is a Japanese

cryptographer Cryptography, or cryptology (from grc, , translit=kryptós "hidden, secret"; and ''graphein'', "to write", or ''-logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of adver ...

and senior researcher for Mitsubishi Electric Company.

Career

While researching error-correcting codes in 1990, Matsui was inspired by

Eli Biham Eli Biham ( he, אלי ביהם) is an Israeli cryptographer and cryptanalyst, currently a professor at the Technion - Israel Institute of Technology Computer Science department. Starting from October 2008 and till 2013, Biham was the dean of t ...

and

Adi Shamir Adi Shamir ( he, עדי שמיר; born July 6, 1952) is an Israeli cryptographer. He is a co-inventor of the Rivest–Shamir–Adleman (RSA) algorithm (along with Ron Rivest and Len Adleman), a co-inventor of the Feige–Fiat–Shamir identifi ...

's differential cryptanalysis, and discovered the technique of

linear cryptanalysis In cryptography, linear cryptanalysis is a general form of cryptanalysis based on finding affine approximations to the action of a cipher. Attacks have been developed for block ciphers and stream ciphers. Linear cryptanalysis is one of the two mos ...

, published in 1993. Differential and linear cryptanalysis are the two major general techniques known for the cryptanalysis of block ciphers. The following year, Matsui was the first to publicly report an experimental cryptanalysis of

DES Des is a masculine given name, mostly a short form (hypocorism) of Desmond. People named Des include: People * Des Buckingham, English football manager * Des Corcoran, (1928–2004), Australian politician * Des Dillon (disambiguation), sever ...

, using the computing power of twelve

workstation A workstation is a special computer designed for technical or scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating systems. The term ''workstat ...

s over a period of fifty days. He is also the author of the MISTY-1 and MISTY-2 block ciphers, and contributed to the design of

Camellia ''Camellia'' (pronounced or ) is a genus of flowering plants in the family Theaceae. They are found in eastern and southern Asia, from the Himalayas east to Japan and Indonesia. There are more than 220 described species, with some controv ...

and

KASUMI Kasumi may refer to: Places * Kasumi, Hyōgo (香住), a former town in Hyōgo Prefecture, Japan * Kasumigaseki (霞が関 "Gate of Mist"), a district in downtown Tokyo * Kasumi, Jajce, a village in Bosnia and Herzegovina Other uses * Kasumi (gi ...

. For his achievements, Matsui got the 2012 RSA Conference Award for Excellence in Mathematics.

External links

* Modern cryptographers Living people Mitsubishi Electric people Year of birth missing (living people) {{crypto-bio-stub