2.1k citations · 3.6k across the 31 of their papers we have counts for
8 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…
Breaking a chaos-based secure communication scheme designed by an improved modulation method
Shujun Li, Gonzalo Álvarez, Guanrong Chen
Recently Bu and Wang [Chaos, Solitons & Fractals 19 (2004) 919] proposed a simple modulation method aiming to improve the security of chaos-based secure communications against retu…
Breaking projective chaos synchronization secure communication using filtering and generalized synchronization
Gonzalo Alvarez, Shujun Li, F. Montoya +2
This paper describes the security weaknesses of a recently proposed secure communication method based on chaotic masking using projective synchronization of two chaotic systems. We…
Breaking a chaos-noise-based secure communication scheme
Shujun Li, Gonzalo Álvarez, Guanrong Chen +1
This paper studies the security of a secure communication scheme based on two discrete-time intermittently-chaotic systems synchronized via a common random driving signal. Some sec…
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…
Estimating short-time period to break different types of chaotic modulation based secure communications
Gonzalo Alvarez, Shujun Li
In recent years, chaotic attractors have been extensively used in the design of secure communication systems. One of the preferred ways of transmitting the information signal is bi…