Section: 14.4.2.2 Nnssaaf_AIW_Authenticate service operation
Content: Service operation name: Nnssaaf_AIW_Authenticate Description: The NSSAAF provides Authentication and Authorization service to the consumer NF by relaying EAP or EAP-TTLS inner method messages towards a AAA Server and performing related protocol conversion as needed. Input, Required: 1) In EAP Authentication: a) In the initial authentication request: SUPI. b) In subsequent authentication requests: EAP message. 2) In case EAP-TTLS mechanisms are implemented: inner method container. Input, Optional: None Output, Required: 1) In EAP authentication: EAP message, authentication result and if success MSK and SUPI. 2) In case EAP-TTLS mechanisms are implemented: inner method container. Output, Optional: None