Digital Rights Management Applications Research Articles

A selective encryption for H.264/AVC videos based on scrambling

H.264/Advanced Video Coding (H.264/AVC) is one of the video compression standards that is 50% more efficient than previously introduced standards. Given that the H.264/AVC standard is considered and used in a variety of video applications, it is essential to provide a suitable solution for video encryption with good security, high encryption speed, and to prevent bitrate increases. In this paper, we propose a method selective encryption of H.264/AVC for the digital rights management (DRM) applications. In this method, discrete cosine transform (DCT) coefficients, which affect the texture and content of the H.264/AVC video during compression, are encrypted after the zigzag scanning and based on Context-Adaptive Binary Arithmetic Coding (CABAC). The experimental results and encryption efficiency analysis demonstrate that the proposed method with the format compliance has good security and high encryption speed and it can prevent the bitrate from rising and is thus usable in industrial and the DRM applications.

White-box Implementation to Advantage DRM

Digital Rights Management (DRM) is a popular approach for secure content distribution. Typically, DRM encrypts the content before delivers it. Most DRM applications use secure algorithms to protect content. However, executing these algorithms in an insecure environment may allow adversaries to compromise system and obtain the key. To withstand such attack, algorithm implementation is modified in such a way to make the implementation unintelligible, namely obfuscation approach. White-box cryptography (WBC) is an obfuscation technique intended to protect secret keys from being disclosed in a software implementation using a fully transparent methodology. This mechanism is appropriate for DRM applications and able to enhance security for content provider. However, DRM is required to provide a balanced protection for content provider and users. We construct a protocol on implementing WBC to improve DRM system; The system does not only provide security for content provider, but also preserves privacy for users.

White-box Implementation to Advantage DRM

<p class='IJASEITAbtract'>Digital Rights Management (DRM) is a popular approach for secure content distribution. Typically, DRM encrypts the content before delivers it. Most DRM applications use secure algorithms to protect content. However, executing these algorithms in an insecure environment may allow adversaries to compromise system and obtain the key. To withstand such attack, algorithm implementation is modified in such a way to make the implementation unintelligible, namely obfuscation approach. White-box cryptography (WBC) is an obfuscation technique intended to protect secret keys from being disclosed in a software implementation using a fully transparent methodology. This mechanism is appropriate for DRM applications and able to enhance security for content provider. However, DRM is required to provide a balanced protection for content provider and users. We construct a protocol on implementing WBC to improve DRM system; The system does not only provide security for content provider, but also preserves privacy for users.

Digital rights management: Model, technology and application

with rapid achievement of current information technology and computing ability and applications, much more digital content such as films, cartoons, design drawings, office documents and software source codes are produced in daily work, however to protect the content being copying, shared or deliberately stolen by inside or outside, digital rights management (DRM) became more and more important for digital content protection. In this paper, we studied various DRM model, technology and application, and first proposed DRM Security Infrastructure (DSI), in which we defined encryption, hash, signature algorithm, watermarking algorithms, authentication, usage control, trusted counter, conditional trace, secure payment, and based on the DSI we then proposed a whole classification approach and architecture of all kinds of DRMs, in which we proposed 6 typical classes of copyrights and content protection DRMs architecture: (1) Software-oriented DRM,(2) eBook-oriented DRM, (3) Video-oriented DRM, (4)Image-Oriented DRM (5) Unstructured data oriented DRM, (6) Text-oriented DRM. Based on the above DSI, we then proposed a dynamic DRM model selection method for various DRM application, which can be adapted dynamically for different technology of different applications, which can provide a whole solution for variant DRM development in a rapid and customized mode. The proposed DRM method, technology and application in this paper provided a common, flexible and extendable solution for variant DRM scenes, and can support rapid and customized development. Moreover, we proposed an opinion that the future life will enter into a new era that the content usage and consumption will not again adopt DRM technology rather than with law, liberty and morality.

Digital Rights Management System in China

In the era of technology, the Chinese government wants to adopt the latest technologies and interlink their processes to secure information of all stakeholders. Digital rights management (DRM) is one form of computerized system of copyright to protect access and stop infringement of digital contents for commercial purposes. For this article, the authors used a secondary literature review approach to first explore the development of intellectual property rights (IPR) in China and then they moved further to highlight the challenges and opportunities of DRM application and its use. The article concludes that China, as an emerging knowledge based economy, is trying to become a part of international laws and treaties. For this they should abide with international laws, treaties and also amend and enforce their own local laws, acts, rules and regulations based on IPR by adopting the latest technology such as DRM. Finally, the authors provided recommendations to offset the challenges together with existing opportunities.

Image Steganography using Polynomial key and Covert Communications in Open Systems Environment

Steganography, the art of hiding secrete messages inside other messages, innocuous wrapper, as until recently had been the poor cousin of cryptography, to communicate privately in an open channel. This area of study got widespread popularity after its alleged use by many extremist groups while hatching and executing their plans remotely. Because of this, in the recent past, many law enforcement and government agencies have also shown keen interest in it. There are many other reasons like Digital Rights Management applications (Watermarking and Finger Printing), which acted as catalyst too. This paper proposes a new steganographic encoding scheme which separates the colour channels of the windows bitmap images and then hides messages Randomly using polynomials in the LSB of one colour component of a chosen pixel where the colour components of the other two are found to be equal to the key selected.

Usage Control Model for Digital Rights Management in Digital Home Networks

The free distribution, unauthorized usage, and illicit sharing of copyrighted digital contents have become a common phenomenon with the rapid triple-play progress. The digital home network (DHN) is confronted with the open issue of digital rights management, and there is a lack of a formalized usage control model as well as some killer applications. The paper proposes a role-based cross-domain usage control model called the RCDUCM for DHN, which embraces two primary features of both role-based access control and security domain constraint management. RCDUCM is visually modeled by Unified Modeling Language to shorten the gap between the theoretical model and digital rights management applications. An application case denotes that the proposed model can implement consumer-contents-device license binding and transferring, the result of which is copyright protection of purchased digital contents against malicious piracy.

Utility-Analytic Approach and Swarm Simulations of Security Policies in Digital Rights Management

DRM (Digital Rights Management) Ecosystem to date lacks of a multi-participant trust for stakeholders, which are involved in Contents Provider, Rights Provider and End User, as has significantly negative impacts on DRM-enabled contents value chain's survivable. In order to establish the trust, a utility-analytic and non-cooperative game approach to the optimal adoption of cost-effective security policies was employed. A series of Swarm-based simulation experiments were highlighted, both considering a generic DRM application scenario on the contents acquisition, and discussing different sharing modes' influences on the adoption strategies of typical security policies for a much more complicated scenario on the contents sharing. The simulation results manifest that the enhanced security policies combination are not necessarily rational under any circumstance for the former scenario, and the optimal combination and its precondition are represented. Besides, the best modest sharing mode would spur consumer and contents provider to earn the maximum benefits, as is based on the given optimal security policies profile.

Secure and robust error correction for physical unclonable functions

Physical unclonable functions (PUFs) offer a promising mechanism that can be used in many security, protection, and digital rights management applications. One key issue is the stability of PUF responses that is often addressed by error correction codes. The authors propose a new syndrome coding scheme that limits the amount of leaked information by the PUF error-correcting codes.

Video fingerprinting and encryption principles for digital rights management

This paper provides a tutorial and survey of digital fingerprinting and video scrambling algorithms based on partial encryption. Necessary design tradeoffs for algorithm development are highlighted for multicast communication environments. We also propose a novel architecture for joint fingerprinting and decryption that holds promise for a better compromise between practicality and security for emerging digital rights management applications.