Dorothy E. Denning is Professor of Computer Science at Georgetown University. She is the author of a classic book in the field, Cryptography and Data Security, a coeditor (with Peter J. Denning) of a more recent work, Internet Besieged: Countering Cyberspace Scofflaws, and the author of 100 papers on computer security. Dr. Denning has shared her special expertise on encryption in testimony before the U.S. Congress. 0201433036AB04062001