Bonus Article On The Federation Concept From The ISC2 CCSP
In this article, it will be assumed that the reader knows PKI, mutual TLS, Oauth2, and 5G Core procedures.
First and foremost, let’s provide a brief explanation of the 5G core. The 5G Core is a service-based network composed of producer network functions (service producers), consumer network functions (service consumers), and an authorization server known as the Network Repository Function (NRF). The consumer network functions utilize services provided by the producer network functions, with authorization from the NRF or, in some cases, through static authorization. However, static authorization does not scale effectively as the network expands. However, this is a topic for another article.
How does the 5G core use the concept of Federations?
Let’s explain briefly what is a Federation:
In the context of identity and access management (IAM), federation refers to the process of creating a trust relationship between two parties to authenticate users and share the necessary information for authorizing their access to resources. —…













