Widevine DRM License Server

VdoCipher is a first party Widevine DRM License Partner with Google. We provide Zero Risk video streaming solutions for media & education businesses to help them serve premium content on their site and mobile app with Hollywood grade security and functionalities.

Here you can find details of the security options possible with VdoCipher's Google Widevine DRM implementation

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What Is Widevine DRM ?

Widevine is Google's DRM licensing & encryption technology which helps OTT services(like Netflix, Hotstar) & Ed-tech platforms to secure their premium content on Chrome, Firefox, Edge browsers on Desktop, Android Apps & Android TV. Here are some of the major features of Google Widevine DRM:

   

Block Screen Capture in Android Apps

 

End-to-end Encryption

 

URL restriction, time based restriction

 

Offline downloads with time restrictions

Applying Widevine DRM Restrictions Based on Country, IP Address and Membership

IP and Geo-based whitelisting and blacklisting with Widevine DRM

Our IP and Geo restriction uses a JSON based configuration which allows for infinite customizability.

For instance you may require a whitelist within a blacklist within a whitelist. This can be done with a small JSON in our config. The best part is that almost infinite nesting is possible.

The IP whitelist allows for CIDR based configuration which can be setup over corporate and university subnets. The CIDR configuration also allows you to constrain specific ISP networks. This proves valuable in setting up Value-added-services on ISP and Telecom networks. 


  {
    "ipGeoRules":"[
      {
        "action": "false",
        "ipSet": [],
        "countrySet": []
      },
      {
        "action": "true",
        "ipSet": [],
        "countrySet": ["IN", "GB"]
      }
    ]"
  }

Sample JSON object to implement whitelisting

Google Widevine DRM Security Levels

Quality-constraints based on Device security Level

Our multi-platform DRM uses the maximum security features available on a device. For instance Widevine DRM provides three levels of security - L1, L2 and L3, with L1 devices offering the highest security.

A common implementation solution is to stream premium HD content only on devices supporting L1 security. Most Android devices for instance support L1 security. L2 and L3 devices (such as Chrome on Desktops) on the other hand receive standard-quality video streams.

You can likewise specify other device requirements (for example HDCP status) as part of DRM license.

Applying Time-based Restrictions

Rental constraint for offline files

You can allow your viewers to download an encrypted version of the video to their Android, iOS or Chrome devices. This video can be made to expire after a certain time by specifying a rental duration. The access token in this case also need to specified to allow persistence of license. Our Android SDK also allows managing downloads and playback of offline videos.

Session time restrictions

Our unified multi-DRM APIs allow you to configure the session duration for playback during generating the license. This can be useful when the content is very sensitive. Google Widevine DRM, FPS DRM both have these features.

Key Management Details Of Widevine DRM

Browser, App compatibility with Widevine DRM

Google Widevine DRM secured playback can play in Chrome, Firefox, Edge browsers on Desktop; Chrome , Edge, Samsung Internet browsers on Android, and native Android App. While it gurantees download prevention in browser based playback, it also has additional advantage of screen capture block in your android app integrations.

Encoder consumer workflow via DRM 

The Encoder consumer workflow for content key generation allows separating the concerns for key generation and encoding into multiple micro-services. This is recommended for restricting access to your authorization keys to minimal number of applications.

Key Handling with CMS using Widevine DRM

DRM configuration allows setting up with custom content key which can be a primary key in your video management CMS. This setup allows easy configuration without any major changes in your existing DB.

Multi-DRM with unified encryption and licensing API utilizes a single asset ID without raking up technical debt. Unified licensing API takes out the worry from handling multiple streams and devices separately.

Sample Architecture used by VdoCipher Widevine DRM Licensing

Google Widevine DRM Architecture for Vdocipher integration