IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Regular Section
Correlation Power Analysis and Countermeasure on the Stream Cipher Enocoro-128v2
Shugo MIKAMIHirotaka YOSHIDADai WATANABEKazuo SAKIYAMA
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2013 Volume E96.A Issue 3 Pages 697-704

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Abstract

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.

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© 2013 The Institute of Electronics, Information and Communication Engineers
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