Welcome to the resource topic for 2009/317
Title:
Related-key Cryptanalysis of the Full AES-192 and AES-256
Authors: Alex Biryukov, Dmitry Khovratovich
Abstract:In this paper we present two related-key attacks on the full AES. For AES-256 we show the first key recovery attack that works for all the keys and has 2^{99.5} time and data complexity, while the recent attack by Biryukov-Khovratovich-Nikolic works for a weak key class and has much higher complexity. The second attack is the first cryptanalysis of the full AES-192. Both our attacks are boomerang attacks, which are based on the recent idea of finding local collisions in block ciphers and enhanced with the boomerang switching techniques to gain free rounds in the middle.
ePrint: https://eprint.iacr.org/2009/317
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