Digital rights management in information publishing

In this article, we present a solution to digital rights management (DRM) for electronic publishing and document management services provided by a third-party application service provider (ASP). We identify legal requirements that service providers have to guarantee with respect to DRM. We elaborate on related technological requirements and implement specific DRM service components compliant with the Open Digital Rights Language (ODRL) standard. Moreover, we show how digital rights of document content can be specified and subsequently enforced using ODRL. We conclude by discussing legal implications of technological innovation—for example, the conflicts that may arise between digital rights enforcement and privacy protection measures, and how it is possible to resolve them.     

一个面向家庭网络的数字版权管理系统

随着消费电子产品的普及,家庭网络逐渐流行,但与此同时网络上数字内容的侵权问题也非常严重.提出了一种对家庭网络内数字内容进行版权保护的数字版权管理(DRM)系统.系统中,家庭网关设备负责管理家庭网络内的所有用户电子设备,并作为它们的代理与外部DRM服务器交互,以执行DRM功能.系统采用的组密钥技术可使得经过加密的数字内容只有合法用户设备才能解密并使用,而通过数字内容在用户设备之间的超级分发可实现家庭网络内的内容共享.     

Fragile watermarking with permutation code for content-leakage in digital rights management system

In this paper, we present a new scheme of digital rights management (DRM) system employing the fragile watermarking with permutation code for the image distribution via network. General DRM systems are designed to protect the copyright of contents and to trace the source of the illegal distributors based on the user-side watermarking. However, in the typical DRM systems, the original digital contents are temporarily disclosed without the watermarking information inside user’s system by the decryption process. Therefore, the user can copy the leaked original content inside the system and illegally redistribute via network without the permission of the content providers. Our work describes the idea of a DRM method which is composed of the incomplete cryptography based on permutation codes and user identification mechanism to control the quality of digital contents. There are two fundamental steps in our proposed cryptography: incomplete encoding and incomplete decoding. These two steps will create the scrambled content that is used as trial content and the watermarked content that is used to prevent unauthorized duplication or business of digital contents, respectively. Experimental results show that the proposed method is suitable for DRM in the network distribution system.     

基于密码技术的Android平台数字媒体版权管理系统

针对电子商务领域数字媒体版权保护的需求,给出一种数字媒体版权管理（DRM）系统框架。基于Android平台,对版权管理系统涉及的DRM内容格式及权利对象文件进行设计,给出系统的工作流程。最后,给出了系统的测试结果,并分析了系统的主要特点。     

知识产权许可与数字版权保护——以“DVD论坛”(“DVD Forum”)为中心考察

数字版权保护(Digital Rights Management,即DRM),就是通过采用网络与信息安全技术及软硬件相结合的方法,对数字媒体内容进行识别、描述、监控或者跟踪,以实现对数字媒体内容的保护。目前,数字媒体保护内容包括电子书、数字电影、数字音乐、图片、动漫、软件等。因此,数字版权保护(DRM)实施的目的是为了防止盗版、防止非法复制、隐私保护、使用权限控制,从而实现可靠的知识共享。由于数字媒体时代,网络交互技术和通信技术的发展,数字版权保护的实施主要目的就是保护媒体内容提供者的版权权利,这种版权权利的实现就是通过知识产权许可的实施来达到保护媒体内容提供商的权利和利益。在这种知识产权权利的实施过程中,数字媒体内容提供商的利益得到最大化的保护,而在这个利益实现过程中的各个角色的利益保护和分配更是技术发展和利益平衡的博弈过程本文以"DVD论坛"("DVD Forum")中的数字版权保护逐步演变和发展为线索,具体分析这种技术发展和利益平衡博弈的过程,以中国的数字版权保护技术的发展来分析可能产生的后果,为中国数字版权保护技术和企业未来更好的发展提供借鉴。     

Death and resurrection of copyright between law and technology

The paper reviews copyright philosophical, economic and social justification confronted by the dematerialization of creative outputs. Digital Rights Management (DRM) is the tool implemented by copyright owners to adjust to the advent of the Digital Era. The claim is that DRM effectively addresses digital threats and market failures. If this is true, what is left of the role of copyright law in the digital environment? This review suggests an argument for traditional copyright justifications to resist in the digital environment. As a consequence, digital tools such as DRM need to be engineered according to these justifications, in order to preserve the balance between law and technology.     

面向数字版权管理的搜索引擎技术综述

怎样综合号虑互联网上有版权内容和无版权内容的综合查询，也即考虑如何在搜索引擎上增加权利管删的处理功能。这个问题体现在数字化图书馆、网络出版、远程教育以及企业内容服务等应用领域。该文主要介绍了3种解决方案：面向水印机制的搜索引擎，搜索引擎内嵌DRM机制以及自动生成版权内容索引的外加DRM搜索引擎机制。并对于这3种解决方案做一个比较。     

基于数字水印和加密技术的DRM系统模型设计

本文分析了传统的数字版权管理系统模型,针对其在发生版权纠纷时无法提供有效版权凭证缺陷,构建了一种利用加密技术和数字水印技术相结合的DRM（数字版权管理）系统模型。运用数字水印技术,在数字内容中嵌入版权水印和用户水印,为数字作品在发生版权纠纷时,提供版权认证和用户认证.     

