A chaos-based block cipher with Feistel structure

Author

Jun Peng ; Liang Lei ; Qi Han ; Rong Jia

Author_Institution

Coll. of Electr. & Inf. Eng., Chongqing Univ. of Sci. & Technol., Chongqing, China

fYear

2014

fDate

18-20 Aug. 2014

Firstpage

343

Lastpage

348

Abstract

In this paper, based on chaotic systems and balanced Feistel network structure, a symmetric block cipher with 256-bit secret key is proposed. The cipher operates on 64-bit plaintext blocks through 16 rounds computing. Within the kernel component of the cipher, i.e., round function F, a hyperchaotic system with four-wing attractors is used to improve the complicated and unpredictability of the ciphertexts. Furthermore, a chaos-based S-Box is adopted for generating the round subkeys. The numerical simulation results and security analysis has shown that the proposed cipher possess the desirable cryptographic properties and can be used in information security field.

Keywords

cryptography; numerical analysis; balanced Feistel network structure; chaos based block cipher; chaotic systems; ciphertexts; desirable cryptographic properties; four wing attractors; hyperchaotic system; information security field; kernel component; numerical simulation; plaintext blocks; round subkeys; security analysis; symmetric block cipher; Algorithm design and analysis; Chaotic communication; Ciphers; Encryption; Block cipher; Feistel structure; Hyperchaotic system; Information security; S-Box;

fLanguage

English

Publisher

ieee

Conference_Titel

Cognitive Informatics & Cognitive Computing (ICCI*CC), 2014 IEEE 13th International Conference on

Conference_Location

London

Print_ISBN

978-1-4799-6080-4

Type

conf

DOI

10.1109/ICCI-CC.2014.6921481

Filename

6921481