30 citations · 67 across the 4 of their papers we have counts for
4 papers
Breaking a chaotic image encryption algorithm based on perceptron model
Yu Zhang, Chengqing Li, Qin Li +2
Recently, a chaotic image encryption algorithm based on perceptron model was proposed. The present paper analyzes security of the algorithm and finds that the equivalent secret key…
Cryptanalysis of an image encryption scheme based on the Hill cipher
Chengqing Li, Dan Zhang, Guanrong Chen
This paper studies the security of an image encryption scheme based on the Hill cipher and reports its following problems: 1) there is a simple necessary and sufficient condition t…
On the security of the Yen-Guo's domino signal encryption algorithm (DSEA)
Chengqing Li, Shujun Li, Der-Chyuan Lou +1
Recently, a new domino signal encryption algorithm (DSEA) was proposed for digital signal transmission, especially for digital images and videos. This paper analyzes the security o…
Chosen-Plaintext Cryptanalysis of a Clipped-Neural-Network-Based Chaotic Cipher
Chengqing Li, Shujun Li, Dan Zhang +1
In ISNN'04, a novel symmetric cipher was proposed, by combining a chaotic signal and a clipped neural network (CNN) for encryption. The present paper analyzes the security of this…