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<p>The security and privacy of confidential information, especially in healthcare domains like patient personal data, medical reports, images of the affected body part, etc., are highly desirable. To address the security issues in such domains, we propose a quantum-inspired image encryption scheme, designed for the secure medical data transmission in e-healthcare environments. It integrates a 3-D hyperchaotic map with the novel enhanced quantum representation (NEQR) to achieve high sensitivity and confusion. The grayscale medical image is decomposed into the most significant bit (MSB) and the least significant bit (LSB) planes. The MSBs are encrypted using quantum the gray code scrambling and simulated quantum gates (Hadamard, CNOT, and Rz), while the LSBs are secured using the 3-D hyperchaotic logistic-sine map. The SHA-256 hash function dynamically influences the key generation to increase the key sensitivity. The scheme is implemented using the IBM Qiskit simulator. The experimental results confirm strong cryptographic performance with the entropy values approaching 7.999, NPCR values above 99.6%, and the UACI values approximately 33.5%. Further, it shows the robustness against occlusion, noise, and statistical attacks, making it suitable for privacy-preserving medical image transmission.</p>

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3-D hyperchaotic quantum-inspired image encryption scheme for secure communication in e-healthcare

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • Sudhir Singh,
  • Apoorva Tripathi,
  • Khyati Sharma,
  • Upasana Singh,
  • Buddha Singh

摘要

The security and privacy of confidential information, especially in healthcare domains like patient personal data, medical reports, images of the affected body part, etc., are highly desirable. To address the security issues in such domains, we propose a quantum-inspired image encryption scheme, designed for the secure medical data transmission in e-healthcare environments. It integrates a 3-D hyperchaotic map with the novel enhanced quantum representation (NEQR) to achieve high sensitivity and confusion. The grayscale medical image is decomposed into the most significant bit (MSB) and the least significant bit (LSB) planes. The MSBs are encrypted using quantum the gray code scrambling and simulated quantum gates (Hadamard, CNOT, and Rz), while the LSBs are secured using the 3-D hyperchaotic logistic-sine map. The SHA-256 hash function dynamically influences the key generation to increase the key sensitivity. The scheme is implemented using the IBM Qiskit simulator. The experimental results confirm strong cryptographic performance with the entropy values approaching 7.999, NPCR values above 99.6%, and the UACI values approximately 33.5%. Further, it shows the robustness against occlusion, noise, and statistical attacks, making it suitable for privacy-preserving medical image transmission.