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SCTE 23-2 2002
M00000209
New product
SCTE 23-2 2002 DOCSIS 1.1 Part 2: Baseline Privacy Interface Plus, (formerly DSS 02-10)
standard by Society of Cable Telecommunication Engineers, 01/01/2002
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Full Description
The intent of this BPI+ specification is to describe MAC layer security services for Data-Over-Cable Systems (DOCS) CMTS-CM communications. BPI+ security goals are twofold:provide cable modem users with data privacy across the cable network, andprovide MSOs with service protection; i.e., prevent unauthorized users fromgaining access to the network's RF MAC services.BPI+ provides a level of data privacy across the shared medium cable network equal to orbetter than that provided by dedicated line network access services (analog modems or digitalsubscriber lines).
The protected RF MAC data communications services fall into three categories:best-effort, high-speed, IP data services;QoS (e.g., constant bit rate) data services; andIP multicast group services.
The earlier BPI specification [DOCS2] had "weak" service protection because the underlyingkey management protocol did not authenticate CMs. BPI+ strengthens this service protectionby adding digital-certificate based CM authentication to its key exchange protocol.