Feature Description

This feature describes the authorization controls that are required for implementing all the network functions. The OAuth2 client authorization to NRF supports requesting AccessToken to NRF and validating AccessToken in the incoming requests.

All the network functions in the 5G core interact with each other using REST APIs. All these APIs are accessed without any authorization. These interactions between multiple network functions are processed without any access control mechanism. As per 3GPP standards, OAuth2 standards must be implemented for all the network functions to secure the access of REST APIs between these network functions.

As a mandatory security measure and as an upgraded requirement to protect the network function accessibility, the REST APIs are now accessed with an enhanced authorization mechanism. using OAuth2 standards.