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Using DRM with multiple keys

Encrypting with different keys per track based on CPIX documents

This demonstrates how a CPIX document can be used to set 3 different keys for audio, SD video and HD video tracks, along with DRM specific data for both PlayReady and Widevine.

The benefits of this solution:

  • Satisfy the DRM requirements of content owners
  • Enforce hardware DRM for premium features to offer highest possible protection
  • Use standard level of DRM protection for regular content to offer broad compatibility with end-user devices
  • Ensure maximum flexibility with separate encryption keys for audio, SD, HD, 4K etc.
  • Recommended by Google Widevine and Microsoft PlayReady
Output format: 

Input (.cpix)

Output (.mpd)