NDLI: A proposal of digital rights management based on incomplete cryptography using invariant Huffman code length feature

Content Provider	Springer Nature Link
Author	Thanh, Ta Minh Iwakiri, Munetoshi
Copyright Year	2013
Abstract	Digital rights management (DRM) system is a promising technique to allow copyrighted content to be commercialized in digital format without the risk of revenue loss due to piracy. However, traditional DRMs are achieved with individual function modules of cryptography and watermarking. Therefore, all digital contents are temporarily disclosed in perfect condition via decryption process in the user-side risking illegal redistribution. This paper describes the basic idea of a novel DRM method composed of an incomplete cryptography using invariant Huffman code length feature and the user identification mechanism to control the quality of digital contents. The proposed incomplete cryptography consists of two processes: the incomplete encoding and the incomplete decoding. These processes are presented by randomly selecting the coefficients that belong to the same category or different category of Huffman code. In our scheme, the copyright information is embedded into the decoded content during the decoding process, and the size of digital contents are invariant during the process. Experimental results with simulation confirmed that the modified codes are compatible with standard JPEG format, and revealed the proposed method to be suitable for DRM in the network distribution system.
Starting Page	127
Ending Page	142
Page Count	16
File Format	PDF
ISSN	09424962
Journal	Multimedia Systems
Volume Number	20
Issue Number	2
e-ISSN	14321882
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-06-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Digital rights management (DRM) Huffman code JPEG algorithm Digital images Copyright protection Incomplete cryptography Invisible watermarking Invariant Huffman code length feature Multimedia Information Systems Computer Communication Networks Operating Systems Data Storage Representation Data Encryption Computer Graphics
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Information Systems Media Technology Hardware and Architecture Software

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