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With the rapid development and popularization of the Internet, the dependency of human life on the Internet is increasing by degrees. The demand for video transmission is also rising with the emergence of portable and handheld devices such as mobile phones, tablets, laptops, etc. The scalability of Scalable Video Coding (SVC) determines that it can meet the needs of the newly emerged devices or terminals. Despite this advancement, security is still one of the major challenges. Based on the research of network security, this paper deeply discusses the encryption technology, and puts forward a new point multiplication algorithm using SVC and sliding window, which makes the algorithm more flexible, improves the efficiency of the algorithm to a certain extent, greatly reduces the expected calculation and storage of the algorithm, and makes the algorithm to adapt the memory limited environment such as smart card. Critical analysis of the proposed DES algorithm is carried out and different fragile keys are recommended which is not safe for secure encryption. This study also present the complete overview of the SVC technology and its multi-layered stream representation in the form of temporal, spatial, and SNR resolution. In addition, an encryption method based on the DES algorithm is also proposed. [ABSTRACT FROM AUTHOR]

This paper proposes an algorithm called NiCS to not only detect GNSS signal spoofing but also counter it. The Guest Editors would like to present the sixth paper of the special issue, "Mitigating Spoofed GNSS Trajectories through Nature Inspired Algorithm", authored by Saravjeet Singh, Jaiteg Singh, and Sukhjit Singh. Unlike many other existing algorithms that rely on dedicated hardware, NiCS uses inertial sensors, which are widely available in mobile phones nowadays, making the algorithm easy to deploy. [Extracted from the article]