In situations in which hardware or licencing constraints preclude original equipment manufacturers (OEMs) from implementing the L1 level of security, Widevine offers the L2 and L3 levels of protection as an option to OEMs. This service is provided by Widevine as an alternative to OEMs.
It is possible for cryptography to exist at the TEE thanks to the L2 level, which is a rung below the L1 level and makes it possible for video processing to take place outside of the TEE. Because of this, the L2 level is one rung below than the L1 level.
The L3 level, on the other hand, makes it possible for cryptography and video processing to take place outside of the TEE or to be implemented when the TEE is unavailable. As a result of the fact that the L3 level can be implemented even if the TEE is unavailable, this is now feasible.
In spite of the fact that the vast majority of desktop CDMs operate at the L3 level, the security level of Android devices is typically at the L1 level.
The technology known as Arm TrustZone, which is incorporated into the TEE creation process by an overwhelming majority of chipset manufacturers, is what makes it feasible for the L1 layers to perform as they should. This technology was developed by Arm Corporation.
It is essential to be aware that Widevine, which is a reliable piece of software that has been placed in the trusted zone of the CPU, is able to decode encrypted video content that is kept in this area. This information can be found by searching “widevine decoder” on the internet. If you search for “Widevine” on Google, you should be able to find this information.
After completing this stage, the Android operating system will proceed to use a procedure that is predicated on the idea of beginning. A session that does not include any risks and is used in conjunction with a video driver in order to play back the content.
Consumers are unlikely to be interested in the L3 level since content producers anticipate that digital rights management (DRM), an anti-piracy tool, will only deliver sub-HD resolutions in browsers and applications. Users will find the L3 level less appealing as a result of this. This has a significant impact on the overall user experience, particularly when it comes to premium content, and it is one of the main reasons why the L3 level is not desirable.
When it comes to the delivery of a video asset, the end user will have the chance to obtain the greatest possible quality in the form of high-definition video. And content in ultra-high definition if and only if the device in question satisfies the requirements of L1 standards.
The year 2010 is significant as the year that Google successfully completed its acquisition of Widevine Technologies.
During this time period, over-the-top platforms, which are also referred to as OTT platforms on occasion, were enjoying a growing level of popularity due to. The decrease in the cost of utilising the internet, in addition to the development of mobile devices that are more reasonably priced. And the consequent rise in demand for hardware with Android as its primary operating system. In addition, throughout this time period, the cost of utilising the internet began to decrease at an increasing rate.
Widevine’s previous edition was referred to as Widevine Classic, and software that was compatible with it was readily available. Smart TVs made by Samsung and LG were able to support Android versions as recent as 5.1 when they were first released.
Videos could only be played back in the.wmv format, as this was the only one that was supported by the device.
The Widevine Modular version is an improved version that is intended to collaborate with web browsers and versions of Android that have been released in the last few years. In addition to devices that have been developed in the last few years, this version of Widevine is also intended to work with devices that were developed in the last few years.
It can function with adaptive bitrates in addition to being compatible with the HLS, CMAF, and MPEG-DASH file formats.
Although Widevine’s browser support does not now meet the L3 security standard, the business is continually working to improve its security in spite of this shortcoming.
Verified media path, often known as VMP technology, is their most current attempt to limit leaks caused by browsers.
Widevine is capable of immediately determining and confirming whether or not the browser framework in question is authentic. You will be able to determine, through the utilisation of VMP, whether or not the media player you are using is playing content that is legal from a moral and ethical perspective.
When it comes to web browsers, the vast majority of those that are compatible with Widevine CDM are also compatible with VMP. This is especially true for compatibility with VMP.
