A DCT-based MPEG-2 transparent scrambling algorithm

Ci Wang; Hong Bin Yu; Meng Zheng

doi:10.1109/TCE.2003.1261218

A DCT-based MPEG-2 transparent scrambling algorithm

Ci Wang, Hong Bin Yu, Meng Zheng

Shanghai Jiao Tong University

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

Recently, several encryption algorithms have been proposed, which are applied to MPEG-2 video streams. These algorithms try to optimize the encryption process and improve encryption speed by exploiting the spatial and temporal properties of video retrieval and display process. As a new branch of encryption, transparent scrambling has its own merits and special prospects. A new transparent scrambling algorithm proposed in this paper performs an arbitrarily degraded view of decoded picture by encrypting in DCT domain. This technique is applicable to the broadcast systems such as DVB/ATSC, which use MPEG-2 as compression standard.

Original language	English
Pages (from-to)	1208-1213
Number of pages	6
Journal	IEEE Transactions on Consumer Electronics
Volume	49
Issue number	4
DOIs	https://doi.org/10.1109/TCE.2003.1261218
State	Published - Nov 2003
Externally published	Yes

Keywords

DCT domain
MPEG-2 video
Transparent scrambling

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10.1109/TCE.2003.1261218

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KW - MPEG-2 video

KW - Transparent scrambling

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A DCT-based MPEG-2 transparent scrambling algorithm

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Keywords

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