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http://dx.doi.org/10.3745/KIPSTC.2005.12C.2.175

A Study on Encryption Techniques for Digital Rights Management of MPEG-4 Video Streams  

Kim Gunhee (세종대학교 컴퓨터공학과)
Shin Dongkyoo (세종대학교 컴퓨터공학과)
Shin Dongil (세종대학교 컴퓨터공학과)
Publication Information
The KIPS Transactions:PartC / v.12C, no.2, 2005 , pp. 175-182 More about this Journal
Abstract
This paper presents encryption techniques for digital right management solutions of MPEG-4 streams. MPEG-4 is a format for multimedia streaming and stored in the MPEG-4 file format. We designed three kinds of encryption methods, which encrypt macro blocks (MBs) or motion vectors (MVs) of I-, P-VOPs (Video Object Planes), extracted from the MPEG-4 file format. We used DES to encrypt MPEG-4 data Based on theses three methods, we designed and implemented a DRM solution for an Internet broadcasting service, which enabled a MPEG-4 data streaming, and then compared the results of decryption speed and quality of rendered video sequences to get an optimal encryption method.
Keywords
디지털 저작권 관리;암호화;주문형 비디오;
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