David Wagner
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- For the entomologist, see David L. Wagner
David A. Wagner (1974) is an Associate Professor of Computer Science at the University of California, Berkeley and a well-known researcher in cryptography.
Wagner received an A.B. in Mathematics from Princeton University in 1995, an M.S. in Computer Science from Berkeley in 1999, and a Ph.D. in Computer Science from Berkeley in 2000.
Notable achievements include:
- 1995 Discovered a flaw in the implementation of SSL in Netscape Navigator (with Ian Goldberg) [1].
- 1997 Cryptanalyzed the CMEA algorithm used in many U.S. cellphones (with Bruce Schneier).
- 1998 Development of Twofish block cipher as a submission for NIST's AES competition (with Bruce Schneier, John Kelsey, Doug Whiting, Chris Hall, and Niels Ferguson).
- 1999 Invention of the slide attack, a new form of cryptanalysis (with Alex Biryukov); also the boomerang attack and mod n cryptanalysis (the latter with Bruce Schneier and John Kelsey).
- 1999 Cryptanalysis of Microsoft's PPTP tunnelling protocol (with Bruce Schneier and "Mudge").
- 2000 Cryptanalysis of the A5/1 stream cipher used in GSM cellphones (with Alex Biryukov and Adi Shamir).
- 2001 Cryptanalysis of WEP, the security protocol used in 802.11 "WiFi" networks (with Nikita Borisov and Ian Goldberg).
