IEC TS 62224:2007 pdfダウンロード

IEC TS 62224:2007 pdfダウンロード。Multimedia home server systems – Conceptual model for digital rights management
1 Scope
This technical specification explains the conceptual mode of a protocol specification toexchange licence information between DRM modules and outlines what should be defined asstandards.
2 Normative references
The following referenced documents are indispensable for the application of this documentFor dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
ISO/IEC 15408-1:2005, Information technology – Security techniques – Evaluation criteria forIT security – Part 1: Introduction and general model
TU-T Recommendation X509:2000, Information technology – Open Systems Interconnectior- The Directorv: Authentication Framework
3 Terms,definitions and abbreviated terms
3.1Terms and definitions
For the purposes of this document, the following terms and definitions, in addition to some ofthose given inITU-T Recommendation X.509,apply.
3.1.1
access conditioninformation that describes the content usage conditions
NOTE The access condition represents the conditional rules that restrict user ability to manipulate the contentinformation and is a part of authorization information in the licence for the content.
3.1.2
access control list
list of conditions to access content for each principal such as content users, user groups and
so on
3.1.3
asset identifier
information which identifies an asset which may include one or more contents
NOTE A licence should include an asset identifier, There are cases, for example, when an asset identifier is iraccordance with a content identifier, which specify the group of content identifier or a part of the content identifiedby the content identifier.
3.1.4
certification authorityauthority trusted by one or more users to create and assign public-key certificates
[ITU-T Recommendation X.509,3.3.171
3.1.5
certificate revocation listsigned list indicating a set of certificates that are no longer considered valid by the certificateissuer. ln addition to the generic term CRL, some specific CRL types are defined for CRLsthat cover particular scopes
[ITU-T Recommendation X.509，3.3.12]
3.1.6
class certificate
certificate which declares the justifiability of TREM and its class public key with its related
information
3.1.7
class private key
key kept privately inside a TREM being subject to the same TREM class
NOTE The TREM developer or manufacturer should keep and manage this key privately
3.1.8
class public key
public key corresponding to the class private key
3.1.9
content credential
information to certify integrity of the content data and the generator of the content data
NOTE This information includes a digital signature of the content, i.e., the hash value of the content dataencrypted with the generator’s private key. ln general, it is added at the end of the protected content format (PCFdata.
3.1.10
content identifieridentifier which is a unique value assigned to each content that is a unit of informationprovided by the content holder
3.1.11
content key
content encryption key unique to each content under the symmetric key cryptosystem
3.1.12
data concatenation
concatenation of two bit-streams into a single bit-stream
NOTE The first bit of the second original stream is next to the last bit of the first original stream.
3.1.13
decoder TREMTREM in which encrypted content can be decrypted and played
3.1.14
destination TREM
TREM receiving a licence