This research aims to devise a method of encrypting medical images based on chaos map, Knight's travel map, affine transformation, and DNA cryptography to prevent attackers from accessing the data. The proposed DMIES cryptographic system performs the chaos intertwining logistic map diffusion and confusion process on chosen pixels of medical images. The DNA structure of the medical image has generated using all eight DNA encoding rules that are dependent on the pixel positions in the medical image. Knight's travel map is decomposed, which helps to prevent tampering and certification after the diffusion process. Finally, to avoid the deformity of medical data, a shear-based affine transformation is used. Compared to existing standard image encryption systems, the extensive and complete security assessment highlights the relevance and benefits of the proposed DMIES cryptosystem. The proposed DMIES can also withstand various attacks like statistical, differential, exhaustive, cropping, and noise attack.
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机译：本研究旨在设计一种基于混沌图、奈特旅行图、仿射变换和DNA密码学的医学图像加密方法，以防止攻击者访问数据。所提出的DMIES密码系统对医学图像的选定像素进行混沌交织的逻辑图扩散和混淆过程。医学图像的 DNA 结构是使用所有 8 个 DNA 编码规则生成的，这些规则取决于医学图像中的像素位置。骑士的旅行地图是分解的，这有助于防止扩散过程后的篡改和认证。最后，为了避免医学数据的畸形，采用了基于剪切的仿射变换。与现有的标准图像加密系统相比，广泛而完整的安全评估突出了所提出的DMIES密码系统的相关性和优势。所提出的DMIES还可以承受各种攻击，如统计攻击、差分攻击、穷举攻击、裁剪攻击和噪声攻击。
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