Article details

Title: Application of Chaos in Cryptography
Author(s): Cristian-Iulian Rîncu   Vasile-Gabriel Iana            

Abstract: The development of the new information security systems based on dynamical chaos theory represents a new research field in communications and information technology domain. Secret communication plays an increasing role in many fields of common life, like banking, industry, and telecommunications. In this paper we present some aspects regarding the application of chaos in cryptography. The essence of the theoretical and practical efforts which are done in this new field is represented by the idea that a chaos-based cryptosystem is capable to have similar performances regarding the classical methods based on computational techniques. We show that some of these performances are obtained using several well-known chaotic ciphers.

Keywords: dynamical chaotic systems, cryptography, digital communications.

[1] L.M. PECORA, T.L. CARROLL – Synchronization in Chaotic Systems, Phys. Rev. Lett., Vol. 64, No. 8, pp. 821-824, Feb. 1990
[2] G. ALVAREZ, S. LI – Some Basic Cryptographic Requirements for Chaos-Based Cryptosystems, International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, Vol. 16, No. 8, pp. 2129-2152, 2006
[3] G. ALVAREZ, L. HERNÁNDEZ, J. MUÑOZ, F. MONTOYA, S. LI – Security Analysis of Communication System Based on the Synchronization of Different Order Chaotic Systems, Physics Letters A, Vol. 345, No. 4-5, pp. 245-250, Oct. 2005
[4] M.S. BAPTISTA – Cryptography with Chaos, Physics Letters A, Vol. 240, No. 1-2, pp. 50-54, Mar. 1998
[5] K.W. WONG – A Fast Chaotic Cryptographic Scheme with Dynamic Look-Up Table, Physics Letters A, Vol. 298, No. 4, pp. 238-242, Jun. 2002
[6] K.W. WONG – A Combined Chaotic Cryptographic and Hashing Scheme, Physics Letters A, Vol. 307, No. 5-6, pp 292-298, Feb. 2003
[7] N.K. PAREEK, V. PATIDAR, K.K. SUD – Discrete Chaotic Cryptography Using External Key, Physics Letters A, Vol. 309, No. 1-2, pp. 75-82, Mar. 2003