Finding Higher Order Differentials of MISTY1

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概要

• 論文の詳細を見る

• MISTY1 is a 64-bit block cipher that has provable security against differential and linear cryptanalysis. MISTY1 is one of the algorithms selected in the European NESSIE project, and it is recommended for Japanese e-Government ciphers by the CRYPTREC project. In this paper, we report on 12th order differentials in 3-round MISTY1 with FL functions and 44th order differentials in 4-round MISTY1 with FL functions both previously unknown. We also report that both data complexity and computational complexity of higher order differential attacks on 6-round MISTY1 with FL functions and 7-round MISTY1 with FL functions using the 46th order differential can be reduced to as much as 1/22 of the previous values by using multiple 44th order differentials simultaneously.

• The Institute of Electronics, Information and Communication Engineersの論文

著者

• TSUNOO Yukiyasu

  NEC Corporation

• SAITO Teruo

  NEC Software Hokuriku, Ltd.

• Saito Teruo

  Nec Software Hokuriku Ltd.

• Kawabata Takeshi

  Nec Software Hokuriku Ltd.

• NAKAGAWA Hirokatsu

  NEC Software Hokuriku, Ltd.

関連論文

• Security Analysis of 7-Round MISTY1 against Higher Order Differential Attacks
• Access-Driven Cache Attack on the Stream Cipher DICING Using the Chosen IV
• A low-cost LSI design of AES against DPA attack by hiding power information (第21回 回路とシステム軽井沢ワークショップ論文集) -- (実現技術)
• An Unequal Secure Encryption Scheme for H.264/AVC Video Compression Standard
• Access-Driven Cache Attack on the Stream Cipher DICING Using the Chosen IV
• Results of Linear Cryptanalysis Using Linear Sieve Methods
• Security Analysis of 7-Round MISTY1 against Higher Order Differential Attacks
• Higher Order Differential Attack on 6-Round MISTY1
• Finding Higher Order Differentials of MISTY1
• Finding Higher Order Differentials of MISTY1

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