Independent Security Consultant
September 2002 — Present
Tsinghua
University
March 2004 — August 2006
Visiting Professor in Department of Computer Science
Princeton University
April 2003 — April 2004
Visiting Researcher at Princeton Architecture Laboratory for
Multimedia and Security (PALMS)
in Department of Electrical Engineering
NTT Multimedia
Communications Laboratories
April 1999 — August 2002
Director of Security Technologies
RSA Laboratories
August 1994 — February 1999
Senior Research Scientist
MIT
Cambridge, MA
September 1989 — June 1994
Ph.D. in Applied Mathematics
I was a graduate student in the Theory of
Computation Group
at MIT's Laboratory for Computer Science.
Beijing University
September 1985 — July 1989
B.S. in Applied Mathematics