name: CCA
full_form: Client Credential Assertion
context: CCA currently does not have any information regarding the service request for which the CCA is sent. In this solution the CCA can also be enhanced to include a service request info to further decrease the attack surface. Thus, it is proposed to couple the CCA with the service request and/or the access token request along with which the CCA is sent. For example, a new parameter 'serviceRequestInfo' can be added in the CCA which contains the request info and/or the scope information for which the access token is generated. When the NRF/NFp receives the request from a SCP, they compare the CCA 'serviceRequestInfo' parameter against the request which they have received. In case of successful verification, the response is sent.
description: A critical network attribute for operation, specifically a new parameter proposed to be added in the Client Credential Assertion (CCA) to contain service request information and/or scope information for which an access token is generated.
explanation: The context explicitly mentions 'serviceRequestInfo' as a new parameter to be included in the CCA, highlighting its role as a critical network attribute for operation. This justifies classifying it as a Parameter.
section_title: 6.23.2.2	Including service request information into the CCA
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biotag_Description: O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O