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An efficient and secure medical image protection scheme based on chaotic maps

机译:基于混沌映射的高效安全的医学图像保护方案

摘要

Recently, the increasing demand for telemedicine services has raised interest in the use of medical image protection technology. Conventional block ciphers are poorly suited to image protection due to the size of image data and increasing demand for real-time teleradiology and other online telehealth applications. To meet this challenge, this paper presents a novel chaos-based medical image encryption scheme. To address the efficiency problem encountered by many existing permutation-substitution type image ciphers, the proposed scheme introduces a substitution mechanism in the permutation process through a bit-level shuffling algorithm. As the pixel value mixing effect is contributed by both the improved permutation process and the original substitution process, the same level of security can be achieved in a fewer number of overall rounds. The results indicate that the proposed approach provides an efficient method for real-time secure medical image transmission over public networks.
机译:最近,对远程医疗服务的需求不断增长,引起了人们对使用医学图像保护技术的兴趣。由于图像数据的大小以及对实时远程放射学和其他在线远程医疗应用的需求不断增加,传统的分组密码不适用于图像保护。为了应对这一挑战,本文提出了一种新颖的基于混沌的医学图像加密方案。为了解决许多现有置换-置换类型图像密码所遇到的效率问题,该方案通过比特级改组算法在置换过程中引入了一种替换机制。由于像素值混合效果是由改进的置换过程和原始替换过程共同贡献的,因此可以在更少的总体回合中实现相同级别的安全性。结果表明,所提出的方法为通过公共网络实时安全地传输医学图像提供了一种有效的方法。

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