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Now Available: Innovators Under 35 2013 See The 2013 List »

Vincent Rijmen, 31

Software

Cryptomathic

Rules “get in the way most of the time,” says cryptographer Vincent Rijmen. Last year the U.S.government chose the Belgian citizen’s encryption algorithm, Rijndael (pronounced rain-doll),as its new Advanced Encryption Standard. Rijndael replaced the aging, no longer unbreakable Data Encryption Standard, used since 1977 by U.S. government agencies and companies to safeguard everything from e-mail to phone calls. It beat submissions from many large competitors, including IBM, and will be widely used. Rijmen created Rijndael with Joan Daemen,36,a fellow postdoc at Katholieke Universiteit Leuven in Belgium. The duo pulled off the upset in part by throwing away what Rijmen calls a cryptography “rule”: to be secure, an encryption algorithm has to be exceedingly complex. Advanced computers would need trillions of years to decrypt information encrypted using Rijndael—yet the algorithm can run on devices like smart cards. Already, manufacturers plan to include Rijndael in cell phones, credit cards and Web browsers. “People will be using it without ever knowing,” says Rijmen, who recently became chief cryptographer at Cryptomathic, an Aarhus, Denmark, security firm.

2002 TR35 Winners

Andrew Barrows

Transportation

Elisabeth M. Belding-Royer

Telecommunications

Vincent Berger

Telecommunications

Eric Bonabeau

Software

Daniel Branagan

Materials

Arnaud Brignon

Hardware

Howie Choset

Hardware

Michelle Effros

Telecommunications

Alexander Fay

Transportation

Claire Gmachl

Telecommunications

Michael Hansen

Hardware

Tom Hyongsok Soh

Telecommunications

Matt Keyser

Energy

Kara Kockelman

Transportation

Paul Krajewski

Transportation

Der-Horng Lee

Transportation

Ihor Lys

Hardware

Larry Mianzo

Transportation

Chahab Nastar

Software

Bill Nguyen

Telecommunications

Rajesh Reddy

Telecommunications

Vincent Rijmen

Software

Jonathan Rosenberg

Telecommunications

Steven Shaw

Energy

Anna Stefanopoulou

Transportation

Lisa Su

Hardware

Vahid Tarokh

Telecommunications

Steve Tuecke

Software

Les Welch

Transportation

Sean Willems

Software

Neil Young

Entertainment

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