| http://www.w3.org/ns/prov#value | - The method of claim 4 comprising receiving the response including the at least a portion of the selected metered data encrypted according to a symmetric pass key to result in (passkey(metereddata)), and further comprising the client obtaining the pass key and applying the obtained pass key to (passkey(metereddata)) from the response to obtain the at least a portion of the metered data.
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