Blockchain-based color medical image cryptosystem for industrial Internet of Healthcare Things (IoHT)

IF 3 4区 计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS
Fatma Khallaf, Walid El-Shafai, El-Sayed M. El-Rabaie, Fathi E. Abd El-Samie
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Abstract

In recent years, the proliferation of smart devices and associated technologies, such as the Internet of Things (IoT), Industrial Internet of Things (IIoT), and Internet of Medical Things (IoMT), has witnessed a substantial growth. However, the limited processing power and storage capacity of smart devices make them vulnerable to cyberattacks, rendering traditional security and cryptography techniques inadequate. To address these challenges, blockchain (BC) technology has emerged as a promising solution. This study introduces an efficient framework for the Internet of Healthcare Things (IoHT), presenting a novel cryptosystem for color medical images using BC technology in conjunction with the IoT, Secure Hash Algorithm 256-bit (SHA256), shuffling, and bitwise XOR operations. The encryption scheme is specifically designed for an IIoT grid network computing system, relying on diffusion and confusion principles. In this paper, the proposed cryptosystem strength is evaluated against differential attacks with several comprehensive metrics. Simulation results and theoretical analysis demonstrate the cryptosystem effectiveness, showcasing its ability to provide high levels of security and immunity to data leakage. The proposed cryptosystem offers a versatile range of technical solutions and strategies that are adaptable to various scenarios. The evaluation metrics, with approximate values of 99.61% for Number of Pixels Change Rate (NPCR), 33.46% for Unified Average Changed Intensity (UACI), and 8 for information entropy, closely align with the desired ideal outcomes. Consequently, this paper contributes to the advancement of secure and private systems for medical image encryption based on BC technology, potentially mitigating the risks associated with cyberattacks on smart medical devices.

Abstract Image

基于区块链的工业医疗保健物联网(IoHT)彩色医疗图像加密系统
近年来,智能设备和相关技术,如物联网 (IoT)、工业物联网 (IIoT) 和医疗物联网 (IoMT) 等,出现了大幅增长。然而,智能设备有限的处理能力和存储容量使其容易受到网络攻击,从而使传统的安全和加密技术变得不足。为应对这些挑战,区块链(BC)技术已成为一种前景广阔的解决方案。本研究为医疗保健物联网(IoHT)引入了一个高效的框架,利用区块链技术结合物联网、256 位安全散列算法(SHA256)、洗牌和比特 XOR 运算,为彩色医疗图像提供了一个新颖的加密系统。该加密方案是专为物联网网格网络计算系统设计的,依赖于扩散和混淆原理。本文通过多个综合指标评估了所提出的加密系统在应对差分攻击时的强度。仿真结果和理论分析证明了该密码系统的有效性,展示了其提供高水平安全性和抗数据泄漏能力的能力。所提出的密码系统提供了多种技术解决方案和策略,可适应各种情况。评估指标中,像素变化率(NPCR)的近似值为 99.61%,统一平均变化强度(UACI)的近似值为 33.46%,信息熵的近似值为 8,与预期的理想结果非常接近。因此,本文有助于推进基于 BC 技术的医疗图像加密安全保密系统,从而降低智能医疗设备受到网络攻击的潜在风险。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Multimedia Tools and Applications
Multimedia Tools and Applications 工程技术-工程:电子与电气
CiteScore
7.20
自引率
16.70%
发文量
2439
审稿时长
9.2 months
期刊介绍: Multimedia Tools and Applications publishes original research articles on multimedia development and system support tools as well as case studies of multimedia applications. It also features experimental and survey articles. The journal is intended for academics, practitioners, scientists and engineers who are involved in multimedia system research, design and applications. All papers are peer reviewed. Specific areas of interest include: - Multimedia Tools: - Multimedia Applications: - Prototype multimedia systems and platforms
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