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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29526


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7288
Selective Encryption using ISMA Cryp in Real Time Video Streaming of H.264/AVC for DVB-H Application
Abstract:
Multimedia information availability has increased dramatically with the advent of video broadcasting on handheld devices. But with this availability comes problems of maintaining the security of information that is displayed in public. ISMA Encryption and Authentication (ISMACryp) is one of the chosen technologies for service protection in DVB-H (Digital Video Broadcasting- Handheld), the TV system for portable handheld devices. The ISMACryp is encoded with H.264/AVC (advanced video coding), while leaving all structural data as it is. Two modes of ISMACryp are available; the CTR mode (Counter type) and CBC mode (Cipher Block Chaining) mode. Both modes of ISMACryp are based on 128- bit AES algorithm. AES algorithms are more complex and require larger time for execution which is not suitable for real time application like live TV. The proposed system aims to gain a deep understanding of video data security on multimedia technologies and to provide security for real time video applications using selective encryption for H.264/AVC. Five level of security proposed in this paper based on the content of NAL unit in Baseline Constrain profile of H.264/AVC. The selective encryption in different levels provides encryption of intra-prediction mode, residue data, inter-prediction mode or motion vectors only. Experimental results shown in this paper described that fifth level which is ISMACryp provide higher level of security with more encryption time and the one level provide lower level of security by encrypting only motion vectors with lower execution time without compromise on compression and quality of visual content. This encryption scheme with compression process with low cost, and keeps the file format unchanged with some direct operations supported. Simulation was being carried out in Matlab.
Digital Object Identifier (DOI):

References:

[1] Stefan Doehla, Systems Engineer, Fraunhofer IIS , "DVB-H handheld video content protection with ISMA Encryption", pp 1-10, July 2007.
[2] ISMA Encryption and Authentication, Version 1.1; AREA / Task Force: DRM, September 2006.
[3] ISMA Encryption and Authentication Version 2.0; External Proposed Specification ; AREA / Task Force: DRM, November 2007
[4] "Draft ITU-T recommendation and final draft international standard of joint video specification (ITU-T Rec. H.264/ISO/IEC 14 496-10 AVC," in Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, JVTG050, 2003.
[5] ITU-T, "Advanced video coding for generic audiovisual services," ITUT Rec. H.264; v11: March. 2009.
[6] Atul Puri, Xuemin Chen, Ajay Luthra, "Video coding using the H.264/MPEG-4 AVC compression standard", Signal Processing: Image Communication Vol. 19, No. 99, pp. 793-849, 2004.
[7] Iain E. G. Richardson: "H.264 and MPEG-4 Video Compression: Video Coding for Next-generation Multimedia", ISBN: 978-0-470-51692-8, John Wiley and Sons, Dec, 2003.
[8] Wang Li-feng, Wang Wen-dong, MA Jian, XIAO Chen and WANG Kong-qiao, "Perceptual video encryption scheme for mobile application based on H.264", The Journal of China Universities of Posts and Telecommunications: Science Direct, 15(Suppl.): pp 73-78, September 2008.
[9] Jay M. Joshi, Kiran R. Parmar and Upena D. Dalal, "Design and Implementation of KASUMI Algorithm in ISMACryp Encryption for Video Content Protection in DVB-H Application", IEEE International Conference on Control, Robotics and Cybernetics (ICCRC 2011), vol 1, ISSN: 978-1-4244-9709-6, pp 18-21, March 2011.
[10] Z. Shahid, M. Chaumont and W. Puech, "Fast Protection of H.264/AVC by Selective Encryption", WSPC - Proceedings : Singaporean-French IPAL Symposium, SinFra 2009, Fusionopolis, September 2009.
[11] Yan Li and Main Cai, "H.264-Based Multiple Security Levels Net Video Encryption Scheme", IEEE International Conference on Electronic Computer Technology: IEEE Computer Society, pp 8-11, 2009.
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