Abstract
Recently, great concerns have been raised regarding the issue of medical image protection due to the increasing demand for telemedicine services, especially the teleradiology service. To meet this challenge, a novel chaos-based approach is suggested in this paper. To address the security and efficiency problems encountered by many existing permutation-diffusion type image ciphers, the new scheme utilizes a single 3D chaotic system, Chen's chaotic system, for both permutation and diffusion. In the permutation stage, we introduce a novel shuffling mechanism, which shuffles each pixel in the plain image by swapping it with another pixel chosen by two of the three state variables of Chen's chaotic system. The remaining variable is used for quantification of pseudorandom keystream for diffusion. Moreover, the selection of state variables is controlled by plain pixel, which enhances the security against known/chosen-plaintext attack. Thorough experimental tests are carried out and the results indicate that the proposed scheme provides an effective and efficient way for real-time secure medical image transmission over public networks.
Highlights
We suggest a novel chaos-based image cipher for medical image protection
We introduce a novel shuffling mechanism, which shuffles each pixel in the plain image by swapping it with another pixel at a location chosen by two of the three state variables of Chen’s chaotic system
The selection of state variables is controlled by the plain pixel
Summary
Telemedicine or telehealth, a product of 20th century telecommunication and information technologies, is emerging as a critical component of the healthcare crisis solution. Chaos-Based Medical Image Protection ensured that medical data are collected and communicated securely, accessed by authorized persons only. This is even crucial for telemedicine/telehealth services as they inevitably involve the transmission of medical, imaging and health informatics data over open networks such as the Internet. Conventional block ciphers, such as Triple-DES, AES and IDEA, are not suitable for practical medical image cipher due to the size of image data and increasing demand for real-time teleradiology and other online telehealth services. To meet this challenge, many different encryption technologies have been proposed. The architecture of the proposed scheme formed the basic structure for many of the chaos-based image encryption techniques that are presented later in the literature
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
