Modeling and implementation of digital rights

Hwang, Seong Oun; Yoon, Kisong; Jun, Kyung Pyo; Lee, Kwang Hyung

doi:10.1016/j.jss.2003.10.016

Cited by 34 publications

(30 citation statements)

References 8 publications

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“…Encryption is also an important tool in defending digital contents, e.g. in digital rights management (DRM) systems [1]- [4]. While encryption is used to look after the contents from unauthorized access, watermarking can be deployed to serve various other purposes.…”

Section: Introductionmentioning

confidence: 99%

Watermarking of JPEG2000 Compressed Images with Improved Encryption

Mathew¹

2013

IJCATR

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Abstract:The need for copyright protection, ownership verification, and other issues for digital data are getting more and more interest nowadays. Among the solutions for these issues, digital watermarking techniques are used. A range of watermarking methods has been projected. Compression plays a foremost role in the design of watermarking algorithms. For a digital watermarking method to be effective, it is vital that an embedded watermark should be robust against compression. JPEG2000 is a new standard for ima ge compression and transmission. JPEG2000 offers both lossy and lossless compression. The projected approach is used to execute a robust watermarking algorithm to watermark JPEG2000 compressed and encrypted images. For encryption it uses RC6 block cipher. The method embeds watermark in the compressed-encrypted domain and extraction is done in the decrypted domain. The proposal also preserves the confidentiality of substance as the embedding is done on encrypted data. On the whole 3 watermarking schemes are used: Spread Spectrum, Scalar Costa Scheme Quantization Index Modulation, and Rational Dither Modulation.

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Section: Introductionmentioning

confidence: 99%

Watermarking of JPEG2000 Compressed Images with Improved Encryption

Mathew¹

2013

IJCATR

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“…Hence, multiparty multilevel digital rights management architecture (MPML-DRM-A) has been used as an alternative to the traditional two party (buyer-seller) DRM architecture by many authors [12], [22]. The term multiparty refers to the multiple parties such as the owner, distributors, sub-distributors and consumers and the term multilevel refers to the multiple levels of distributors/subdistributors involved in the distribution chain of a content.…”

Section: Introductionmentioning

confidence: 99%

Joint Watermarking Scheme for Multiparty Multilevel DRM Architecture

Thomas

Emmanuel

Subramanyam

et al. 2009

IEEE Trans.Inform.Forensic Secur.

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Abstract-Multiparty multilevel digital rights management (DRM) architecture involving several levels of distributors in between an owner and a consumer has been suggested as an alternative business model to the traditional two-party (buyer-seller) DRM architecture for digital content delivery. In the two-party DRM architecture, cryptographic techniques are used for secure delivery of the content and watermarking techniques are used for protecting the rights of the seller and the buyer. The cryptographic protocols used in two-party case for secure content delivery can be directly applied to the multiparty multilevel case. However, the watermarking protocols used in two-party case may not directly carry over to the multiparty multilevel case as it need to address the simultaneous security concerns of multiple parties such as owner, multiple levels of distributors and consumers. Towards this, in this paper we propose a joint digital watermarking scheme using Chinese remainder theorem for the multiparty multilevel DRM architecture. In the proposed scheme, a watermark information is jointly created by all the parties involved and then a watermark signal is generated out of it and embedded into the content. This scheme takes care of the security concerns of all the parties involved. Further, in the event of finding an illegal copy of the content, the traitors can be traced back.

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“…So, as an alternative to the two party DRM architectures, multiparty multilevel DRM architecture (MPML-DRM-A) is proposed in [16] [8][10] [4]. The term 'multiparty' refers to the involvement of multiple parties such as owner, distributors, sub-distributors and consumers.…”

Section: Introductionmentioning

confidence: 99%

Efficient license validation in MPML DRM architecture

Sachan

Emmanuel

Kankanhalli

2009

Proceedings of the Nineth ACM Workshop on Digital Rights Management

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Multiparty multilevel DRM architecture (MPML-DRM-A) involves multiple parties such as owner, multiple levels of distributors and consumers. The owner issues redistribution licenses to its distributors, who in turn generate and issue variations of these redistribution licenses to their subdistributors. Also the distributors generate and issue usage licenses to the consumers to consume the contents. But, these variations of the redistribution licenses and usage licenses generated and issued by each distributor must be validated by a validation authority against the redistribution licenses that it has received. In MPML-DRM-A, there may exist multiple, different types of redistribution licenses for a content. Validation using multiple redistribution licenses may become difficult in real time. Further, storage of multiple redistribution licenses for validation presents a challenge of reducing storage space requirements. Hence, in this paper we propose a bit-vector transform based license organizing structure, and present a method to do the validation of issued licenses in the bit-vector transform domain efficiently. Experimental results show that our license organization structure helps to achieve low validation time and storage space complexity. Categories and Subject Descriptors General TermsAlgorithms, Security Keywords Digital Rights Management (DRM), License Organization, License ValidationPermission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. DRM'09, November 9, 2009, Chicago, Illinois, USA. Copyright 2009 ACM 978-1-60558-779-0/09/11 ...$10.00.

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Modeling and implementation of digital rights

Cited by 34 publications

References 8 publications

Watermarking of JPEG2000 Compressed Images with Improved Encryption

Watermarking of JPEG2000 Compressed Images with Improved Encryption

Joint Watermarking Scheme for Multiparty Multilevel DRM Architecture

Efficient license validation in MPML DRM architecture

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