International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Yuechuan Wei

Publications

Year
Venue
Title
2010
EPRINT
Impossible Differential Cryptanalysis on E2
Yuechuan Wei Ruilin Li Ping Li Chao Li
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.

Coauthors

Ping Li (1)
Ruilin Li (1)
Chao Li (1)