SCTE 41 2004

In digital Cable systems, high value movies and video programs ("content") are protected by aconditional access scrambling system. A properly authorized CableCARD™ Point ofDeployment (POD) security module removes the scrambling and, based on the Content ControlInformation from the Headend, may rescramble the content before delivering it to consumerreceivers and set-top terminals ("Host devices") across the POD-Host interface defined in SCTE28.

This standard defines the characteristics and normative specifications for the system thatprevents unrestricted copying of such high value content as it crosses the POD-Host interface.

Content that is delivered unscrambled over Cable systems is not subject to this standard.Indeed, this standard would not provide any protection against unrestricted copying of suchcontent. Any unscrambled content output by the Host on the POD interface will not benefit byscrambling upon its subsequent output from the POD on that same interface.

This standard provides methods for authenticating Host devices, for binding POD modules toHost devices including Diffie-Hellman key exchange, for copy protection key generation, forrescrambling high value content to protect against unauthorized copying (after the POD moduleemploys the conditional access system to descramble it) and then descrambling by the Host,and for transmission and authentication of Copy Control Information. It also provides forrevocation of Host devices that are determined to be fraudulent or non-compliant.

This standard requires the use of technology that must be licensed from CableLabs. Thetechnology is called DFAST (U.S. Patent No. 4,860,353 and related know-how), and the licenseis PHILA - "POD-Host Interface License Agreement", available from CableLabs. Please refer tosection 1.2.3 under "DFAST Technology, PHILA, and PHICA" for contact information for such alicense.

Details

Published:

01/01/2004

ANSI:

ANSI Approved

Number of Pages:

78

File Size:

1 file , 410 KB