Privacy Security System for Video Data Transmission in Edge-Fog-cloud Environment
International journal of intelligent engineering and systems · 2023
Fog computing is an efficient paradigm to diminish latency and congestion of networks, in which the applications and data are no longer deployed in the cloud alone.Alternatively, the cloud server is improved with devices working near the edge layer and end users such as mobile applications and sensors respectively in internet of things (IoT) scenarios.Video surveillance system is a critical issue needs considerable computing and network instruments to provide the substantial quality of data.Multimedia communication includes videos transferring between fog and cloud server via secure channel is considered a critical problem needs to resolve.This paper proposes a light-weight cryptographic scheme to provide the secrecy and privacy for the transferred video data within edge-fog-cloud platform.Specifically, the framework of the proposed cryptographic scheme involves three main phases; secret key (SK) generation algorithm and distribution processes, pre-processing of video frames based on frame region of interest extraction FROI approach, and video data encryption/decryption phase using 2D chaotic map.The major parameters that effect on video encryption performance within edge-fog-cloud infrastructure are latency, accuracy and practicability.The secret key generation process is implemented into central fog node (CFN), while keys distribution and management processes are implemented into cloud computing layer for higher security distribution procedure.Common evaluation benchmarks were utilized in the experimental results to analyse and evaluate the proposed cryptographic scheme.The performance evaluation of the proposed cryptographic scheme is carried out based on some of metrics which are memory consumption rate, encryption time, rate decryption time, key sensitive analysis and computation complexity via using urban surveillance video dataset (USVD).The results of these metrics prove that the proposed scheme has been very suitable for securing transmit video data for edge-fogcloud structure against intruders.Scientific comparisons against stat of art methods are conducted in our experiments to highlight the performance evaluation of the proposed scheme.Finally, the finding results based on scientific comparisons show that the proposed scheme is more appropriate for transfer encryption video frames from fog-layer to cloud-computing layer.