期刊名称：International Journal of Signal Processing, Image Processing and Pattern Recognition
印刷版ISSN：2005-4254
出版年度：2015
卷号：8
期号：7
页码：327-340
DOI：10.14257/ijsip.2015.8.7.32
出版社：SERSC
摘要：Nowadays, the increasing requirement for telemedicine services has raised more concerns in real-time medical image encryption. However, traditional block ciphers have been found poorly fit this requirement. Considering this, we propose an efficient cryptosystem for medical image encryption in the present study. Chaos-based permutation-diffusion architecture is adopted, whereas an improved image confusion strategy is developed based on the intrinsic feature of medical images. The improved confusion approach can bring about not only satisfactory permutation performance but also bit distribution balancing effect for medical images. Simulations and extensive security analyses indicate that the proposed cryptosystem provides an efficient approach for real-time secure medical image transmission and storage over public networks
关键词：medical image encryption; chaos; improved confusion; standard map
