5G • Core Network
N12 Interface
N12 Reference Point (AMF to AUSF)
Interface between AMF and AUSF executing subscriber primary authentication.
Technical Explanation
Realized via the Nausf service-based interface, N12 enables the AMF to request 5G-AKA authentication vectors, pass the user's authentication response (RES*) for verification, and receive derived security anchor keys (K_SEAF).
Key Functions
- Connects AMF to AUSF for primary subscriber authentication
- Executes 5G-AKA challenge-response verification
- Realized via Nausf_UEAuthentication service-based interface
Specifications
3GPP TS 23.501, TS 29.509
Interfaces
N12Nausf
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