On a Structure of Block Ciphers with Provable Security against Differential and Linear Cryptanalysis (Special Section on Cryptography and Information Security)

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概要

• 論文の詳細を見る

• We introduce a new methodology for designing block ciphers with provable security against differential and linear cryptanalysis. It is based on three new principles: change of the location of round functions, round functions with recursive structure, and substitution boxes of different sizes. The first realizes parallel computation of the round functions without losing provable security, and the second reduces the size of substitution boxes; moreover, the last is expected to make algebraic attacks difficult. This structure gives us a simple and effective method for designing secure and fast block ciphers in hardware as well as in software implementation. Block encryption algorithm MISTY was designed on the basis of this methodology.

• 社団法人電子情報通信学会の論文
• 1999-01-25

著者

• Matsui Mitsuru

  Information Technology R&d Center Mitsubishi Electric Corporation

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• A Small and Fast Software Implementation of Elliptic Curve Cryptosystems over GF(p) on a 16-Bit Microcomputer (Special Section on Cryptography and Information Security)
• On a Structure of Block Ciphers with Provable Security against Differential and Linear Cryptanalysis (Special Section on Cryptography and Information Security)
• Linear Cryptanalysis of Block Cipher Xenon(Special Section on Cryptography and Information Security)
• FOREWORD

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