As multimedia information continues to explode on the internet and in everyday life, the forms in how people access information have come in more varied forms. Video content has become an essential part of daily life and in usage at work. Nevertheless, the mass utilization of video data has also brought a list of security risks and challenges, and the concern about video security issues is increasing. In the current paper, various algorithms have been incorporated in order to attain high degree of security. The proposed approach integrates a simplified three-dimensional (3D) Lorenz chaotic map using fuzzy triangular numbers in generating keys with 2DNA encoding to increase video encryption. First, the video is broken down to single frames. The given approach further involves three key steps. The first stage consists of a scrambling operation on the pixels of each frame which is determined by a position key. In the second step, the scrambled frames are encoded (scrambled) with 2DNA, based on many encoding rules in accordance with the concepts of DNA cryptography to generate coded frames. At the last stage, coded frames are encrypted by XOR operation with chaotic keys calculated based on modified 3D Lorenz chaotic map. Lastly, reconstructing of all encrypted frames is used to produce the completely encrypted video. The performance of the proposed scheme is confirmed by the results of the experiments, and the highest UACI and NPCR values were 33.6100% and 99.6130, respectively.
Keywords
Video EncryptionVideo ScramblingFuzzy Triangular Numbers3D Lorenz Chaotic Map2DNA Encoding.
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