Sony Ericsson P990i - Manual (Page 48)

White Paper P990i
48 January 2006
Preliminary version - P1F
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mobile environment and is a principal driver of
many open standard initiatives. This will ensure the
interoperability of mobile terminals in the DRM area
and also result in a strong, competitive DRM stand-
ard.
FWL – forward lock
P990i 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 con-
tent from being distributed from the device by the
user. It enables a secure means for the content pro-
vider to deliver/provide content which incurs a
charge. Forward lock content will normally be
received by P990i as part of an MMS message or
via HTTP download. P990i supports OMA Down-
load. More information is available at www.SonyEr-
icsson.com/developer.
CD – combined delivery
P990i supports OMA DRM combined delivery/for-
ward 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 to be used on
another device.
SD – separate delivery
P990i supports OMA DRM Separate delivery. Con-
tent and associated access keys are received as
separate DRM packages, either simultaneously or
at different points in time. This enables the distribu-
tion of content to other users and has the same
possibilities to control usage of the content exist as
with combined delivery/forward lock. Distribution
of the content to other users will require the recipi-
ent to obtain access keys from the rights issuer in
order to use the content.
Protection properties
Content protection according to the OMA DRM
standard gets special properties.
Content with Forward lock protection cannot be
further distributed: The user cannot send the con-
tent to other devices since the “Send to” option is
disabled for media protected with Forward lock.
All three types of received content packages can
be transferred to the Memory Stick™ thereby ena-
bling storage of large amounts of content.
OMA DRM forward lock/combined delivery pro-
tected content on a Memory Stick 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. Thus,
the Memory Stick is one way of distributing sepa-
rate delivery content to several users. 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 V1 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 P990 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.