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Application of Residue Number Systems in Enhancing the Transmission of Secured Videos
(National Institute for Research and Development in Informatics – ICI Bucharest, 2021-12-01) Akinbowale Nathaniel BABATUNDE and Abdulkarim Ayopo OLOYEDE
Full video Encryption has been established as the most suitable technique to guarantee the security of digital video data during transmission but cannot be widely adopted because of its large disk space and long processing time. Therefore, this paper aims at reducing the computational space complexity using Residue Number System (RNS). MPEG IV algorithm and encryption of pixel values using the traditional RNS moduli set were employed for the encryption while a modified reverse converter was used for decryption. JAVA was used for the implementation while an evaluation was performed to compare the disk size of the cipher and deciphered videos. The scheme outperformed the existing evaluated cryptosystems in terms of cipher size and the decrypted videos increased by 49% when compared with the original video. The space computational complexity problem in full video encryption was adequately reduced using RNS. It is recommended that RNS should be used for securing video transmission and storage. Keywords: Forward converter, Reverse converter, Moduli set, Residual frame, Moving Pictures Experts Group IV (MPEG IV), Video encryption, Residue Number System (RNS)