On practical second-order power analysis attacks for block ciphers

Authors:
Renato Menicocci;Andrea Simonetti;Giuseppe Scotti;Alessandro Trifiletti
Affiliations:
Fondazione Ugo Bordoni, Roma, Italy;Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Roma, Italy;Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Roma, Italy;Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Roma, Italy
Venue:
ICICS'10 Proceedings of the 12th international conference on Information and communications security
Year:
2010

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Abstract

We propose a variant for a published second-order power analysis attack [1] on a software masked implementation of AES-128 [2]. Our approach can, with reduced complexity, produce the same result as the original one, without requiring any additional tool. The validity of the proposed variant is confirmed by experiments, whose results allow for a comparison between the two approaches.