1.3k citations
- Consejo Superior de Investigaciones CientíficasES60 papers
- Universidad de SalamancaES17 papers
- Instituto de Astrofísica de AndalucíaES16 papers
- European Southern ObservatoryCL12 papers
- Radboud University NijmegenNL12 papers
- Centre National de la Recherche ScientifiqueFR10 papers
- Instituto de Astrofísica de CanariasES10 papers
- California Institute of TechnologyUS8 papers
- National Institute for Subatomic PhysicsNL8 papers
- University of the Basque CountryES8 papers
- IkerbasqueES6 papers
- Ruhr University BochumDE6 papers
6 papers · 1 filter
Cryptanalyzing a discrete-time chaos synchronization secure communication system
Gonzalo Alvarez, Fausto Montoya, Miguel Romera +1
This paper describes the security weakness of a recently proposed secure communication method based on discrete-time chaos synchronization. We show that the security is compromised…
Cryptanalysis of dynamic look-up table based chaotic cryptosystems
G. Alvarez, F. Montoya, M. Romera +1
In recent years many chaotic cryptosystems based on Baptista's seminal work have been proposed. We analyze the security of two of the newest and most interesting ones, which use a…
Cryptanalysis of a novel cryptosystem based on chaotic oscillators and feedback inversion
G. Alvarez, L. Hernandez, F. Montoya +1
An analysis of a recently proposed cryptosystem based on chaotic oscillators and feedback inversion is presented. It is shown how the cryptosystem can be broken when Duffing's osci…
Breaking parameter modulated chaotic secure communication system
G. Alvarez, F. Montoya, M. Romera +1
This paper describes the security weakness of a recently proposed secure communication method based on parameter modulation of a chaotic system and adaptive observer-based synchron…
Breaking a secure communication scheme based on the phase synchronization of chaotic systems
G. Alvarez, F. Montoya, G. Pastor +1
A security analysis of a recently proposed secure communication scheme based on the phase synchronization of chaotic systems is presented. It is shown that the system parameters di…
The Host Galaxy of GRB 990712
Lise Christensen, Jens Hjorth, Javier Gorosabel +4
We present a comprehensive study of the z=0.43 host galaxy of GRB 990712, involving ground-based photometry, spectroscopy, and HST imaging. The broad-band UBVRIJHKs photometry is u…