基于USB-KEY的数字版权保护系统分析与实现

本文分析目前的DRM系统产生、现状以及基本模型,提出基于USB—KEY的数字版权保护的实现方式,采用实时监控的方式和独立硬件存储密钥的方式来对系统进行可信用户的操作保护,并对整个系统的安全性进行分析说明。     

数字版权保护技术研究综述

数字版权保护技术已成为数字网络环境下数字内容交易和传播的重要技术,用于保护数字内容的版权,控制数字内容的使用和传播．文章在阐述数字版权保护技术基本概念和系统体系结构的基础上,主要围绕权利描述、使用控制、合理使用、权利转移和可信执行等关键问题,分析其研究现状,论述已有技术在处理这些问题上的优势和不足,并探讨了未来的研究方向．     

Who should own access rights? A game-theoretical approach to striking the optimal balance in the debate over Digital Rights Management

The development of access rights as, perhaps, a replacement for copyright in digital rights management (DRM) systems, draws our attention to the importance of ‚the balance problem’ between information industries and the individual user. The nature of just what this ‚balance’ is, is often mentioned in copyright writings and judgments, but is rarely discussed. In this paper I focus upon elucidating the idea of balance in intellectual property and propose that the balance concept is not only the most feasible way to examine whether past solutions to copyright problems are fair, but it also provides the ability to predict what will be the better solution for all affected parties. Based upon an envy-free contribution towards predicting the efficient balance, game theory is applied in a novel manner to the DRM problem to infer where and what might be the optimal balance in the debate over the nature of access right.     

Production Protection to Copy(right) Protection: From the 10NES to DVDs

Much of what modern digital rights management (DRM) systems attempt to accomplish was actually forcefully implemented on videogame consoles beginning with the Nintendo Entertainment System (NES) and SEGA Genesis system in the early 1980s. Examining the links between modern DRM mechanisms and these early production and copy protection systems can help contextualize the future of media production and access.     

基于DRM技术数字文档保护系统集成的研究与应用设计

当用户通过合法或非法途径获取了企业信息系统中数字文档的访问权限,即可以不受限地通过下载、拷贝、网络等方式传播他人,而导致带有企业机密的泄密,使得共享与保密之间存在突出的问题,集成基于DRM技术构建的文档安全管理系统,对于已联网的企业存储信息的机密性和完整性是一个快速有效的解决方法。在本文中,对企业非结构化数字文档信息安全现状与存在问题进行了分析,研究了使用DRM对数字文档在线与离线应用信息防泄密进行保护的技术原理,提出了一种在企业现有信息系统体系下,通过二次开发集成基于DRM技术专业机密文档保护产品的嵌入式架构设计。     

基于区块链信用体系的分布式数字版权管理机制

为了提升数字版权管理机制的效率,为去中心化内容分发网络中的版权保护问题提供解决方案,提出一种基于区块链信用体系的分布式DRM（digital right management）机制。利用区块链增信体制及智能合约技术,该DRM机制设计了去中心化分布式网络环境中的版权交易过程,实现版权交易过程的不可逆加密记录,并针对内容分发应用的实际需求对分布式账本的数据结构作出轻量化调整。仿真测试和结果分析表明,基于该机制可为构建出高性能低开销的分布式内容分发系统提供技术支撑,并且相较于传统DRM机制,该机制具备高度的灵活性和可扩展性。     

基于透明加解密的DRM技术的分析与研究

随着信息化的深入和计算机技术的发展,人们对知识版权保护越来越重视,数字版权管理已成为迫切需要解决的重大问题.以透明加解密为基础,综合公私钥结合的密钥保护,对数字版权管理(DRM)技术进行深入的研究,实现高性能、高兼容性的版权保护,同时保护数据的完整性、安全性以及可控性,进一步推动数字版权管理的完善和发展.     

PDF文档使用控制方法研究

数字版权管理技术是近年发展起来的一种新的信息安全技术,通过数字版权管理和防复制可实现对数字内容的保护。数字版权管理的核心在于对数字资源的权利保护和使用控制。本文讨论现今版权保护系统中使用的关键技术在PDF版权保护中的应用,研究PDF文档架构及其安全机制,分析PDF文档使用控制机制、使用控制方法及实现工具。     

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

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.     

The rise of the digital technology 'Meritocracy': Legal rules and their impact

For many thousands of years, human beings have used various technologies to record thoughts and ideas. The technology used has, over time, become increasingly complex. Today, we use complex digital technologies such as computers. The increasing complexity of technology requires that individuals have increasingly high levels of skill in using such technology. However, many of the abilities of right holders to use digital technology are no longer related to the use of technology to create works. Increasingly, it is focusing around the ability of individuals to circumvent Digital Rights Management (DRM) mechanisms. Both digital technology and legal rules are the cause of this. A solution to the problem might be for legal rules to turn copyright from a 'negative right not to copy' into a 'positive right to copy'.     

Access denied [digital rights management]

Digital rights management (DRM), technology and law, threaten the entire system of discourse on which progress is built. It is based on a reductionist model, in which creativity and innovation are isolated actions supplied according to the economic returns promised to those who are successful. Yet science, innovation, and creativity are dynamic systems chat require open discourse and readily available information to flourish. The core flaw in DRM laws and technology is the model of author as sole creator, rather than as a part of a system. The article enumerates the dramatic threats to the system of creation and innovation that the author believes exist in DRM law and technology.