Breaking two secure communication systems based on chaotic masking

Author

Álvarez, G. ; Montoya, F. ; Romera, M. ; Pastor, G.

Author_Institution

Instituto de Fisica, Consejo Superior de Investigaciones Cientificas, Madrid, Spain

Volume

51

Issue

10

fYear

2004

Firstpage

505

Lastpage

506

Abstract

This paper describes the security weakness of two generalized nonlinear state-space observers-based approaches for both chaos synchronization and secure communication, using chaotic masking and chaotic modulation of a Lorenz system. We show that the security is compromised without any knowledge of the chaotic system parameter values and even without knowing the transmitter structure.

Keywords

chaotic communication; cryptography; nonlinear systems; state-space methods; synchronisation; telecommunication security; Lorenz system; chaos synchronization; chaotic masking; chaotic modulation; chaotic system parameter values; cryptography; data security; nonlinear state-space observers; nonlinear systems; secure communication systems; state-space methods; telecommunication; transmitter structure; Chaos; Chaotic communication; Communication system security; Cryptography; Data security; Information security; Nonlinear systems; Oscillators; State-space methods; Transmitters; Chaos; cryptography; nonlinear systems; security of data; state-space methods; telecommunication;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2004.836047

Filename

1344241