2.1k citations · 3.6k across the 31 of their papers we have counts for
6 papers · 1 filter
Sharing secret color images using cellular automata with memory
Gonzalo Alvarez, Luis Hernandez, Angel Martin
A {k,n}-threshold scheme based on two-dimensional memory cellular automata is proposed to share images in a secret way. This method allows to encode an image into n shared images s…
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…
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…
Cryptographic requirements for chaotic secure communications
Gonzalo Alvarez, Shujun Li
In recent years, a great amount of secure communications systems based on chaotic synchronization have been published. Most of the proposed schemes fail to explain a number of feat…