I don't thinlk it is possible to check the Certificate for the Template that was used to create it.
Add on:
When the user authenticates with either PEAP or EAP-FAST, against AD external ID store then ACS performs an additional action. It searches the cache for the users Calling-Station-Id.
If it is found then Was-Machine-Authenticated attribute is set to true on the session context, otherwise set to false.
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For the above to function correctly, the user authentication request should contain the Calling-Station-Id
. In case it does not, the Was-Machine-Authenticated attribute shall be set to false.
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The administrator can add rules to authorization policies that are based on AD GM attribute and on Machine authentication required attribute. Any rule that contains these two attributes will only apply if the following conditions are met:
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MAR feature is enabled
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Machine authentication in the authenticating protocol settings is enabled
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External ID store is AD