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July 11, 2017

W3C OKs extensions enabling web-based digital rights management for video

by John_A

Why it matters to you

Although this standard enables web browsers to support viewing copyrighted video, there’s concern providers will have too much control over playback.

Last week, the World Wide Web Consortium (W3C) decided to officially recommend the use of Encrypted Media Extensions (EME) for protecting copyrighted video on the internet. This will enable web surfers to watch media in a browser that requires Digital Rights Management copy protection without the need for browser-based plugins.

“It moves the responsibility for interaction from plugins to the browser,” the consortium states. “As such, EME offers a better user experience, bringing greater interoperability, privacy, security, and accessibility to viewing encrypted video on the web.”

The W3C is an international organization that enforces standards for the internet. It develops protocols and guidelines to bring balance to the World Wide Web, and to reach the full potential of the latest technologies. Its stated mission is to push for a safe, open platform that can be used on all hardware scattered across the globe.

The W3C first introduced EME in 2013 as a specification for linking a web browser to a web-based software module that handles Digital Rights Management. It doesn’t include a specific type of content control, but instead provides means for web developers to insert scripts into web pages that can select the appropriate content management mechanism. Scripts can also control license and key exchanges between the browser and the protected content’s host server.

“It supports a wide range of use cases without requiring client-side modifications in each user agent for each use case,” the W3C states. “This enables content providers to develop a single application solution for all devices.”

Digital Rights Management is a necessary component for all consumable media. For instance, it thwarts the process of recording copyrighted video and selling the content for profit. Software developers use DRM to authorize the installation of their products on PCs, such as Microsoft’s Genuine Windows initiative. But Digital Rights Management can be problematic, eating up unnecessary resources and causing software-related issues.

Adding to that, browser-based plugins have proven to be insecure. That’s the big push behind HTML5: to move content management, playback control, games, video conferencing, and more into the internet itself so that hackers don’t have a specific software-based target. It eliminates the need for Microsoft’s Silverlight and Adobe Flash, the latter of which has proven to be a highly attractive attack vector for hackers.

However, the W3C’s recommendation of the EME standard doesn’t come without criticism. The Electronic Frontier Foundation said last week that the standard has “no safeguards whatsoever for accessibility, security research or competition.” Even more, the standard enables content providers to control how web surfers will watch video in their browsers by enforcing specific “rules.”

Of course, the Electronic Frontier Foundation specifically states that it doesn’t support Digital Rights Management because it gives content owners the right to treat PC owners “as an adversary to be controlled.”

But even within the W3C itself, turmoil surrounds the EME, including the argument that it provides inadequate protection for end users. Regardless, the EME standard is now an official recommendation based on a decision made by the Director of the W3C, Tim Berners-Lee.




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