IEEJ Transactions on Electronics, Information and Systems
Online ISSN : 1348-8155
Print ISSN : 0385-4221
ISSN-L : 0385-4221
<Electrical and Electronic Circuit, LSI>
A Countermeasure Against Side Channel Attack on Cryptographic LSI using Clock Variation Mechanism
Toshiya AsaiMitsuru ShiozakiTakaya KubotaTakeshi FujinoMasaya Yoshikawa
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2013 Volume 133 Issue 12 Pages 2134-2142


The encryption standard, which has been widely used, is computationally unbreakable. However, the implementation of encryption can cause vulnerability to side-channel attacks. Therefore, various measures against side-channel attacks have been proposed. This paper proposes a new measure which uses randomized clocks for encryption hardware. This method can be used in conjunction with other known measures, and increases the resistance to attack. Experimental results prove the validity of the proposed method.

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© 2013 by the Institute of Electrical Engineers of Japan
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