Correlation Power Analysis and Countermeasure on the Stream Cipher Enocoro-128v2

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概要

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• Enocoro-128v2 is a lightweight stream cipher submitted to Cryptography Research and Evaluation Committees (CRYPTREC). In this paper, we first describe a side channel attack on Enocoro-128v2. We show that all secret key bytes of Enocoro-128v2 can be recovered by correlation power analysis, and it is shown by an experiment that around 6000 traces are needed to recover the secret key on SASEBO-GII (Side-channel Attack Standard Evaluation Board). We second propose a countermeasure with threshold implementation technique, which allows Enocoro-128v2 to be resistant against correlation power analysis as long as less than 105 traces are used.

著者

• SAKIYAMA Kazuo

  University of Electro-Communications

• Watanabe Dai

  Hitachi Research Laboratory Hitachi Ltd.

• MIKAMI Shugo

  Hitachi Yokohama Research Laboratory

• YOSHIDA Hirotaka

  Hitachi Yokohama Research Laboratory

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