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<!DOCTYPE concept

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<concept id="GUID-EAF3FCBE-A68C-4881-A461-774D481DD315" xml:lang="en"><title>Supported

OMA DRM v2.0 features</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>The following table summarizes the OMA DRM v2.0 features that the Symbian

platform supports.</p>

<table id="GUID-A06BFAD8-500A-4A39-A4E9-4CD04927BBD4">

<tgroup cols="2"><colspec colname="col1"/><colspec colname="col2"/>

<thead>

<row>

<entry><p>Feature</p></entry>

<entry><p>Description</p></entry>

</row>

</thead>

<tbody>

<row>

<entry><p>The <xref href="GUID-DBB9B5EA-6A15-42A0-9511-96756BAC382F.dita">rights

object  acquisition protocol </xref> (ROAP) schema parsing and processing

over HTTP</p></entry>

<entry><p>ROAP enables devices to request and acquire rights objects securely

over HTTP from a rights issuer.</p></entry>

</row>

<row>

<entry><p>Storing <xref href="GUID-788FCBFA-B4FB-4001-B838-4B59995E2E33.dita">rights

issuer</xref> context information</p></entry>

<entry><p>The rights issuer context information, such as agreed protocol parameters,

protocol versions, and certificate preferences, is stored in a secure location

inside the device.</p></entry>

</row>

<row>

<entry><p>Certificate checking, including online certificate status protocol

(OCSP) response validation</p></entry>

<entry><p>A device must verify signed rights issuer responses and <xref href="GUID-6E09A5CE-F51A-4FFB-A578-70D09C38AAFA.dita">rights

objects</xref> as well as check the validity and status of the rights issuer

certificate and any other revocable certificates in the rights issuer certificate

chain. To enable the device to check the certificate, the rights issuer must

include a complete set of OCSP responses for its certificate chain when sending

signed responses to the device.</p></entry>

</row>

<row>

<entry><p>DRM content and rights object formats, including rights object fields

expressing permissions and constraints</p></entry>

<entry><p>Rights object are formatted in the rights expression language (REL),

which is a mobile profile of open digital rights language (ODRL) v1.1. REL

enables accurate specification of relevant metadata and actual rights. The <xref href="GUID-1DF3E313-4FBE-495B-8DC7-CF7024C9B929.dita">DRM content format</xref> is

specified in the OMA DRM Content Format v2.0 document (included in the OMA

DRM v2.0 specification).</p></entry>

</row>

<row>

<entry><p>Replay protection for rights objects</p></entry>

<entry><p>Rights objects that contain counters, intervals, timed counters

or accumulated time constraints are monitored by the DRM system to prevent

sending the same rights object several times.</p></entry>

</row>

<row>

<entry><p>DRM time and DRM time synchronization</p></entry>

<entry><p>Secure time for rights enforcement. Time is synchronized automatically

with ROAP.</p></entry>

</row>

<row>

<entry><p>Capability signaling</p></entry>

<entry><p>Capabilities are signaled using HTTP headers and the user agent

profile.</p></entry>

</row>

<row>

<entry><p>Domain model support</p></entry>

<entry><p>The service provider can enable or

disable this feature.</p></entry>

</row>

<row>

<entry><p>Secure backup and restore of content and usage rights</p></entry>

<entry><p>Users can take device backups that include DRM protected content

and rights objects. The security level is ensured with strong encryption.</p></entry>

</row>

<row>

<entry><p>Playback of OMA DRM v2.0 protected audio in third party applications</p></entry>

<entry/>

</row>

<row>

<entry><p>Binding DRM v2.0 specific rights objects to the SIM card</p></entry>

<entry><p>If the device supports a SIM/USIM/R-UIM and the <codeph>uid</codeph> element

of a child context element of an individual element within an OMA DRM v2 rights

object specifies an IMSI, the <xref href="GUID-E7F74FD2-C79E-4C9D-ADBC-5366F424D347.dita">DRM

agent</xref> observes the following behavior: when the associated content

is selected for rendering, the DRM agent checks that it matches the IMSI on

the currently installed SIM/USIM/R-UIM.</p></entry>

</row>

</tbody>

</tgroup>

</table></conbody></concept>