5) ECM List
ECM contains CAS supplier private information which carries the control word (encryption key) in a
secure manner and private entitlement information. Each ECM entry corresponds to one generated
ECM stream. Each SCG requires at least one ECM stream, otherwise nobody is able to descramble.
- ECM Generator:
ECMG responsible for generating this ECM stream (value from ECMG table)
- ECM ID <optional>:
‘ECM_id’ used when communicating with ECMG. Some ECMGs may require a
specific value for this (info from CAS supplier). If left empty some random ID is used.
- SCG:
Scrambling Control Group whose control words are transmitted by this ECM (value from SCG
table)
- Access Criteria:
Arbitrary binary data transmitted to the ECMG. Typically used to tell the ECMG
which clients should be able to decode the ECMs. Format and value is given by CAS supplier.
- Private Data:
Arbitrary binary data included as ‘private_data’ in the CA_descriptor of the PMT
associated to this ECM (info from CAS supplier).
- Status:
ECM stream status
Содержание MIE 16-00
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