Information for Ontology based access controls..

I want to develop an Ontology based access control model. For example there
are two devices A and B.  Device A wants to access the data of device B.
For this, Device A requested for the uniquely identified token to
authorization manager. Suppose the Device B already defined the access
privileges of device A.  After successful authentication, the authorization
manager checks the already defined token of Device A and match and provides
a uniquely identified token to the Device A. Now, Device A using that token
to access the data of Device B. Here, the authorization manager keeps that
token information with relevant access privileges in the form of ontology.
My question is, is it possible to implement such token generation in
ontology? If is it possible then how? Actually, I want that our ontology
automatically generates uniquely identified token for each device.