Cryptanalysis of the two-dimensional circulation encryption algorithm

Authors:
Christophe De Cannière;Joseph Lano;Bart Preneel
Affiliations:
Computer Security and Industrial Cryptography (COSIC), Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Leuven-Heverlee, Belgium;Computer Security and Industrial Cryptography (COSIC), Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Leuven-Heverlee, Belgium;Computer Security and Industrial Cryptography (COSIC), Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Leuven-Heverlee, Belgium
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2005

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Abstract

We analyze the security of the two-dimensional circulation encryption algorithm (TDCEA), recently published by Chen et al. in this journal. We show that there are several flaws in the algorithm and describe some attacks. We also address performance issues in current cryptographic designs.