Novel lightweight video encryption method based on ChaCha20 stream cipher and hybrid chaotic map

Abstract

<span lang="EN-US">In the recent years, an increasing demand for securing visual resource-constrained devices become a challenging problem due to the characteristics of these devices. Visual resource-constrained devices are suffered from limited storage space and lower power for computation such as wireless sensors, internet protocol (IP) camera and smart cards. Consequently, to support and preserve the video privacy in video surveillance system, lightweight security methods are required instead of the existing traditional encryption methods. In this paper, a new light weight stream cipher method is presented and investigated for video encryption based on hybrid chaotic map and ChaCha20 algorithm. Two chaotic maps are employed for keys generation process in order to achieve permutation and encryption tasks, respectively. The frames sequences are encrypted-decrypted based on symmetric scheme with assist of ChaCha20 algorithm. The proposed lightweight stream cipher method has been tested on several video samples to confirm suitability and validation in term of encryption–decryption procedures. The performance evaluation metrics include visual test, histogram analysis, information entropy, correlation analysis and differential analysis. From the experimental results, the proposed lightweight encryption method exhibited a higher security with lower computation time compared with state-of-the-art encryption methods.</span>

Signal multiple encodings by using autoencoder deep learning

“…The method succeeded by transferring data in a secure manner and short time [16]. In the same year, Maolood et al [17] suggested a lightweight stream cipher method. Then, it was tested for numerous video samples to check its suitability and authentication in encryption and decryption procedures.…”

“…Then, it was tested for numerous video samples to check its suitability and authentication in encryption and decryption procedures. After testing many characteristics such as differential analysis, correlation analysis, information entropy and histogram analysis, their method showed a higher security and lower calculation time compared with state-of-the-art encoding methods [17]. From the literature, it can be noticed that the strength of encryption and the time of encryption and decryption are very important factors in cryptography.…”

Even symmetric chaotic and skewed maps as a technique in video encryption

“…Maolood et al [23] suggested a lightweight stream cipher method. Then, it was tested for numerous video samples to check its suitability and authentication in encryption and decryption procedures.…”

“…Then, it was tested for numerous video samples to check its suitability and authentication in encryption and decryption procedures. After testing many characteristics such as El-den et al EURASIP Journal on Advances in Signal Processing (2023) 2023:40 differential analysis, correlation analysis, information entropy and histogram analysis, their method showed a higher security and lower calculation time compared with state-of-the-art encoding methods [23].…”