Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 3, 2025

In the age of digital communication, safeguarding security and integrity transmitted images is crucial, especially for online real-time applications where data privacy paramount. This paper addresses problem protecting sensitive medical during transmission by proposing a robust, lightweight encryption scheme. The proposed method uses keys derived from Lorentz attractor diffusion 16-bit Linear Feedback Shift Register (LFSR) pseudo-random confusion. Additionally, Cipher Block Chaining (CBC) process enhances output to ensure stronger security. A 512-bit hashing scheme using Whirlpool algorithm implemented maintain integrity, providing robust hash comparison mechanism. obtained values achieve Hamming distance 46.5–53.3% against ideal value 50%, demonstrating its high sensitivity. Furthermore, custom-tailored symmetric key secures before sender alongside encrypted images. At receiver end, decrypted compared with extracted received cipher image verify enabling secure decryption. DICOM an average entropy 7.99752, PSNR 5.872 dB, NPCR 99.66128%, UACI 33.55964%, while noise attack analysis further demonstrates robustness. entire was tested on Xilinx PYNQ-Z1 System Chip (SoC) boards, user interaction facilitated through custom-designed Graphical User Interface (GUI). experimental results confirm scheme's effectiveness in securing maintaining resilience attacks, making it suitable wireless applications.

Language: Английский