities have action to the information. This necessitates a paradigm shift from "need to know" to "need to share". This talk will describe the DoD MURI project being led by UMBC that is creating the the technologies and tools for the assured information sharing lifecycle -- from gathering to consumption. We will describe the overall vision and goals of the project, as well as two specific technologies that we are developing. These are grounding policy languages in security models, and dynamically creating the context in which a policy should be evaluated.


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