• SMPTE 430-1-2006

SMPTE 430-1-2006

D-Cinema Operations - Key Delivery Message

Society of Motion Picture and Television Engineers, 10/03/2006

Publisher: SMPTE

File Format: PDF

$37.00$75.00


Published:03/10/2006

Pages:17

File Size:1 file , 180 KB

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 content processing centers (e.g. from post production to distribution, or from distribution to exhibition). The KDM carries 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.

The KDM is based on the D-Cinema generic Extra-Theater Message (ETM) format [ETM]. It uses XML to represent the information about the content decryption keys and TDLs, and provides security using standardized XML encryption and signature primitives. The KDM message uses X.509 digital certificates, specified in [D-Cinema Digital Certificate], to provide authentication and trust.

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