Welcome to 4C EntityAnnouncementsNovember 29, 2007 - The 4C Entity, LLC is pleased to announce that licensing for a new CPRM Specification, SD Memory Card:
SD-Separate Delivery Video Part (SD-SD Video), Revision 0.9 is now available. With the addition of the Compliance Rules for SD-SD Video, the License Agreement, including the Compliance Rule exhibits, is now at version 1.5. All new licensees will enter that document (or subsequent revisions, as appropriate). Since the change from the previous version is the addition of the new Specification and Compliance Rules, these documents will be provided to existing licensees for their use in association with their existing License Agreement. Since there is no mandatory change made in this revision, the use of the new Specification document and related Compliance Rules is effective upon this notice.
You will find that the license language in the new version 1.5 of the 4C CPRM/CPPM License Agreement has not changed. The only changes are in the Compliance Rules.
September 25, 2007 - The 4C Entity, LLC is pleased to announce that a white paper entitled "SDSD-CPRM: Flexible Protection for Content Protection" is now available. SDSD-CPRM (Secure Digital - Separate Delivery) is a new extension to the SD Memory Card that addresses the difficulties of sharing and protecting digital content. It uses Content Protection for Recordable Media methods defined by 4C Entity to separate encrypted digital content from the keys that release (decrypt) it. The SDSD-CPRM separate delivery mechanism greatly benefits the consumer, content provider, and device manufacturer. The consumer can freely manage and share encrypted content, the content provider is able to deliver and protect content, and the device manufacturer can develop products with a common SD Memory Card interface. This paper reveals the flexibility that SDSD-CPRM provides for sharing and moving digital content along with a detailed explanation of the CPRM implementation.
August 27, 2007 - The 4C Entity, LLC would like to announce that CPRM Specification, DVD Book, Revision 0.97a
is now available. The revisions include correction of minor editorial errors, such as the recovery of material
that was present in Revision 0.96 but missing in Revision 0.97. There are no technical updates in Revision 0.97a.
May 21, 2007 - The 4C Entity, LLC is pleased to announce that it is now licensing a new CPRM Specification document --
SD Memory Card Book: SD-Separate Delivery Part (SD-SD), Revision 0.9 and CPRM
Specification, SD Memory Card Book: SD-Separate Delivery Audio Part (SD-SD Audio), Revision 0.9 are now available-- subject to two new Compliance
Rule exhibits to the 4C CPRM/CPPM License Agreement. The License Agreement, including the Compliance
Rule exhibits, is now at version 1.4, and all new licensees should enter that document. Drafts of these Specification documents were previously circulated
to Adopters for review and comment. The CPRM architecture of SD-SD handles Content Key(s) and encrypted content data. The Content Key is stored in the SD
Memory Card. The encrypted content data may be stored in the same SD Memory Card or separately in another media such as HDD. The CPRM for SD-SD Audio
document describes details to protect audio content in the SD-SD architecture. Changes have also been made to the
4C Ordering forms so that Adopters may order the necessary key material to implement these new capabilities.
May 15, 2007 - The 4C Entity, LLC is pleased to announce that new CPRM Specification,
SD Memory Card Book: SD-Separate Delivery Part (SD-SD), Revision 0.9 and CPRM Specification, SD Memory Card Book:
SD-Separate Delivery Audio Part (SD-SD Audio), Revision 0.9 are now available. The CPRM architecture of SD-SD handles Content Key(s) and encrypted
content data. The Content Key is stored in the SD Memory Card. The encrypted content data may be stored in the same SD Memory Card or separately in
another media such as HDD. The CPRM for SD-SD Audio document describes details on how to protect audio content in the SD-SD architecture. Adopters are cautioned,
however, that some changes to the Compliance Rules are being finalized, and this Specification may not be implemented under the 4C License Agreement until
those changes are posted. So, the posted Specification documents referenced above are currently for information only.
May 7, 2007 - The 4C Entity, LLC is pleased to announce that CPRM Specification,
DVD Book, Revision 0.97 is now available. The revisions extend application of CPRM to the DVD-Video format recorded on CPRM compliant DVD
media (i.e. DVD-R, DVD-RW, and DVD-RAM). Adopters are cautioned, however, that some changes to the Compliance Rules are being finalized, and this
Specification may not be implemented under the 4C License Agreement until those changes are posted. So, the posted Specification referenced above
is currently for information only.
