BS ISO 26430-3:2008

This standard BS ISO 26430-3:2008 Digital cinema (D-cinema) operations is classified in these ICS categories:

• 37.060.99 Other standards related to cinematography
• 35.040.40 Coding of audio, video, multimedia and hypermedia information

This standard presents a specification for a generic Extra-Theatre Message (ETM) format for use with unidirectional communications channels used in security communcations for Digital Cinema (D-Cinema) systems.

The ETM specification is a generic XML security wrapper that includes specific fields which can be extended to carry different kinds of information to meet various application-level requirements. (For example, the Key Delivery Message (KDM) is a specific instance of this format.) The ETM uses W3C Extensible Markup Language (see [XML]) to represent the information payload. It provides security using the XML encryption and signature primitives.

Note: The brackets convention "[...]" as used herein denotes either a normative or informative reference.