Don Coppersmith
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Don Coppersmith is a cryptographer and mathematician. He was involved in the design of the Data Encryption Standard block cipher at IBM, particularly the design of the S-boxes, strengthening them against differential cryptanalysis.[1] He has also worked on algorithms for computing discrete logarithms, the cryptanalysis of RSA, methods for rapid matrix multiplication (see Coppersmith-Winograd algorithm) and IBM's MARS cipher. Don is also a co-designer of the SEAL and Scream ciphers.
In 1972, Coppersmith obtained a Bachelor's degree in mathematics at the Massachusetts Institute of Technology, and a Masters and PhD in mathematics from Harvard University in 1975 and 1977 respectively.[1] He was a Putnam Fellow each year from 1968–1971, becoming the first four-time Putnam Fellow in history.[citation needed] In 1998, he started Ponder This, an online monthly column on mathematical puzzles and problems. In October 2005, the column was taken over by James Shearer.[2]
In 2002, Coppersmith won the RSA Security Award for Mathematics.[3]
Coppersmith is currently employed at the Center for Communications Research in Princeton, a division of the Institute for Defense Analyses.
[edit] References
- ^ a b Coppersmith, Don (May 1994). "The Data Encryption Standard (DES) and its strength against attacks" (PDF). IBM Journal of Research and Development 38 (3): 243. http://www.research.ibm.com/journal/rd/383/coppersmith.pdf.
- ^ "Ponder this" IBM.
- ^ Don Coppersmith Wins RSA Security Award for Mathematics.
