Breaking an orbit-based symmetric cryptosystem

Authors:
Ercan Solak;Rhouma Rhouma;Safya Belghith
Affiliations:
Computer Science and Engineering, Isik University, Turkey;Syscom Laboratory, Ecole Nationale d'Ingénieurs de Tunis, Tunisia;Syscom Laboratory, Ecole Nationale d'Ingénieurs de Tunis, Tunisia
Venue:
Mathematical and Computer Modelling: An International Journal
Year:
2011

Citing 3
Cited 1

Introduction to algorithms

Introduction to algorithms
Handbook of Applied Cryptography

Handbook of Applied Cryptography
Novel orbit based symmetric cryptosystems

Mathematical and Computer Modelling: An International Journal

Secure chaotic system with application to chaotic ciphers

Information Sciences: an International Journal

Quantified Score

Hi-index	0.98

Visualization

Abstract

We report a break for a recently proposed class of cryptosystems. The cryptosystem uses constant points of a periodic secret orbit to encrypt the plaintext. In order to break the system, it suffices to sort the constant points and find the initial fixed point. We also report breaks for modified versions of the cryptosystem. In addition, we discuss some efficiency issues of the cryptosystem.