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From the Dec 31, 2007 edition Technology Brown research validates data authenticity By Marion Davis Contributing Writer The technology, known as the “secure transaction management system” (STMS), was developed by Roberto Tamassia, director of Brown University’s Center for Geometric Computing, and his research team, building on years of basic research supported by the Defense Advanced Research Projects Agency (DARPA) and the National Science Foundation. More » This item is available in full to subscribers. Please log in to continue. To purchase a copy of this article for $2.00, click here.