文献类型：期刊文献

英文题名：Image encryption with cross colour field algorithm and improved cascade chaos systems

作者：Jia, Meng[1]

第一作者：贾蒙

通讯作者：Jia, M[1]

机构：[1]Xinxiang Univ, Dept Elect Engn, Xinxiang 450003, Henan, Peoples R China

第一机构：新乡学院机电工程学院

通讯机构：[1]corresponding author), Xinxiang Univ, Dept Elect Engn, Xinxiang 450003, Henan, Peoples R China.|[1107111]新乡学院机电工程学院;[11071]新乡学院;

年份：2020

卷号：14

期号：5

起止页码：973-981

外文期刊名：IET IMAGE PROCESSING

收录：;EI(收录号：20201608432137);Scopus(收录号：2-s2.0-85083266574);WOS:【SCI-EXPANDED(收录号:WOS:000526816700018)】；

基金：This research jointly supported by the National Nature Science Foundation of China (grant no. 61501391), Nature Science Foundation of Henan Province) (182300410258).

语种：英文

外文关键词：cryptography; chaos; bifurcation; image colour analysis; matrix algebra; cross colour field diffusion algorithm; pixel correlation; plain text attack; image encryption; cascade chaos systems; encryption keyspace; cross colour field confusion method; R G B colour matrixes; improved cascade system; key sequence generator; pixels scrambling map; bifurcation diagrams; brute force attack; known plain attack; ciphertext attack; differential attack; security analysis

摘要：In this study, the critical factor of the chaos system has been analysed to improve the randomicity of the encryption keyspace. Several chaos systems have been integrated together with a linear function to form a much more efficient key sequence generator. This study also presents the cross colour field confusion method which scrambles the pixels among the R G B colour matrixes. In this way, the range of the pixels scrambling map is extended to three matrixes compared to the traditional pixels scrambling schemes which do pixels scrambling in its own colour matrix. The experiment results show that the improved cascade system has better bifurcation diagrams. The cross colour field diffusion algorithm makes the encrypted image has little pixel correlation and no information leakage. The experiment results justify that the novel cross colour confusion scheme with improved chaos systems has a good ability to resist brute force attack, known plain attack, chosen plain text attack, chosen ciphertext attack and differential attack. The security analysis demonstrates that the proposed approach has satisfactory properties in image encryption.