山东大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 40-44.doi: 10.6040/j.issn.1672-3961.0.2014.353
王兰忠1, 孟文杰2
WANG Lanzhong1, MENG Wenjie2
摘要： 针对传统加密算法在基于Android操作系统的远程教育视频存在着运行不流畅、视频播放出现漏码等问题,在综合归纳传统视频加密方案的优缺点以及H.264视频数据特点的基础上,提出了一种根据不同数据元素类型进行不同加密强度控制的感知加密算法。修改Android系统的内核,增加视频数据流处理库,导入远程教育接收装置,搭建了远程教育视频的试验平台。在试验平台上对视频信号的播放、解密以及Android系统的运行进行了测试,论证了该方法的有效性、流畅性和稳定性。
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| [1] MEYER J, GADEGAST F. Security mechanisms for multimedia-data with the example MPEG1-video[D].Berlin:Technology University of Berlin, 1995. [2] WEN J T, SEVERA M, ZENG W J, et al. A format-compliant configurable encryption framework for access control of video[J]. IEEE Transaction on Circuits and Systems for Video Technology, 2002, 12(6):545-557. [3] SHI C G, WANG S Y, BHARGAVA B. MPEG video encryption in real-time using secret key cryptography[C]//Proceedings of the International Conference of Parallel and Distributed-Processing Techniques and Application (PDPTA99).Las Vegas,Nevada:Education and Application Press, 1999:2822-2828. [4] BLOM R, CARRARA E, MC GREW D, et al. The secure real time transport protocol (SRTP)[EB/OL].[2001-03-04]. http://www.itu.int/rec/T-REC-H.235.7/en/ [5] SCHNEIER B. Applied Cryptography: protocols, algorithms, and source code in C[M].北京:机械工业出版社, 2000. [6] WALLACE G,REGORY K. The JPEG still image compression standard[J].Communication of the ACM, 1991, 34(4):30-44. [7] CHENG H, LI X B. Partial encryption of compressed images and videos[J]. IEEE Transactions on Signal Processing, 2000, 48(4):2439. [8] TOSUN A S, FENG W C. Efficient multi-layer coding and encryption of MPEG Video Streams[C]//Proceedings of IEEE International Conference on Multimedia and Expo. New York, America:IEEE, 2000:119-122. [9] ITU-T for ITU Telecommunication Standardization Sector. ITU-T Rec H 263, Video Coding for Narrow Telecommunication Channels at<64kbit/s[S].[S.l.]:[s.n.], 1995:2-8. [10] Moving Picture Experts Group. ISO 11172: ISO/MPEG 90/176, Coding of Moving Pictures and Associated Audio[S].[S.l.]:[s.n.], 1992:1-20. [11] WU C P, KUO C C J.Efficient multimedia encryption via entropy codec design[C]//Proceedings of SPIE International Symposium on Electronic Imaging. San Jose, CA, USA: SPIE:128-138. [12] WU C P, KUO C C J. Fast encryption methods for audiovisual data confidentiality[C]//Proceedings of SPIE International Symposia on Information Technologies. Boston, USA: SPIE, 2000:284-295. [13] BAHR K, HINSCH E, SCHULZE G. Incorporating security functions in multimedia conferencing applications in the context of the MICE project[C]//Proceedings of 2nd International Workshop of IWACA. Heidelberg, Germany: IWACA, 1994:28-36. [14] ZENG W, LEI S. Efficient frequency domain selective scrambling of digital video[J]. IEEE Trans Multimedia, 2003(5):118-129. |
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