1. 1] 3GPP. 2018. Study on authentication and key management for applications based on 3GPP credential in 5G (Work Item Description). https://portal.3gpp. org/ngppapp/CreateTdoc.aspx?mode=view&contributionUid=SP-180443.
2. 3GPP. 2018. TS 23.501 System Architecture for the 5G System. https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails. aspx'specificationId=3144.
3. 3GPP. 2018. TS 33.102 V 15.1.0 Security architecture (Release 14). https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails. aspx'specificationId=2262.
4. 3GPP. 2018. TS 33.220 V15.4.0 Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA). https://portal.3gpp.org/ desktopmodules/Specifications/SpecificationDetails.aspx'specificationId=2280.
5. 3GPP. 2018. TS 33.223 V15.0.0 Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA) Push function. https://portal.3gpp.org/ desktopmodules/Specifications/SpecificationDetails.aspx'specificationId=2283.