@inproceedings{e863edd040d4438ba99037c74fc7989b,
title = "Improving the efficiency of impossible differential cryptanalysis of reduced camellia and MISTY1",
abstract = "We observe that when conducting an impossible differential cryptanalysis on Camellia and MISTY1, their round structures allow us to partially determine whether a candidate pair is useful by guessing only a small fraction of the unknown required subkey bits of a relevant round at a time, instead of guessing all of them at once. Taking advantage of the early abort technique, we improve a previous impossible differential attack on 6-round MISTY1 without the FL functions, and present impossible differential cryptanalysis of 11-round Camellia-128 without the FL functions, 13-round Camellia-192 without the FL functions and 14-round Camellia-256 without the FL functions. The presented results are better than any previously published cryptanalytic results on Camellia and MISTY1 without the FL functions.",
keywords = "Block cipher, Camellia, Impossible differential cryptanalysis, MISTY1",
author = "Jiqiang Lu and Jongsung Kim and Nathan Keller and Orr Dunkelman",
year = "2008",
doi = "10.1007/978-3-540-79263-5\_24",
language = "English",
isbn = "3540792627",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "370--386",
booktitle = "Topics in Cryptology - CT-RSA 2008 - The Cryptographers' Track at the RSA Conference 2008, Proceedings",
address = "Germany",
note = "Cryptographers' Track at the RSA Conference, CT-RSA 2008 ; Conference date: 08-04-2008 Through 11-04-2008",
}