SMPTE 430-1:2017
- D-Cinema Operations - Key Delivery Message
- standard by Society of Motion Picture and Television Engineers,
- Category: SMPTE
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This specification defines a "Key Delivery Message" (KDM) for use in Digital Cinema (D-Cinema) systems.The KDM has been designed to deliver security parameters and usage rights between D-Cinema contentprocessing centers (e.g. from post production to distribution, or from distribution to exhibition). The KDMcarries fundamentally three information types:
- Content keys for a specified Composition Play List (CPL).
- Content key parameters -- primarily the permitted key usage date/time window.
- The Trusted Device List (TDL) which identifies equipment permitted to use the content keys.
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