May 7, 2007 - The 4C Entity, LLC is pleased to announce that CPRM Specification,
Introduction and Common Cryptographic Elements, Revision 1.01, and SD Memory Card Book Common Part, Revision
0.961 are now available. The revisions include clarifications related to MKB Extensions.
February 23, 2007 - The 4C Entity, LLC is pleased to announce that CPRM Specification,
SD Memory Card Book, SD-Audio Part, Revision 0.97 is now available. The revisions extend usage rules to incorporate rules based on date and time.
The revisions also extend clock function modalities to define previewing and recording rules for devices (both categories, with and without network
capabilities) and with a tamper resistant clock. These revisions are the result of general on-going review of our usage rules based on comments from
Founders, Adopters, Content Participants and others.
December 13, 2006 - The 4C Entity, LLC hereby notifies its Adopters that the prohibition on use of unprotected DVI
outputs for audiovisual content originally protected using CPRM on products produced on or after December 31, 2006, is extended. The length of
the extension (and the new "sunset date" for unprotected DVI outputs with regard to CPRM protected content) will be notified to Adopters as soon
as possible. This date will be based on marketplace developments and established in coordination with other content protection organizations
which have approved CPRM as an authorized recording technology.
November 29, 2006 - The 4C Entity, LLC is pleased to announce that CPRM Specification, SD
Memory Card Book, SD-Video Part, Revision 0.96 is now available. The revisions comprise the modification of the field that describes the version number of the SD-Video data
structure, i.e. the VERN field, and a correction in the Copy Process II. These revisions are the result of general on-going review of our specifications based on comments from
Founders, Adopters, Content Participants and others. Further changes may be anticipated as additional comments and developments warrant.
December 23, 2005 - The 4C Entity, LLC is pleased to announce that CPRM Specification, SD Memory Card Book, SD-Binding Part, Revision 0.92 is now available. The revisions comprise the modification of the SD-Binding object file to incorporate an optional header. This header facilitates access to the object's attributes such as content title, creation date, etc. These revisions are the result of general on-going review of our specifications based on comments from Founders, Adopters, Content Participants and others. Further changes may be anticipated as additional comments and developments warrant.
December 16, 2005 - The 4C Entity, LLC is pleased to announce that Version 1.4 of the CPRM For SD-Binding License Agreement including revised Authorized Use #1: Mobile Phones, is now available. Specifically, an SD-Binding Participating Device may pass Decrypted CPRM for SD-Binding Content to a third-party digital rights management technology which served as the original input for such Decrypted CPRM for SD-Binding Content as well as Decrypted CPRM Audio Content to an analog output.
November 8, 2005 - The 4C Entity, LLC is pleased to announce that the CPRM for Content Distribution Addendum for SD-Binding is now available. This Addendum, when executed, allows existing Adopters of the CPRM for SD-Binding License Agreement to use CPRM in the commercial distribution of Commercial Content. Three Authorized Uses are currently contemplated, including Network Download, Pre-Recorded Content and Record-on-Demand.
October 31, 2005 - The 4C Entity, LLC is pleased to announce that CPRM Specification, SD Memory Card Book, SD-Video Part, Revision 0.95 is now available. The revisions comprise the incorporation of ISDB-T Mobile Video Profile and H.264 Mobile Video Profile. These revisions are the result of general on-going review of our specifications based on comments from Founders, Adopters, Content Participants and others. Further changes may be anticipated as additional comments and developments warrant.
September 20, 2005 - This is to inform all 4C Licensees that 4C Entity, LLC has extended the deadlines contained in Section 4.2.1(ii)(c) of the CPPM Compliance Rules for DVD Audio (Exhibit C-1 to the CPRM/CPPM License Agreement) and in Section 4.2.1(ii)(c) of the CPRM Compliance Rules for
Recording and Playback of Audio Content (Exhibit C-2 to the CPRM/CPPM License Agreement). The previous provisions prohibited the use of IEC 958/60958 outputs in Participating Players that are of models that are first introduced on or after October 1, 2005 and in all Participating Players made on or after December 31, 2006 (regardless of when a particular model is introduced). The extension of these dates is for three years in each case (i.e., with the listed outputs prohibited in models that are first introduced on or after October 1, 2008 and to any product made on or after December 31, 2009). The purpose of this notice is to clarify that these dates were extended earlier this year and the currently applicable sunset dates are October 1, 2008 and December 31, 2009, as noted above, permitting the continued use through those dates of the outputs that are permitted by Section 4.2.1(ii) in those products. 4C Entity will follow this posting with appropriate changes in the compliance rules that will be released in the near future.
