The Markov-modulated Poisson process (MMPP) cookbook
Performance Evaluation
The Essential Guide to Video Processing
The Essential Guide to Video Processing
Performance evaluation of video streaming over multi-hop wireless local area networks
IEEE Transactions on Wireless Communications
On Energy Efficient Encryption for Video Streaming in Wireless Sensor Networks
IEEE Transactions on Multimedia
Selective encryption for consumer applications
IEEE Communications Magazine
IEEE Journal on Selected Areas in Communications
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
Distortion-Resilient Routing for Video Flows in Wireless Multi-hop Networks
ICNP '12 Proceedings of the 2012 20th IEEE International Conference on Network Protocols (ICNP)
P3: toward privacy-preserving photo sharing
nsdi'13 Proceedings of the 10th USENIX conference on Networked Systems Design and Implementation
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Video transfers using smartphones are becoming increasingly popular. To prevent the interception of content from eavesdroppers, video flows must be encrypted. However, encryption results in a cost in terms of processing delays and energy consumed on the user's device. We argue that encrypting only certain parts of the flow can create sufficiently high distortion at an eavesdropper preserving content confidentiality as a result. By selective encryption, one can reduce delay and the battery consumption on the mobile device. We develop a mathematical framework that captures the impact of the encryption process on the delay experienced by a flow, and the distortion seen by an eavesdropper. This provides a quick and efficient way of determining the right parts of a video flow that must be encrypted to preserve confidentiality, while limiting performance penalties. In practice, it can aid a user in choosing the right level of encryption. We validate our model via extensive experiments with different encryption policies using Android smartphones. We observe that by selectively encrypting parts of a video flow one can preserve the confidentiality while reducing delay by as much as 75% and the energy consumption by as much as 92%.