A Scalable Video Encryption Algorithm for H.264/SVC

Abstract

Abstract-As the extension of H.264/AVC standard, Scalable Video Coding (SVC) has achieved significant improvements in coding efficiency and scalability. Most of the available video encryption algorithms are designed based on H.264/AVC standard. In this paper, the extensional technologies in SVC relative to H.264/AVC are analyzed. According to the new characteristics, a scalable video encryption algorithm is proposed for H.264/SVC. Some new features, such as motion prediction information of spatial scalability and key picture information of MGS (medium-grain quality scalability), are encrypted with three domains in hierarchical layers using different keys. Performance analysis of the new algorithm is reported and its strength against cryptanalysis attacks is discussed. Experimental results indicate that our scheme has adequate performance to allow for its use in real world applications.

Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices

“…In an I-frame, intra-coding is permitted and all previously decoded reference pictures will not be used in the further decoding process. Many video compression methods have used lossy techniques to remove spatial and temporal redundancy [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ], and typically consist of the intra- and inter-mode. In these modes, a current macroblock refers to the previous macroblock and pixels.…”

“…In transmitting video data over Video Sensor Networks (VSNs), the video data can be sent to and from portable devices such as smartphones [ 1 , 2 , 3 , 4 , 5 ]. Frequently, multimedia data delivery raises issues around content ownership and privacy; therefore, protecting content is important in multimedia applications [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. Since the size of multimedia data is large, efficient encryption methods for protecting content, while also satisfying real-time requirements, are necessary [ 3 , 4 , 5 ].…”