Gustavus J. Simmons
Contributor
Former Senior Fellow, National Security Studies, Sandia National Laboratories, Albuquerque, New Mexico; Manager, Applied Mathematics Department, 1971–87. Researcher in command and control of nuclear weapons. Author of numerous articles on cryptology and authentication.
Primary Contributions (11)
Data Encryption Standard (DES), an early data encryption standard endorsed by the U.S. National Bureau of Standards (NBS; now the National Institute of Standards and Technology). It was phased out at the start of the 21st century by a more secure encryption standard, known as the Advanced…
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