Optical digital chaos cryptography

Arenas Pingarrón, Álvaro and González Marcos, Ana and Rivas Moscoso, José Manuel and Martín Pereda, José Antonio (2007). Optical digital chaos cryptography. In: "Optics and photonics for couterterrorism and crime fighting III", 17/09/2007, Florence, Italy.

Description

Title: Optical digital chaos cryptography
Author/s:
  • Arenas Pingarrón, Álvaro
  • González Marcos, Ana
  • Rivas Moscoso, José Manuel
  • Martín Pereda, José Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: Optics and photonics for couterterrorism and crime fighting III
Event Dates: 17/09/2007
Event Location: Florence, Italy
Title of Book: Proceedings of SPIE
Date: 8 October 2007
Volume: 6741
Subjects:
Freetext Keywords: Cryptography ; Chaos ; Code division multiplexing ; Phase shift keying ; Receivers ; Telecommunications ; Transmitters
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work we present a new way to mask the data in a one-user communication system when direct sequence - code division multiple access (DS-CDMA) techniques are used. The code is generated by a digital chaotic generator, originally proposed by us and previously reported for a chaos cryptographic system. It is demonstrated that if the user's data signal is encoded with a bipolar phase-shift keying (BPSK) technique, usual in DS-CDMA, it can be easily recovered from a time-frequency domain representation. To avoid this situation, a new system is presented in which a previous dispersive stage is applied to the data signal. A time-frequency domain analysis is performed, and the devices required at the transmitter and receiver end, both user-independent, are presented for the optical domain.

More information

Item ID: 22779
DC Identifier: http://oa.upm.es/22779/
OAI Identifier: oai:oa.upm.es:22779
Official URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=823547
Deposited by: Biblioteca ETSI Telecomunicación
Deposited on: 10 Mar 2014 07:25
Last Modified: 21 Apr 2016 20:21
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