A seed generation technique based on elliptic curvefor providing synchronization in secured immersive teleconferencing

Abstract

Immersive Teleconferencing as one of the new progresses in video-conferencing allows users to see multiple partners in the conference simultaneously or watch a single event from different views. H.264/MVC standard provides a well-defined structure for implementing immersive teleconferencing that can merge pictures taken by several cameras into a single video stream at the encoder side and also show the encoded video stream from different views at the decoder side. For confidential and top secret circumstances like governmental, military and medical cases keeping the contents of conversations hidden from adversaries is critical. Therefore for these applications video content encryption is necessary. The encryption scheme used for video-conferencing besides high perceptual security must have suitable synchronization performance between two parties due to used key stream especially in noisy transmission environments. The problem with existing techniques is that their seed generations have no synchronization mechanism or they add the encrypted seed or its hash value to the bitstream as synchronization control information. To overcome the issue this study recommends a seed generation technique based on points located on elliptic curve to provide synchronization between teleconferencing parties due to applied key stream. The work proved that points located on elliptic curve have proper randomness characteristics to offer the appropriate security property. The results show that the proposed technique performs better synchronization in secured environment than current seed generation techniques.