2.1k citations · 3.6k across the 31 of their papers we have counts for
4 papers · 1 filter
On the security defects of an image encryption scheme
Chengqing Li, Shujun Li, Muhammad Asim +3
This paper studies the security of a recently-proposed chaos-based image encryption scheme, and points out the following problems: 1) there exist a number of invalid keys and weak…
Trident, a new pseudo random number generator based on coupled chaotic maps
A. B. Orue, G. Alvarez, A. Guerra +3
This article describes a new family of cryptographically secure pseudorandom number generators, based on coupled chaotic maps, that will serve as keystream in a stream cipher. The…
A Basic Framework for the Cryptanalysis of Digital Chaos-Based Cryptography
David Arroyo, Gonzalo Alvarez, Veronica Fernandez
Chaotic cryptography is based on the properties of chaos as source of entropy. Many different schemes have been proposed to take advantage of those properties and to design new str…
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…