@inproceedings{f3378802e4f44472bb952aa034f32a55,
title = "The delicate issues of addition with respect to XOR differences",
abstract = "In this paper we analyze the previous attacks on the block cipher SHACAL-1 and show that all the differential-based attacks fail due to mistreatment of XOR differences through addition. We show that the previously published differential and rectangle attacks on SHACAL-1 fail as some of the underlying differentials are impossible. The relatedkey rectangle attacks on the cipher generally fail, but if some conditions are imposed on the key (i.e., for a weak key class) they work. After identifying the flaws in previous attacks, we present possible fixes to these attacks. We then present some modified differentials which lead to a related-key rectangle attack which can be applied to 2504 weak keys. Our observations are then used to improve a related-key rectangle attack on IDEA by a factor of 2.",
keywords = "Block cipher, IDEA, Related-key rectangle attack, SHACAL-1",
author = "Gaoli Wang and Nathan Keller and Orr Dunkelman",
year = "2007",
doi = "10.1007/978-3-540-77360-3_14",
language = "אנגלית",
isbn = "3540773592",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "212--231",
booktitle = "Selected Areas in Cryptography - 14th International Workshop, SAC 2007, Revised Selected Papers",
address = "גרמניה",
note = "14th International Workshop on Selected Areas in Cryptography, SAC 2007 ; Conference date: 16-08-2007 Through 17-08-2007",
}