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White Paper W950
39 June 2006
Preliminary version - PA4
initiatives. This will ensure the interoperability of
mobile terminals in the DRM area and also result in
a strong, competitive DRM standard.
The W950 supports OMA DRM 2.0 giving the same
user experience as OMA DRM 1.0. OMA DRM 1.0
is supported as described below.
FWL – forward lock
W950 supports OMA DRM Forward Lock which is
the simplest OMA DRM case, with no special
access keys defined. The content is provided in a
single DRM packaged file, thus protecting the
content from being distributed from the device by
the user. It enables a secure means for the content
provider to deliver/provide content which incurs a
charge. Forward Lock content will normally be
received by W950 as part of an MMS message or
via HTTP download. W950 supports OMA
Download. More information is available at
www.SonyEricsson.com/developer.
CD – combined delivery
W950 supports OMA DRM Combined Delivery/
Forward Lock. Content and associated access
keys are downloaded or delivered to the user as a
single DRM packaged file. This means the content,
or access keys issuer, controls the extent the
content can be used. As with pure Forward Lock,
the user will be unable to distribute this content for
use on another device.
SD – separate delivery
W950 supports OMA DRM Separate Delivery.
Content and associated access keys are received
as separate DRM packages, either simultaneously
or at different points in time. This enables the
distribution of content to other users and has the
same possibilities to control usage of the content
as exist with Combined Delivery/Forward Lock.
Distribution of the content to other users will
require the recipient to obtain access keys from the
rights issuer in order to use the content.
Protection properties
Content that is protected according to the OMA
DRM standard is given special properties.
Content with Forward Lock protection cannot be
further distributed: The user cannot send the
content to other devices since the “Send to” option
is disabled for media protected with Forward Lock.
All three types of protected content packages can
be transferred to the Media memory, thereby
enabling the storage of large amounts of content.
OMA DRM Forward Lock/Combined Delivery
protected content on removable media cannot be
used in another device other than the device it was
saved on. Only Separate Delivery packages can be
used on another device, after obtaining access
keys to use the content on the new device. Access
keys to use the content can never be distributed
from user to user (device to device). Access keys
always have to be obtained directly from the rights
issuer.
DRM package
DRM packaging software is typically included in
the software used by the content provider. It is
used to create the DRM package according to the
OMA DRM standards before it is delivered to the
device, including content and associated access
keys.
In Japan, only files with SD protection for playback
will be accepted in the Media player and in some
European markets only DRM content can be used
for automated use/themes such as ringtones.
Personalization
The W950 can be personalised by the user in one
of the following ways:
• Update the User Interface using services, such
as, M-Service.
• Use PC-based utility application.