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Ian Avrum Goldberg
Ian Avrum Goldberg
Born	March 31, 1973 (age 51)
Alma mater	University of California, Berkeley (M.Sc., Ph.D.); University of Waterloo; (B.Math);
Known for	Off-the-Record Messaging
	Scientific career
Fields	Computer Science
Institutions	University of Waterloo
Thesis	"A Pseudonymous Communications Infrastructure for the Internet" (2000)
Doctoral advisor	Eric Brewer
Website	www.cypherpunks.ca/~iang/

Ian Avrum Goldberg (born March 31, 1973) is a cryptographer and cypherpunk. He is best known for breaking Netscape's implementation of SSL (with David Wagner),^[1] and for his role as chief scientist of Radialpoint (formerly Zero Knowledge Systems), a Canadian software company. Goldberg is currently a professor at the Faculty of Mathematics of the David R. Cheriton School of Computer Science within the University of Waterloo, and the Canada Research Chair in Privacy Enhancing Technologies.^[2] He was formerly Tor Project board of directors chairman,^[3] and is one of the designers of off the record messaging.^[4]

Education

Goldberg attended high school at the University of Toronto Schools, graduating in 1991. In 1995, he received a B.Math from the University of Waterloo in pure mathematics and computer science. He obtained a Ph.D. from the University of California, Berkeley in December 2000. His thesis was entitled A Pseudonymous Communications Infrastructure for the Internet.^[5] His advisor was Eric Brewer.

Accomplishments

As a high school student, Goldberg was a member of Canada's team to the International Math Olympiad from 1989 to 1991, where he received a bronze, silver, and gold medal respectively.^[6] He was also a member of University of Waterloo team that won the ACM International Collegiate Programming Contest in 1994.^[7] In 1998, Wired Magazine chose him as a member of the "Wired 25".^[8] In 2011 he won the EFF Pioneer Award.^[9] In 2019, he won the USENIX Security Test of Time Award along with his colleagues David Wagner and Randi Thomas and former PhD supervisor Eric Brewer.^[10] In 2023, he was named an ACM Fellow.^[11]

Work in cryptography

In 1995, Goldberg with David Wagner discovered a flaw in the random number generator used for temporary key generation in the SSL implementation of Netscape Navigator.^[1]^[12]

One of the first cryptanalyses on the WEP wireless encryption protocol was conducted by Goldberg with Nikita Borisov and David Wagner, revealing serious flaws in its design.^[13]^[14]

Goldberg was a co-author of the Off-the-Record instant messaging encryption protocol. He is also the author of the Perl script included in the novel Cryptonomicon by Neal Stephenson.^[15]

In 2009 Goldberg was co-author of the Sphinx Mix Format,^[16] which is nowadays implemented with the extension of a per-hop payload to increase the privacy of both payer and payee while routing Bitcoin payments through the Lightning Network.^[17]

Vitalik Buterin, co-founder of Ethereum, was a research assistant of Goldberg while a student at the University of Waterloo.^[18]^[19]

Goldberg is a member of the Cryptography, Security and Privacy group as well as the Cybersecurity and Privacy Institute (CPI). He has been collaborating with the CPI works on the development of a new interdisciplinary research and education program.^[2]