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[liberationtech] TUESDAY - May 15 - Practice-Driven Cryptographic Theory - Thomas Ristenpart

Yosem Companys companys at
Fri May 11 00:52:29 PDT 2012

TITLE: Practice-Driven Cryptographic Theory

SPEAKER: Thomas Ristenpart

ABSTRACT: Cryptographic standards abound: TLS, SSH, IPSec, XML Encryption,
PKCS, and so many more. In theory the cryptographic schemes used within
these standards solve well understood problems, yet a parade of damaging
attacks leave us with the question: What gives? Theoreticians often suggest
(at least in private) that the problems are well-understood and attacks
arise because standardizers misunderstand cryptographic theory. I'll use
some of my recent work which uses provable-security techniques to analyze
important standards (including TLS, HMAC, and PKCS#5) to argue that, just as
often, it is the theoreticians who don't have all the answers: analyzing
practically-useful cryptography requires pushing models and proof techniques
in never-before-considered directions. We'll see how (what I'll call)
practice-driven cryptographic theory can lead to new understanding and
improved confidence in cryptographic practice.

This talk will cover joint work with Mihir Bellare,  Scott Coull, Yevgeniy
Dodis, Kevin Dyer, Kenneth Paterson, Thomas Shrimpton, John Steinberger,
and Stefano Tessaro.

Date: May 15, 2012 (Tuesday)
Time: 4:30PM
Venue: Gates 463
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