Improved Perceptual Video Encryption Technique using Residue Number System

Abstract

In this paper, we propose an enhanced perceptual video encryption technique to speed-up and secure cipher video transmitted across networks using Residue Number System (RNS). The technique proposes a new reverse converter with smaller dynamic range using the moduli set {2n-1, 2n, 2n+1} that is integrated into our previous work of [2]. After encryption, cipher video is encoded into three residual videos that have smaller pixel values and ideal for transmission across networks. Instead of transmitting the three (3) residual videos, the technique effectively transmits and decodes only two (2) of them back into the original video with same visual quality. Experimental results show that the technique enhances transmission speed and security of cipher video across networks.

Residue Number System-Based Approach to Minimise Energy Consumption in Wireless Sensor Networks

“…Perceptual video encryption technique is presented in [8]. A cipher video is encrypted using the moduli set {2 n − 1, 2 n , 2 n+1 }.…”

“…However, large bit representations of messages transmit slower compared to those of smaller bits [8]. The residue number system is one of the available number representations for designing systems with highspeed computations and low power consumption.…”