Re: Authorization when calling a Servlet from a Midlet?

username & password is typically what is used.  (GMail MIDlet, for example.)

If you need a secure channel you can try https, or create your own with the bouncycastle tools.

IMEI might work, but it often isn't available in the wild.

I gather, however, that you're doing something for the corporate web.

Have you considered having your users authorize in a web browser before they obtain the MIDlet from your server?  The server can add the authorization codes to the MIDlet's JAD file before delivery.  After authorization, your server can send an SMS to the handset with a link to the preauthorized MIDlet in the body of the message.  When the user receives the SMS, they select the link to install the MIDlet.  (This works on many but not all handsets.)

--
Joe Bowbeer
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