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Android
2012.05.24 11:14
How to create OMA DRM v1.0 content
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The easiest way to create OMA DRM v1.0 content is by using Nokia Mobile Internet Toolkit, a standalone tool from Nokia Developer. This article will show how to protect a JPEG image into a protected OMA DRM v1.0 content using NMIT version 4.1.
ToolsThe following tools are needed to run the demonstration:
OMA DRM v1.0 Forward-lockOMA DRM v1.0 Forward-lock is the simplest protection method of OMA DRM v1.0. The content is locked to a certain device. It cannot be forwarded to other devices.
Creating OMA DRM v1.0 Forward-lock contentFollow the instructions below to create OMA DRM v1.0 Forward Lock:
Pushing OMA DRM v1.0 Forward-lock content to emulator
Setting up Web server to support OMA DRM v1.0Before a Web server can be used as an OMA DRM v1.0 content provider, there are some MIME types that have to be set. It is needed so that the client knows the MIME type of the content it is downloading. For Apache httpd, add the following lines to the .htaccess file: AddType application/vnd.oma.drm.message .dm
Downloading OMA DRM v1.0 Forward-lock content to device
Nokia Delivery ServerAs mentioned above, the content that is stored on the Web server is actually not protected. It will be protected on the device on-the-fly. It is definitely not a secure way of delivering real contents. As an example, a hacker may download the content via PC and then strip off the OMA DRM v1.0 container. He will then get the original unprotected content. Nokia has developed a server, called Nokia Delivery Server (DLS), to "protect" the content. Furthermore, DLS can be integrated into billing systems.
Creating OMA DRM v1.0 Combined DeliveryOMA DRM v1.0 Combined Delivery means the content is delivered to the device together with the corresponding rights object. The media object can be used depending on the usage rights that are specified in the rights object.
Creating OMA DRM v1.0 Combined Delivery content
Pushing OMA DRM v1.0 Combined Delivery content to emulatorPushing OMA DRM v1.0 Combined Delivery content can be done in the same way as OMA DRM v1.0 Forward Lock. Launch the emulator from SDK Panel and then click Show Message button from NMIT. Additionally, the rights can be viewed from Activation Keys application. Normally this application is located in the Tools folder. However, different devices may have different folder. On the S60 3rd emulator, it is located under Configurations folder. The picture below shows how information about rights viewed on the Activation Keys application. Internal linksExternal linksDreamy의 코드 스크랩내가 모으고 내가 보는
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