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Published in:
2006 | OriginalPaper | Chapter
Improved Collision Attack on Reduced Round Camellia
Authors : Guan Jie, Zhang Zhongya
Published in: Cryptology and Network Security
Publisher: Springer Berlin Heidelberg
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Camellia is a 128-bit block cipher which has been selected as an international standard by ISO/IEC and a European encryption standard by the NESSIE project. Wu Wenling presented the collision attack on reduced-round Camellia in 2004, the 128-bit key of 6 rounds Camellia can be recovered with 2
10
chosen plaintexts and 2
15
encryptions. The improved collision attack on 6 rounds Camellia which based on four 4-round distinguishers is presented in this paper. This attack requires less than 2
10.6
chosen plaintexts and 2
11.5
encryptions.