Most people now watch videos on over-the-top (OTT) platforms like Netflix and Amazon Prime instead of storing video files on their devices.
Because it’s easy for users to watch the same videos on different devices, content producers and owners face a number of problems, such as piracy and the fact that a single subscription plan limits how many streams can be played at once.
Also, it is a big challenge for the industry to get HD content to a user’s device while making sure that the hardware and software are secure enough to stop leaks.
Digital rights management (DRM)an anti-piracy tool is a way to solve these problems.
Widevine by Google is a popular DRM system for HD content that can be used on Chrome and Firefox web browsers, Android OS on mobile devices, and smart TVs.
Is used by most well-known OTT players and video streaming services to keep their content safe.
Uses hardware, software, and code to protect video streams.
CENC, which stands for “common encryption protection scheme,” is at the heart of DRM protection. It defines the encryption standards and key mapping methods that a DRM content decryption module (CDM) uses to decrypt video files on the client device.
Widevine uses CENC protocols to link video files to licencing keys that. Are given to content packagers, so that client devices can play videos at different bit rates.
Adaptive streaming is a must for content creators because letting people. Watch HD content on devices that aren’t secure could cause them to lose money.
Widevine’s definition of L1, L2, and L3 security levels says that L1 is the safest level for playing premium HD videos from major OTT services.
Widevine uses the trusted execution environment (TEE) of the device’s processor to send high-quality video.
The TEE keeps code and data safe in a safe area of the processor. This makes it more secure and less likely to be hacked. Since it doesn’t depend on the operating system and can use the full power of the processor and memory.
TEE applications also rely on hardware. The encryption keys are built into the processor chip, which makes it hard to change them.
The TEE is used to create a separate zone for Widevine’s code to run in. This gives L1 security.
The TEE works on both video and encryption at the same time.
The ability to play DRM content on a web browser without the need for a separate. Plug-in is one of the advantages offered by multi-DRM systems. You can enable the playing of DRM material on the majority of platforms with a single web application. Eliminating the need to develop native programmes for each client platform, such as personal computers and mobile devices.