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Mitsuru Matsui

Linear cryptanalysis became one of the standard general techniques for evaluating block ciphers. Matsui's work helped turn cryptanalysis into an empirical discipline that can expose weaknesses before a primitive becomes infrastructure.

Linear cryptanalysis

Mitsuru Matsui is a cryptographer at Mitsubishi Electric. Japan's Patent Office describes his development of linear cryptanalysis and his experimental break of the then-U.S. encryption standard DES. Linear and differential cryptanalysis are now foundational approaches for analysing many block ciphers.

Applied cipher design

Mitsubishi Electric's technical publications identify Matsui as a contributor to MISTY, KASUMI and Camellia cipher development. These projects connect basic cryptanalytic research with the design and standardization of cryptography for communications systems.

Timeline

  • 1993Publishes the technique known as linear cryptanalysis.
  • 1994Reports a public experimental cryptanalysis of DES using linear methods.
  • 1995MISTY1 is designed at Mitsubishi Electric.
  • 2012Receives the RSA Conference Award for Excellence in Mathematics.
Mitsuru Matsui
Type
Person
Era
1990s-Present
Known for
Linear cryptanalysis; DES cryptanalysis; MISTY cipher family
Tags
cryptography, cryptanalysis, linear-cryptanalysis, mobile-security
Created by Joas A Santos · Something wrong or want it removed? Open an issue.