Paper
25 October 2004 Lightweight MPEG4 video encryption algorithm suitable for network transmission
Shiguo Lian, Yingjun Cao, Jinsheng Sun, Zhiquan Wang
Author Affiliations +
Proceedings Volume 5600, Multimedia Systems and Applications VII; (2004) https://doi.org/10.1117/12.570742
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States
Abstract
In this paper, a video encryption algorithm based on MPEG4 codec is proposed, which combines encryption process with MPEG4 compression process. This algorithm is composed of two parts: VOP (Video Object Plane) encryption and VOL (Video Object Layer) encryption. In VOP encryption, the intra-encoded VOP is encrypted by inter-block permutation, the intra-encoded code blocks are encrypted by bit-plane permutation and coefficient sign encryption, and the other code blocks are encrypted by motion vector encryption. In VOL encryption, the basic VOLs are encrypted while others left unchanged. It can obtain high speed, for only parts of VOLs are encrypted. And it supports direct bit-rate control, which means that the encrypted images can also be decrypted correctly after recompression or bit-rate conversion. What's more, it is more robust to transmission errors than traditional ciphers since the errors causing in the encrypted bit-stream cannot spread out. These properties make it suitable for secure multimedia transmission over network, such as Video-on-Demand systems, multimedia communication networks, mobile multimedia or wireless multimedia networks, and so on.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shiguo Lian, Yingjun Cao, Jinsheng Sun, and Zhiquan Wang "Lightweight MPEG4 video encryption algorithm suitable for network transmission", Proc. SPIE 5600, Multimedia Systems and Applications VII, (25 October 2004); https://doi.org/10.1117/12.570742
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CITATIONS
Cited by 1 scholarly publication.
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KEYWORDS
Video

Computer programming

Video compression

Multimedia

Computer security

Multimedia encryption

Video coding

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