215 citations · 1k across the 21 of their papers we have counts for
6 papers · 1 filter
Network analysis of chaotic dynamics in fixed-precision digital domain
Chengqing Li, Jinhu Lu, Guanrong Chen
When implemented in the digital domain with time, space and value discretized in the binary form, many good dynamical properties of chaotic systems in continuous domain may be degr…
Cryptanalysis of a new chaotic cryptosystem based on ergodicity
David Arroyo, Gonzalo Alvarez, Shujun Li +2
This paper analyzes the security of a recent cryptosystem based on the ergodicity property of chaotic maps. It is shown how to obtain the secret key using a chosen-ciphertext attac…
Cryptanalysis of a computer cryptography scheme based on a filter bank
David Arroyo, Chengqing Li, Shujun Li +1
This paper analyzes the security of a recently-proposed signal encryption scheme based on a filter bank. A very critical weakness of this new signal encryption procedure is exploit…
Cryptanalysis of an image encryption scheme based on a new total shuffling algorithm
David Arroyo, Chengqing Li, Shujun Li +2
Chaotic systems have been broadly exploited through the last two decades to build encryption methods. Recently, two new image encryption schemes have been proposed, where the encry…
Cryptanalysis of two chaotic encryption schemes based on circular bit shift and XOR operations
Chengqing Li, Shujun Li, Gonzalo Álvarez +2
Recently two encryption schemes were proposed by combining circular bit shift and XOR operations, under the control of a pseudorandom bit sequence (PRBS) generated from a chaotic s…
Cryptanalysis of a chaotic block cipher with external key and its improved version
Chengqing Li, Shujun Li, Gonzalo Álvarez +2
Recently, Pareek et al. proposed a symmetric key block cipher using multiple one-dimensional chaotic maps. This paper reports some new findings on the security problems of this kin…