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9. Application Development > 98. Sign Your COD Files

Sign Your COD Files

To distribute your application, you first must request a certificate from RIM.

When you develop applications using the BlackBerry Simulator, everything runs smoothly. But once you deploy them to an actual handheld device, it may fail with an error message. To give RIM more central control, each application developer whose code accesses protected areas of the API must obtain security keys and sign his code before it will run on an actual BlackBerry handheld. This prevents viruses and nefarious actions on the BlackBerry platform.

The registration process is quite easy and self-explanatory. To get the exact information required to obtain a certificate, go to http://www.blackberry.com/developers/na/java/tools/controlledAPIs.shtml. Upon approval, you should soon receive some .csi executable files. Save and double-click these files on your Windows computer, and an application will appear that walks you through the process of generating a security key pair. You will be prompted to make up a new password that is used when you sign your application.


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