@inproceedings{e27bd5da074944a2b5130298a80e33d8,
title = "Related-key rectangle attacks on reduced AES-192 and AES-256",
abstract = "This paper examines the security of AES-192 and AES-256 against a related-key rectangle attack. We find the following new attacks: 8-round reduced AES-192 with 2 related keys, 10-round reduced AES-192 with 64 or 256 related keys and 9-round reduced AES-256 with 4 related keys. Our attacks reduce the complexity of earlier attacks presented at FSE 2005 and Eurocrypt 2005: for reduced AES-192 with 8 rounds, we decrease the required number of related keys from 4 to 2 at the cost of a higher data and time complexity; we present the first shortcut attack on AES-192 reduced to 10 rounds; for reduced AES-256 with 9 rounds, we decrease the required number of related keys from 256 to 4 and both the data and time complexity at the cost of a smaller number of attacked rounds. Furthermore, we point out some flaw in the 9-round AES-192 attack presented at Eurocrypt 2005, show how to fix it and enhance the attack in terms of the number of related keys.",
keywords = "AES, Block ciphers, Cryptanalysis, Related-key rectangle attack",
author = "Jongsung Kim and Seokhie Hong and Bart Preneel",
year = "2007",
doi = "10.1007/978-3-540-74619-5_15",
language = "English",
isbn = "354074617X",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "225--241",
booktitle = "Fast Software Encryption - 14th International Workshop, FSE 2007",
note = "14th International Workshop on Fast Software Encryption, FSE 2007 ; Conference date: 26-03-2007 Through 28-03-2007",
}