Related-Key Cryptanalysis of the Full AES-192 and AES-256

Biryukov, Alex; Khovratovich, Dmitry

Reference : Related-Key Cryptanalysis of the Full AES-192 and AES-256


	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Computer science
	To cite this reference:	http://hdl.handle.net/10993/17079

Title :	Related-Key Cryptanalysis of the Full AES-192 and AES-256
Language :	English
Author, co-author :	Biryukov, Alex [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
	Khovratovich, Dmitry [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
Publication date :	2009
Main document title :	ASIACRYPT 2009
Publisher :	Springer
Pages :	1-18
Peer reviewed :	Yes
Audience :	International
ISBN :	978-3-642-10365-0
Event name :	ASIACRYPT 2009
Event date :	December 6-10, 2009
Event place (city) :	Tokyo
Event country :	Japan
Keywords :	[en] related-key attacks ; AES ; boomerang
Abstract :	[en] 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.
Permalink :	http://hdl.handle.net/10993/17079
Commentary :	5912 Advances in Cryptology - ASIACRYPT 2009, 15th International Conference on the Theory and Application of Cryptology and Information Security

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