Key Delevery Message (KDM) Formulations
There are five different formulations defined in the SMPTE ST 430-1 KDM standard.
MIST and KEYMaster handle four of them :
| Formulation | Acronym | Description |
|---|
| Transitional 1 | T1 | This formulation contains only the recipient's certificate thumbprint. It's an obsolete formulation compliant with Interop content only, that should not be used anymore. |
| Modified Transitional 1 | MT1 | Contains only DCI « assume trust » certificate thumbprint compliant with both Interop and SMPTE content. This one is supposed to disappear in the future. |
| DCI any | DA | Contains only DCI « assume trust » certificate thumbprint compliant with SMPTE content only. |
| DCI Specific | DS | Contains one or more valid remote SPB or projector SPB certificates thumbprints compliant with SMPTE content only. |
For more information about the formulations :
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