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Fault Round Modification Analysis of the Advanced Encryption Standard

Abstract : This paper describes a new physical analysis technique based on changing the number of the AES rounds. It is an extension of the already known Round Reduction Analysis techniques. Round Modification Analysis is a specific algorithm modification attack. However, the cryptanalysis of the obtained erroneous ciphertexts resorts to the differentiation techniques used by Differential Fault Analysis. Faults were induced thanks to a laser in a software AES, either on the round counter itself or on the reference of its total round number, to obtain an increase or a decrease in the number of rounds. We report here successful attacks and their corresponding cryptanalysis.
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Submitted on : Tuesday, October 16, 2012 - 3:59:39 PM
Last modification on : Thursday, March 17, 2022 - 10:08:36 AM



Jean-Max Dutertre, Amir Pasha Mirbaha, David Naccache, Anne-Lise Ribotta, Assia Tria, et al.. Fault Round Modification Analysis of the Advanced Encryption Standard. Hardware-Oriented Security and Trust (HOST), 2012, Jun 2012, San Francisco, United States. pp.140--145, ⟨10.1109/HST.2012.6224334⟩. ⟨emse-00742567⟩



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