AES-128 Clear Key Encryption


EZDRM AES-128 Clear Key Logo

Advanced Encryption Standard (AES-128) Clear Key is part of the range of key server technologies supported by EZDRM alongside the full-featured DRM mechanisms and provides a quick and efficient means of validating the end to end encrypted delivery pipeline.

The features of Clear Key include:

  • Transport stream AES 128 CBC encryption for HLS
  • Sample AES encryption for HLS
  • MPEG-DASH AES CTR (coming soon)
  • Entitlement checking before key delivery

Key Benefits of AES-128 Clear Key Encryption


  • Universal support on client devices using legacy streaming implementations. The almost universal support for the base Apple HLS streaming using AES-128 encryption guarantees that this lowest common denominator format can reach the fullest range of legacy mobile devices.
  • End-to-end proof of concept support without DRM technology. By shortcutting the complexities of a DRM license mechanism and its proprietary data formats, Clear Key use enables white box testing across the media encryption/packaging, CDN and client player, where implementation errors and inefficiencies can rapidly surfaced.
  • Fast and efficient workflow. Clear Key encryption enables the lowest possible latency for media encryption and client decryption/playback due to the lack of complex license packaging/unpacking overhead.
  • Very rapid deployment. The technology is simple, and implementation requires no delay for licensing or other legal agreements to be hammered out.

Supported Platform

  • Browsers: Safari, Chrome, IE, Edge Opera and Firefox
  • iMac and MacBook
  • Windows Laptops and Desktops
  • Apple TV
  • Android Devices
  • iOS Devices
  • Set Top Boxes and Smart TVs

Supported Formats

  • HLS
  • Smooth Streaming
  • MPEG-DASH (coming soon)

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