February 9, 2005 - This is to inform all 4C Licensees that 4C Entity, LLC will extend the deadlines contained in Section 4.2.1(ii)(c) of the CPPM Compliance Rules for DVD Audio (Exhibit C-1 to the CPRM/CPPM License Agreement) and in Section 4.2.1(ii)(c) of the CPRM Compliance Rules for Recording and Playback of Audio Content (Exhibit C-2 to the CPRM/CPPM License Agreement). The current provisions prohibit the use of IEC 958/60958 outputs in Participating Players that are of models that are first introduced on or after October 1, 2005 and in all Participating Players made on or after December 31, 2006 (regardless of when a particular model is introduced). The extension of these dates is likely to be for a three-year period (i.e., to October 1, 2008 and December 31, 2009), although these dates have not yet been finalized at this time. The purpose of this notice is to allow licensees that are finalizing their products for release in the fall of 2005 to know that they will be permitted to continue to use the outputs that are permitted by Section 4.2.1(ii) in those products. We will provide further information as soon as possible.
February 2, 2005 - The 4C Entity, LLC is pleased to announce that the CPRM Specification, SD Memory Card Book, SD-Binding Part, Revision 0.91 , is now available. January 31, 2005 - The 4C Entity, LLC is pleased to announce a new set of documents for use of CPPM and CPRM (Audio and Video) technologies. The new documents include: August 17, 2004 - The 4C Entity, LLC is making available the CPRM/CPPM Content Distribution Addendum that when executed, allows existing Adopters to use CPRM in the commercial distribution of Digital Audio Content and Digital Video Content. Three Authorized Uses are currently contemplated, including Network Download, Pre-Recorded Content and Record-on-Demand. August 6, 2004 - The 4C Entity,LLC is pleased to announce the availability of the 0.9 version of the Specification for CPRM for Network Download. Licensing for this new functionality will be available very shortly, in the form of an addendum to the basic CPRM/CPPM License Agreement. Notice will be given when the license information is available and when licensing will commence. In the meantime, we welcome review and comment on the specification document. · January 27, 2003 - The 4C Entity, LLC has updated the C2 Block Cipher, the CPPM Specification, Introduction and Common Cryptographic Elements and the CPRM Specification, Introduction and Common Cryptographic Elements specification to version 1.0. Please check our documents and versions webpage for more information. · September 20, 2002 - The 4C Entity, LLC has given Provisional Approval of DTCP-Protected Outputs. · August 12, 2002 - The 4C Entity, LLC is making available the CPRM/CPPM Content Participant Agreement which is provided purely for informational purposes and does not constitute an offer. · July 23, 2002 - The 4C Entity, LLC is making available the C2 Facsimile Device Keys and MKB's available to help in the debugging of CPRM/CPPM implementation . · April 3, 2002 - The 4C Entity, LLC has released the C2 Encryption and Decryption Licensing Agreements for execution. Any company who wishes to execute one or both of these agreements may do so now. · March 8, 2002 - The 4C Entity, LLC is making available two new SD Memory Card specifications. To obtain copies of these and other 4C Entity specifications please visit Publications and Current Versions. · December 7, 2001 - The 4C Entity, LLC is making available three new license agreements. Please visit the two new sections under Licensing which include the Associate Licensing Agreements menu and the C2 Encryption and Decryption Licensing Agreements menu. · July 3, 2001 - The 4C Entity, LLC is making available the C2 Facsimile Secret Constants and Test Vectors documents to help in the debugging of the C2 Block Cipher implementation . · January 12, 2001 - The 4C Entity, LLC has released the following Policy Statement on Use of Content Protection for Recordable Media, (CPRM) in Certain Applications. · The Content Protection System Architecture (CPSA) defines a comprehensive and efficient framework that makes it possible to integrate major existing content protection technologies · Information on obtaining a 4C Verance License is now available.
You may also wish to view Prior Announcements. |