Advertisement
Published in:
2009 | OriginalPaper | Chapter
Related-Key Cryptanalysis of the Full AES-192 and AES-256
Authors : Alex Biryukov, Dmitry Khovratovich
Published in: Advances in Cryptology – ASIACRYPT 2009
Publisher: Springer Berlin Heidelberg
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
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-Nikolić 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.
The extended version of this paper is available at
http://eprint.iacr.org/2009/317.pdf
.