Abstract
In this paper we investigate implementations of ARIA on an 8-bit smartcard. Our investigation focuses on the resistance against different types of differential power analysis (DPA) attacks. We show that an unprotected implementation of ARIA allows to deduce the secret key with a low number of measurements. In order to thwart these simple DPA attacks, we mask and randomize the ARIA implementation on the smartcard. It turns out that due to the structure of ARIA, a masked implementation requires significantly more resources than an unprotected implementation. However, the masked and randomized implementation provides a high resistance against power analysis attacks.
The work described in this paper has been supported in part by the University IT Research Center project and the Austrian Science Fund (FWF) under grant number P16952.
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Yoo, H., Herbst, C., Mangard, S., Oswald, E., Moon, S. (2007). Investigations of Power Analysis Attacks and Countermeasures for ARIA. In: Lee, J.K., Yi, O., Yung, M. (eds) Information Security Applications. WISA 2006. Lecture Notes in Computer Science, vol 4298. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-71093-6_13
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DOI: https://doi.org/10.1007/978-3-540-71093-6_13
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