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QR code based randomized hybrid video encryption

Today multimedia technologies have popularized applications like video conferencing, pay-per-view, Video On Demand (VOD), video broadcast, etc. where confidentiality and fast transmission of the video data extremely important. This necessitates secure video encryption algorithms. This paper presents a highly secured randomized encryption/ decryption technique. Implementation presented in this paper chooses a randomly switching model which combines the two symmetric cryptosystems Data Encryption Standard (DES) and Advanced Encryption Standard (AES) to work together as a single unit. Switching is controlled by the QR-code images. Along with encryption the video data undergoes the compression. Also this design takes care about the memory reduction using modified double stegging.