Cryptography with cycling chaos

被引：44

作者：

Palacios, A ^{[1
]}

Juarez, H ^{[1
]}

机构：

[1] San Diego State Univ, Nonlinear Dynam Grp, Dept Math, San Diego, CA 92182 USA

来源：

PHYSICS LETTERS A | 2002年 / 303卷 / 5-6期

关键词：

coupled cell systems; cryptography; cycling chaos; message; security; symmetry;

D O I：

10.1016/S0375-9601(02)01323-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Periodic switching of cryptographic keys is commonly employed as a mechanism to enhance the security of encryption methods. In this Letter, cycling chaos, in which orbits of certain coupled iterated maps make periodic excursions between chaotic sets, is proposed as a new encryption approach that combines chaotic behavior with periodic switching of keys. The actual encryption process is similar to the one used by Baptista [Phys. Lett. A (1998) 50], except that now different chaotic attractors, and consequently different keys, are periodically switched to encrypt each character of a message. Advantages and disadvantages of this approach are also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：345 / 351

页数：7

共 18 条

[1] Cryptography with chaos [J].