309 citations
- Consejo Superior de Investigaciones CientíficasES35 papers
- Universidad de SalamancaES14 papers
- Instituto de Astrofísica de AndalucíaES8 papers
- California Institute of TechnologyUS5 papers
- European Southern ObservatoryCL4 papers
- Ruhr University BochumDE4 papers
- University of CopenhagenDK4 papers
- Aarhus UniversityDK3 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- National Institute for Subatomic PhysicsNL3 papers
- Nordic Optical TelescopeES3 papers
- Radboud University NijmegenNL3 papers
7 papers · 1 filter
Security problems with a chaos-based deniable authentication scheme
G. Alvarez
Recently, a new scheme was proposed for deniable authentication. Its main originality lied on applying a chaos-based encryption-hash parallel algorithm and the semi-group property…
Cryptanalyzing an improved security modulated chaotic encryption scheme using ciphertext absolute value
G. Alvarez, F. Montoya, M. Romera +1
This paper describes the security weakness of a recently proposed improved chaotic encryption method based on the modulation of a signal generated by a chaotic system with an appro…
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…