@inproceedings{d00843a0798146aa8d750da33eeff613,
title = "Differential attack on five rounds of the SC2000 block cipher",
abstract = "SC2000 is a 128-bit block cipher with a user key of 128, 192 or 256 bits, which employs a total of 6.5 rounds if a 128-bit user key is used. It is a CRYPTREC recommended e-government cipher. In this paper we describe one 4.75-round differential characteristic with probability $2^{126}$ of SC2000 and thirty 4.75-round differential characteristics with probability $2^{¿127}$. Finally, we exploit these 4.75-round differentials to conduct a differential cryptanalysis attack on a 5-round reduced version of SC2000 when used with a 128-bit key. The attack suggests for the first time that the safety margin of SC2000 with a 128-bit key decreases below one and a half rounds.",
author = "J. Lu",
year = "2010",
doi = "10.1007/978-3-642-16342-5_4",
language = "English",
isbn = "978-3-642-16341-8",
series = "Lecture Notes in Computer Science",
publisher = "Springer",
pages = "50--59",
editor = "F. Bao and M. Yung",
booktitle = "Information Security and Cryptology (5th International Conference, Inscrypt 2009, Beijing, China, December 12-15, 2009. Revised Selected Papers)",
address = "Germany",
}