1 DRM 표준 기술 XrML 2002. 11. 26 컴퓨터과학과 정희선. 2 Contents DRM 이란 ? ...

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DRM 표준 기술 XrML

2002. 11. 26

컴퓨터과학과 정희선

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Contents DRM 이란 ? Philosophy Underpinning Standards Groups Interested in Rights Language MPEG21 What is OASIS? What is XrML? XrML 의 기본 문법 XrML 데이터 모델 XrML 2.0 Core Structure XrML 등장 배경 XrML 설계목표 XrML 데이터 모델

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DRM 이란 ? Digital Right Management 디지털 자산에 대한 권리를 안전하게 보호하고

체계적으로 관리하기 위한 기술적인 메커니즘 저작권 관리기술

콘텐츠 식별자 (DOI:Digital Object Identifier) 콘텐츠 메타데이터 (INDESC, Interoperability of Data i

n Ecommerce System) 콘텐츠 권리명세언어 : XrML, ODRL, XACML

저작권 보호기술 암호 요소기술 키 분배 및 관리 TRM(Tamper Resistant Module) 디지털 워터마킹

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DRM 기술 개념

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사용자 규칙 설정

컨텐츠 암호화

라이센스 , 패키징된 컨텐츠 생성

라이센스 관리

사용 이력수집 , 분석

모니터링

컨텐츠 복호화

사용규칙 적용

사용 이력 보고

불법 행위 감지

컨텐츠 암호화 모듈 라이센스 관리 서버 클라이언트 모듈

라이센스 요청

등록 사용보고

DRM 솔루션 시스템 플로

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Philosophy Underpinning

Enable trusted systems to interoperate for end-to-end DRM

Single language across all media types, platforms, formats, resources, products & services to facilitate interoperability

Application/domain agnostic structure Comprehensive to express wide variety of business

models Application to all phases of life cycle Extensible to allow adaptability and minimize future cost

of change Ease of implementation and deployment

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Standards Groups Interested in Rights Language MPEG (http://mpeg.telecomitalialab.com/index.htm)

OASIS (http://www.oasis-open.org/)

TV Anytime (http://www.tv-anytime.org/)

WAP Forum

ISMA

3GPP

CEN/ISSS

PRISM (http://www.prismstandard.org/)

ICE

OeBF (http://www.openebook.org/)

IDRM / IRTF

SMPTE Dcinema

WS-I Alliance

IEEE

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MPEG 21

Overview of MPEG 21Work Items Under Development

IPMP - Intellectual Property Management and Protection

DID - Digital Item Declaration DII - Digital Item Identification DIA – Digital Item Adaptation RDD - Rights Data Dictionary REL - Rights Expression Language

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What is OASIS?

Standards are created under an open, democratic, vendor-neutral process Any interested parties may participate, comment No one organization can dictate the standard Ensures that standards meet everyone’s needs,

not just largest players’ Open to all interested parties…..Individual

Memberships All discussion open to public comment One organization/One vote Resulting work is guaranteed to be representative of

the industry as a whole, not just any one vendor’s view

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Core protocols, messaging; e.g. HTTP

XML, XSL, namespace, DOM, etc.

Horizontal, e-business framework

Vertical industry applicationsOASIS, industry associations

OASIS

W3C, ISO

IETF

Where OASIS Fits

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Vendors have submitted specs to OASIS

WSXL from IBMXOCP from BEA SystemsxCBL from Commerce OneITML from JamcrackerCRML, others from MSI Business Soluti

onsXrML from ContentGuard

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OASIS Rights Language TC

ContentGuardHewlett Packard MicrosoftReutersIBMVerisignCisco

NTTKPMGEntrustDivine.comCommerce OneEntegrity

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Why XrML is the Language of Choice

Open StandardsUseful for Any Business ModelInteroperableExtensibleCompanion Language SDK

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What is XrML?

XrML – eXtensible rights Markup Language Originates from Xerox PARC in 1994 Provides a universal method for securely specifying and

managing rights (and associated conditions) for all kinds of resources including digital content and services

Supports content integrity and entity authentication and confidentiality within the specification

Encodes in XML, leverages standard XML schemas, namespaces, digital signatures etc.

