A MODEL FOR REPRESENTATION OF DIFFERENTIAL OPERATION OF SP-STRUCTURE BLOCK CIPHERS

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GHAEMI BAFGHI A.; SADEGHIAN BABAK

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AMIRKABIR Year:2004 | Volume:15 | Issue:58-A (TOPICS IN: ELECTRICAL ENGINEERING) Page(s): 352-369

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Information Journal Paper

Title

A MODEL FOR REPRESENTATION OF DIFFERENTIAL OPERATION OF SP-STRUCTURE BLOCK CIPHERS

Author(s)

GHAEMI BAFGHI A. | SADEGHIAN BABAK | Issue Writer Certificate

Keywords

DIFFERENTIAL CRYPTANALYSISQ4

SUBSTITUTION-PERMUTATION STRUCTUREQ4

SERPENT BLOCK CIPHERQ4

ANT COLONY TECHNIQUEQ4

Abstract

DIFFERENTIAL CRYPTANALYSIS is a common method which can be applied for the evaluation of bolck ciphers security. In this paper, we introduce a model for representing a SP-Structure block cipher's mapping differential characteristics. This model represents the differential operation of the cipher algorithm through a weighted directed graph, while finding the best differential characteristics of the cipher will be equivalent to finding the shortest path between the source and destination nodes of that graph. We then employ ANT COLONY TECHNIQUE to find the shortest path of the graph.Through applying this method, we managed to find some differential characteristics of 4.round, 5-round and 6-round SERPENT BLOCK CIPHER. These characteristics are compared with other published characteristics. We show that our characteristics give a better probability than those published in six cases, and have the same probability in two other cases. This comparison explains the efficacy of our method to finding differential characteristics with high probability.

Cites

DETERMINING DIFFERENTIAL CHARACTERISTICS OF BLOCK CIPHERS USING HOPFIELD NETWORK AND BOLTZMANN MACHINE

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APA: Copy

GHAEMI BAFGHI, A., & SADEGHIAN, BABAK. (2004). A MODEL FOR REPRESENTATION OF DIFFERENTIAL OPERATION OF SP-STRUCTURE BLOCK CIPHERS. AMIRKABIR, 15(58-A (TOPICS IN: ELECTRICAL ENGINEERING)), 352-369. SID. https://sid.ir/paper/694/en

Vancouver: Copy

GHAEMI BAFGHI A., SADEGHIAN BABAK. A MODEL FOR REPRESENTATION OF DIFFERENTIAL OPERATION OF SP-STRUCTURE BLOCK CIPHERS. AMIRKABIR[Internet]. 2004;15(58-A (TOPICS IN: ELECTRICAL ENGINEERING)):352-369. Available from: https://sid.ir/paper/694/en

IEEE: Copy

A. GHAEMI BAFGHI, and BABAK SADEGHIAN, “A MODEL FOR REPRESENTATION OF DIFFERENTIAL OPERATION OF SP-STRUCTURE BLOCK CIPHERS,” AMIRKABIR, vol. 15, no. 58-A (TOPICS IN: ELECTRICAL ENGINEERING), pp. 352–369, 2004, [Online]. Available: https://sid.ir/paper/694/en

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