量子电子学报2017，Vol.34Issue(4)：420-431,12.DOI:10.3969/j.issn.1007-5461.2017.04.007
基于离散分数阶角变换与关联混沌映射的双图像加密算法
Double image encryption algorithm based on discrete fractional angle transform and associated chaotic map
摘要
Abstract
In order to realize the synchronous secure encryption of two plains,a double image encryption algorithm based on the combination of discrete multi-parameters fractional angle transform and low dimension mapping is proposed.The composite coefficient matrix model is constructed based on discrete cosine transform (DCT) and Zigzag scanning,and the two plains are merged into an image by using inverse discrete cosine transform (IDCT).The initial condition values are calculated by using mean value of the plain pixel and external key with the coupled Logistic mapping,and two random sequences are outputted by iterating this coupling map.The position array disrupt mechanism is constructed by sorting two random sequences for scrambling compound plain.The scrambling cipher is decomposed into two new components,and the two new components are fused into temporary cipher by combining the chaotic random phase mask generated by logistic map with modulated phase mask.A new 2D multi-parameter fractional angle transform is constructed based on discrete fractional angle transform.The encryption model is designed and image encryption is completed.Results show that the proposed algorithm is more secure than the existing dual image encryption schemes,and has better anti-plaintext attack characteristics.关键词
图像与信息处理/双图像加密/离散多参数分数阶角变换/复合系数矩阵模型/调制相位掩码/混沌随机相位掩码Key words
image and information processing/double image encryption/discrete multi-parameters fractional angle transform/composite coefficient matrix model/modulation phase mask/chaotic random phase mask分类
信息技术与安全科学引用本文复制引用
郭静博,王彦超,周丽宴..基于离散分数阶角变换与关联混沌映射的双图像加密算法[J].量子电子学报,2017,34(4):420-431,12.基金项目
Supported by Science and Technology Key Projects of Henan Province(河南省科技计划重点项目,102102210416),Soft Science Research Project of Henan Province(河南省软科学研究计划项目,152400410323) （河南省科技计划重点项目,102102210416）
