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Professional MPEG & DVB Software


About CI Plus

CI Plus is an extension to the classic EN 50 221 standard. It adds an extra layer of security to the communication between the Host (STB, IDTV or Headend) and the CI Module, secures the content on the transport stream interface and enforces copy protection regulation compliance. CI Plus compatible hosts are also compatible to standard DVB-CI modules. MHEG-5 has been defined as the new standard for graphical MMIs. In compatible hosts, the MHEG-5 MMIs will replace the limited EN 50 221 Highlevel MMIs.

The CI Plus specification is available at .
Due to the aquisition of TrustCenter, Symantec is currently administrating the licensing procedure and the X.509 infrastructure.

Our Solution

The GkWare CI Plus software is a simple add-on to our popular CI Stack. Customers that wish to perform an upgrade just have to include the new source code and very few new APIs in their projects. The PCMCIA driver interface has not been changed. We also give you the choice for the MHEG-5. You can, but you do not have to choose our MHEG-5 engine.

No surprises: Our stack has already been validated against several 3rd-party implementations of the CI Plus standard.

Certified for CI+ 1.3 compliance

The sunrise phase for the updated CI+ 1.3 specification ended in August 2012. We are offering software updates including the new CI+ 1.3 features to existing customers. Our MHEG-5 stack has been tested for HD compliance and interoperability tests have been successful for the new CI+ 1.3 features.

Ready for CI+ 1.4

A new specification version 1.4 has been released in September 2013. Development for the new features is complete and we are waiting for the first compatible hardware to test on (New hardware is required due to the transport stream interface changes for multi-stream support) and other 3rd-party implementation to test against.

Test Material

As part of our own developments, we also created a lot of test material which can be licensed/purchased separately from our software stack. Material available for purchasing includes:

  • Transport stream (de-)scrambling software for Windows (implementing the AES & DES TS scrambling algorithms)
  • Reference Streams scrambled with fixed AES and/or DES keys
  • CI Modules implementing parts of the CI Plus Specification, based on our BISS CI Module

We are also operating a custom X.509 infrastructure that allows companies without a valid license from the CI Plus Trust Authority to start their development. Certificates and the documentation for this replacement "Licensee specification" are available on request.


To ensure that you get the fastest and best possible support for the first steps, we selected SkyDigita as agent for our CI/CI+ products in Asia.


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Customers in Asia should contact our local Agent SkyDigita for more information.


Customers in all other regions should contact us directly.