A chaos-based medical image encryption method

Abstract

<span lang="EN-US">The information in the e-health system involves the patient’s privacy which is extremely sensitive. For instance, these information record social security numbers and detailed medical history. When the breach happens, there are illegal, or disclosure behaviors taken to privacy that should be compromised security. In this paper, the medical digital images are protected by the proposed chaos-based encryption method in the process of transmission and utilization. Then the authentication is granted to patients and telemedicine staffs by the decryption method proposed. The Qi 3-D four wing chaotic system is employed in this method. The proposed method promises the keys with higher complexity and unpredictability than traditional cryptography methods by introducing the chaotic dynamics in the new cryptography. Digital medical images are used to validate the proposed method under the brute and the differential attacks. The pixels of the image are scrambled completely based on cat map and the sub-blocks of the image are diffused in the way that the original image is changed into a chaotic image robust to all kinds of attacks. The experiments show that the proposed method has higher performance and higher computation for decryption.</span>

Asymmetric image encryption scheme based on Massey Omura scheme

“…Recently, many image encryption techniques have been proposed to verify interactive media data before transmission over insecure channels. We will list the most recent ones; in 2018 and 2020, [12] and [13] respectively have been are involved Hill [14] and Elliptic Curve cryptosystem [4], [15] in technique to encrypt and decrypt, they have been proved that it was more hard for the interloper attackers Wang and Tu [16] in 2020, involved concepts of chaotic system [17] to do encryption for medical image, they protected them in the process of transmission and utilization. Concepts of chaotic system was also involved in image encryption in 2020 [18], image encryption was applied with numbers were generated in LabVIEW software [19], Depending on the metrics used, the proposed method was acceptable.…”

Image encryption under spatial domain based on modify 2D LSCM chaotic map via dynamic substitution-permutation network

“…So, it modifies a 2D-LSCM that generates a sequence of random keys to improve a permutation and substitution for encryption a color image. The original 2D-LSCM is described in (1) as [28]:…”

“…These characteristics are deterministic, nonlinear and highly sensitive to any change in the initial value. So, it is suitable for image encryption [26][27][28][29]. However, the researchers still defect and try finding a novel method to encrypt the R, G, B components in mixing not independently by using appropriate confusion-diffusion architecture [25].…”

Public key cryptosystem based on multiple chaotic maps for image encryption

“…Therefore, several image encryption techniques have been designed over years. Some of these techniques include optical encryption [1] block-based encryption [2], [3] decomposition encryption [4], public key and distributive key encryption [5], [6] deoxyribonucleic acid (DNA) and genetic encryption [7], digital image encryption [8], [9] and others.…”