Motorola MC909X - Locking Down Mobile Computer Security

8 - 2 MC909X Integrator Guide
“trusted” mode. This means that only applications signed with a certificate from the Privileged Execution Trust
Certificate Store can run.
To support the broadest number of deployments, third-party software developers should perform the following
when releasing software for a Windows Mobile 5.0 devices:
• Sign all their EXEs & DLLs with their private key
• Provide the corresponding public certificate to end-users so that it can be installed into Privileged Execution
Trust Certificate Store.
If the software is installed via a .CAB file, developer should also:
• Sign the .CAB file with their private key
• Provide the corresponding public certificate to end-users so that it can be installed into SPC Certificate Store.
Locking Down a Mobile Computer
Like most configuration options in Windows Mobile 5.0, security settings are set via XML provisioning. For
example, to enforce the “trusted” model and only allow applications signed with a privileged certificate to run, use
the following provisioning document:
<wap-provisioningdoc>
<characteristic type=“SecurityPolicy”>
<!-- Disallow unsigned apps -->
<parm name=“4102” value=“0”/>
<!-- No Prompt -->
<parm name=“4122” value=“1”/>
</characteristic>
</wap-provisioningdoc>
For more information on various security options, refer to the Security Policy Settings topic in the latest Windows
Mobile documentation.