Is highly flexible, customizable, and extensible

Is available at www.xrml.org

http://www.xrml.org/

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XrML 2.0 Is Built On Standards

XML 1.0 SpecificationXML SchemaNamespaces in XMLUniform Resource Identifiers (URI): Generic SyntaxDigital Object Identifier (DOI) ISO 3166 Codes for representing names of countrie

s ISO 4217 Codes for representing currencies and fun

dsXML Path Language (XPath) Version 1.0

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XrML 기본 문법<ElementType name=“ 영화” content=“eltOnly” order=“seq” model=“closed”>

<element name=“ 제목” type=“string” />

<element name=“ 주인공” type=“string” />

<element name=“ 가격” type=“Integer” />

</ElementType>

< 영화 >

< 제목 > 엽기적인그녀 </ 제목 >

< 주인공 > 전지현 </ 주인공 >

< 가격 >1000</ 가격 >

</ 영화 >

XML 문서 예제

XrML 기본 문법

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XrML 데이터 모델

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XrML 구성 요소

라이센스 (license)권한부여 (Grant)사용자확인 (Principal)권리 (Right)리소스 (Resource)조건 (Condition)

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XrML 2.0 Core Structure

Right (view, play, print, copy, forward, etc.)

Resource(work, service, name, etc.)

Condition (fee, time, geography, etc.)

Principal (person,Device, application, etc.)

Four Key Components

Granting Mechanisms– Grant– License

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XrML 2.0 Supports or May Utilize Additional Industry Standards

Dublin Core Metadata Initiative Resource Description Framework (RDF) Universal Description, Discovery and Integration

(UDDI) Web Services Definition Language (WSDL) XML-Encryption Syntax and Processing XML-Signature Syntax and Processing

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컨텐츠 암호화 모듈 별도의 파일 시스템 적용 방식 원본 컨텐츠를 암호화한 파일의 헤더나 풋터에

정보를 저장하는 방식 사용할 때 마다 라이센스를 받아오는 방식

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XrML Extensibility Architecture

FutureExtension

FutureExtension

Future Extension

XrMLCore

ContentExtension

(CX)

XrMLStandardExtension

(SX)

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FutureExtension

FutureExtension

Future Extension

XrMLCore

MPEGExtension

(MX)


(SX)

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FutureExtension

FutureExtension

TV Anytime Extension

XrMLCore

MPEGExtension

(MX)


(SX)

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FutureExtension

Learning Technologies

Extension


XrMLCore

MPEGExtension

(MX)


(SX)

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Web ServicesExtension

Learning Technologies

Extension


XrMLCore

MPEGExtension

(MX)


(SX)

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Sample Extension Design

Core XrML Schema

TVAX Extension Schema

MPEG Extension Schema

TV Anytime Rights

Solution uses elements from uses elements from

uses elements

from

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ISMA

3GPP

SMPTE DC

OeBF SAML

ebXML

WS-I

Alliance

DVB

PRISM

WSIA TC

TV Anytime

Standards UniverseW3C

IETF

ETSI

ECMA

CEN/ISSS

XACML

MPEGOASIS

RLTC

XBRL Biometrics TC

OASIS Provisioning

TC

IEEE Learning

Technologies

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ISMA

3GPP

SMPTE DC

OeBF SAML

ebXML

WS-I

Alliance

DVB

PRISM

WSIA

TV Anytime

MPEG ConstellationW3C

IETF

ETSI

ECMA

CEN/ISSS

XACML

MPEGOASIS

RLTC

XBRL Biometrics TC

IEEE Learning

Technologies

OASIS Provisioning

TC

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ISMA

3GPP

SMPTE DC

OeBF SAML

ebXML

WS-I

Alliance

DVB

PRISM

WSIA

TV Anytime

OASIS ConstellationW3C

IETF

ETSI

ECMA

CEN/ISSS

XACML

MPEGOASIS

RLTC

XBRL Biometrics TC

IEEE Learning

Technologies

OASIS Provisioning

TC

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MPEG and OASIS CombinedMPEG and OASIS Combined

MPEG

3GPPSAML

XACML

ebXML

DVB

PRISM

WSIA

TV Anytime

W3C

IETF

ETSI

ECMA

CEN/ISS

ISMA

SMPTE DC

XBRL Biometrics TC

WS-I

Alliance

OASIS

RLTC

IEEE Learning

Technologies

OASIS Provisioning

TC

OeBF

??

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XML 서명무결성을 보장하기 위한 방법으로 W3C 의

XML 서명 방법을 사용< 영화 >

< 제목 > 엽기적인그녀 </ 제목 >

< 주인공 > 전지현 </ 주인공 >

< 가격 >1000</ 가격 >

</ 영화 >

<Signature>

<SignedInfo>…< SignedInfo>

<SignatureValue>AE13EZFD455…..<SignatureValue>

</Signature

1 DRM 표준 기술 XrML 2002. 11. 26 컴퓨터과학과 정희선. 2 Contents DRM 이란 ? ...

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