Welcome to the InfoSci Platform
Reference Hub1
Unmasking Optical Chaotic Cryptosystems Based on Delayed Optoelectronic Feedback

Unmasking Optical Chaotic Cryptosystems Based on Delayed Optoelectronic Feedback

Silvia Ortín, Luis Pesquera
Copyright: © 2011 |Pages: 29
ISBN13: 9781615207374|ISBN10: 1615207376|EISBN13: 9781615207381
DOI: 10.4018/978-1-61520-737-4.ch017
Cite Chapter Cite Chapter

MLA

Ortín, Silvia, and Luis Pesquera. "Unmasking Optical Chaotic Cryptosystems Based on Delayed Optoelectronic Feedback." Chaos Synchronization and Cryptography for Secure Communications: Applications for Encryption, edited by Santo Banerjee, IGI Global, 2011, pp. 386-414. https://doi.org/10.4018/978-1-61520-737-4.ch017

APA

Ortín, S. & Pesquera, L. (2011). Unmasking Optical Chaotic Cryptosystems Based on Delayed Optoelectronic Feedback. In S. Banerjee (Ed.), Chaos Synchronization and Cryptography for Secure Communications: Applications for Encryption (pp. 386-414). IGI Global. https://doi.org/10.4018/978-1-61520-737-4.ch017

Chicago

Ortín, Silvia, and Luis Pesquera. "Unmasking Optical Chaotic Cryptosystems Based on Delayed Optoelectronic Feedback." In Chaos Synchronization and Cryptography for Secure Communications: Applications for Encryption, edited by Santo Banerjee, 386-414. Hershey, PA: IGI Global, 2011. https://doi.org/10.4018/978-1-61520-737-4.ch017

Export Reference

Mendeley
Favorite

Abstract

The authors analyze the security of optical chaotic communication systems. The chaotic carrier is generated by a laser diode subject to delayed optoelectronic feedback. Transmitters with one and two fixed delay times are considered. A new type of neural networks, modular neural networks, is used to reconstruct the nonlinear dynamics of the transmitter from experimental time series in the single-delay case, and from numerical simulations in single and two-delay cases. The authors show that the complexity of the model does not increase when the delay time is increased, in spite of the very high dimension of the chaotic attractor. However, it is found that nonlinear dynamics reconstruction is more difficult when the feedback strength is increased. The extracted model is used as an unauthorized receiver to recover the message. Therefore, the authors conclude that optical chaotic cryptosystems based on optoelectronic feedback systems with several fixed time delays are vulnerable.

Request Access

You do not own this content. Please login to recommend this title to your institution's librarian or purchase it from the IGI Global bookstore.