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Impossible Differential Cryptanalysis on E2
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Abstract: | E2 is a 128-bit block cipher which employs Feistel structure and 2-round SPN in round function. It is an AES candidate and was designed by NTT. In the former publications, E2 is supposed no more than 5-round impossible differential. In this paper, we describe some 6-round impossible differentials of E2. By using the 6-round impossible differential, we first present an attack on 9-round reduced version of E2-256 without IT Function(the initial transformation) and FT-Function(the Final transformation) function. |
BibTeX
@misc{eprint-2010-23102, title={Impossible Differential Cryptanalysis on E2}, booktitle={IACR Eprint archive}, keywords={secret-key cryptography / Block cipher, E2, Impossible differential attack}, url={http://eprint.iacr.org/2010/201}, note={ wych004@163.com 14717 received 10 Apr 2010, last revised 17 Apr 2010}, author={Yuechuan Wei and Ruilin Li and Ping Li and Chao Li}, year=2010 }