2008 | OriginalPaper | Buchkapitel
New Impossible Differential Attacks on AES
verfasst von : Jiqiang Lu, Orr Dunkelman, Nathan Keller, Jongsung Kim
Erschienen in: Progress in Cryptology - INDOCRYPT 2008
Verlag: Springer Berlin Heidelberg
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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 better impossible differential attacks on 7-round AES-128 and AES-192, as well as to better impossible differential attacks on 8-round AES-256.