Visual Protection Using RC5 Selective Encryption in Telemedicine

Abstract

The dissemination of the COVID-19 viruses now extends the usage of video consultations to share perspectives and virtual medical consultations, save expenses and health procedures, track the success of care proposals with detail, consistency, and ease from moment to time. The research aims to study the security of video consultations. We will also present the advantages and disadvantages of video consultations and the complications of their implementation. This paper mainly proposes a practical, high-efficiency video encoding technique for the new video encoding technique (HEVC) used in video consultations. The technology offered uses the RC5 block encryption algorithm for encrypting the sensitive bits of HEVC with low complexity, short encoding times in real-time implementations, format-compliant HEVC, and constant bitrate. In addition, this paper presents experimental results comparing the proposed HEVC RC5-based selective encryption (SE) algorithm with the other algorithms used in various operating modes using the Advanced Encryption Standard (AES). Also, this paper provides the security analysis of the proposed HEVC RC5-based SE algorithm for video consultation, including; the correlation analysis between the ciphered video and the original one, the histogram of the ciphered video, and the cipher cycle analysis. The security analysis results ensured that the proposed HEVC RC5based SE algorithm for video consultation is safe and stable.

Opto-Video Encryption Based on Logistic Adjusted Sine map in FrFT

“…We first visually inspect the encoded and decoded video frames of the proposed opto-video LASM-based FrFT scheme. Then, we test the quality of the encoded video frames utilizing the entropy [24], the correlation coefficient [25], the histogram deviation (D I ) [26], the irregular deviation (D H ) [27], the number of pixel change rate (NPCR) and the unified average change intensity (UACI) [28]. We also compare histograms [29] of the source, the encrypted, and the decrypted video frames.…”

“…An accepted video encryption system should conceal this correlation. The correlation coefficient CC(P, C) among the video frame P(x i , y j ) and the encrypted video frame C(x,y j ) is expressed as [25]:…”

Multimedia Security Using Encryption: A Survey

“…As technology advances and video becomes more prevalent in entertainment, education, and surveillance industries, the necessity to protect this form of digital media's privacy and security is growing. Various encryption techniques are employed to protect video content from combating the risk of unauthorized access and breaches, resulting in growth in the branch of video encryption [10], [11], [12], [13], [14], [15], which aims to safeguard video files and ensure the confidentiality of information.…”