Development of On-line/off-line signature

Speaker:        Prof. Lein Harn
                University of Missouri-Kansas City, USA

Title:          "Development of On-line/off-line signature"

Date:           Monday, June 14 2004

Time:           11:00 - 12:00

Venue:          Room 3464 (COMP and Math Conference Room)
                (near lift nos. 25/26)
                HKUST

Abstract:

On-line/off-line signature schemes have been proposed in 1987 inotially.  In
this talk, I will introduce the development history of this schemes.  I will
also introduce the recent scheme proposed by A. Shamir in 2001 based on a
one-way trapdoor function.  In addition, I will discuss my recent research
on some improvements of Shamir's scheme based on a modified one-way trapdoor
function and its applications.


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Biography

Prof. Harn received his B.S. from the National Taiwan University in 1977,
his M.S. from the State University of New York at Stony Brook in l980, and
his Ph.D. from the University of Minnesota in 1984, all in electrical
engineering.

He was assistant professor at the University of Missouri - Kansas City &
Columbia from l984 to 1986, visiting associate professor at the National
Cheng Kung University from 1986 to 1987, assistant professor at the
University of Missouri-Kansas City from 1987 to 1990, associate professor
with tenure at the University of Missouri-Kansas City from 1990 to 1995, and
full professor at the Computer Networking Department of the University of
Missouri-Kansas City since 1995.

Prof. Harn's main research area is cryptography.