David Goldschmidt has been the Director of the Center for Communications Research (CCR) in Princeton, NJ since 1991, and was its deputy director from 1989-1991. CCR is a division of the Institute for Defense Analyses, a federally funded research and development center headquartered in Alexandria, VA. The Center has been performing mathematical and computational research in cryptography, signal processing, and related disciplines since 1958.

Prior to joining CCR, Dr. Goldschmidt was Professor of Mathematics at the University of California, Berkeley, where he served on the faculty from 1971-1989. He obtained a PhD in mathematics at the University of Chicago in 1969 and was a J. W. Gibbs Instructor at Yale University from 1969-1971.

Communications Security: A Case History

During World War II and in the years leading up to it, most German military wireless communications were encrypted by a cipher machine known as the ENIGMA. Thousands of these machines were deployed in all branches of the Nazi armed forces. In one of the most significant intelligence coups in history, the Allies were able to routinely read vast quantities of this traffic, even though the Germans believed the machine to be 100% secure. In this talk, Dr. Goldschmidt will explain how the ENIGMA works, give a hands-on demonstration with an actual machine, and discuss some of its weaknesses. He will then give a short introduction to some modern ideas in cryptography.

Wednesday, February 15, 7:30pm
Physics Building, Room 203
University of Virginia, Charlottesville, Virginia

This talk is intended for a general audience. Admission is free.

Those attending the talk can park near the UVa football stadium and walk through
the Engineering School to get to the Physics building, which is on McCormick Road.
Physics is building #41 on the map at:

Email: theims@virginia.edu

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