Authentication Server Function

E523090

5G core network function network authentication function

The Authentication Server Function is a 5G core network component responsible for authenticating subscribers and managing security credentials to enable secure access to mobile services.

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Statements (48)

Predicate	Object
instanceOf	5G core network function ⓘ network authentication function ⓘ
abbreviation	AUSF ⓘ
associatedWith	subscriber permanent identifier SUPI ⓘ subscription data stored in UDM ⓘ
communicatesWith	Access and Mobility Management Function ⓘ Network Exposure Function NERFINISHED ⓘ Policy Control Function NERFINISHED ⓘ Security Anchor Function ⓘ Unified Data Management ⓘ
definedInStandard	3GPP 5G specifications NERFINISHED ⓘ 3GPP TS 23.501 NERFINISHED ⓘ 3GPP TS 33.501 NERFINISHED ⓘ
domain	cellular network security ⓘ mobile telecommunications ⓘ
exposesService	Nausf_SoRProtection NERFINISHED ⓘ Nausf_UEAuthentication NERFINISHED ⓘ Nausf_UPUProtection NERFINISHED ⓘ
hasGoal	enable secure access to mobile services ⓘ protect subscriber identity and credentials ⓘ
implementedBy	5G core network vendors ⓘ
introducedIn	5G New Radio era ⓘ
operatesAt	control plane ⓘ
partOf	5G Core Network ⓘ 5G System NERFINISHED ⓘ
replacesOrExtends	authentication functions in 4G EPC ⓘ
responsibleFor	binding authentication to serving network ⓘ exposure of authentication services to other network functions ⓘ generation of authentication vectors ⓘ management of security credentials ⓘ selection of authentication method ⓘ subscriber authentication ⓘ support of 5G AKA ⓘ support of EAP-based authentication ⓘ support of primary authentication procedures ⓘ support of secondary authentication procedures ⓘ
securityProperty	contributes to confidentiality of subscriber credentials ⓘ contributes to integrity protection of signaling ⓘ ensures mutual authentication between UE and network ⓘ
supportsFeature	home-routed authentication ⓘ protection of steering-of-roaming information ⓘ protection of user plane integrity update information ⓘ roaming authentication ⓘ serving network authorization ⓘ subscription-based authentication policies ⓘ
usesProtocol	5G AKA ⓘ EAP ⓘ HTTP-based service-based interfaces ⓘ

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Network Repository Function → interactsWith → Authentication Server Function ⓘ

Access and Mobility Management Function → interfacesWith → Authentication Server Function ⓘ