Cryptology ePrint Archive: Report 2008/540
New Impossible Differential Attacks on AES
Jiqiang Lu and Orr Dunkelman and Nathan Keller and Jongsung Kim
Abstract: In this paper we apply impossible differential attacks to reduced
round AES. Using various techniques, including the early abort
approach and key schedule considerations, we significantly improve
previously known attacks due to Bahrak-Aref and Phan. The improvement
of these attacks leads to the best known impossible differential
attacks on 7-round AES-128 and AES-192, as well as to the best known
impossible differential attacks on 8-round AES-256.
Category / Keywords: secret-key cryptography / AES, Impossible differential cryptanalysis
Publication Info: INDOCRYPT 2008 (this is the full version)
Date: received 22 Dec 2008
Contact author: orr dunkelman at ens fr
Available format(s): PDF | BibTeX Citation
Version: 20081228:090100 (All versions of this report)
Short URL: ia.cr/2008/540
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