7 Secure communication
29.2513GPPGw and Gwn reference point for sponsored data connectivityRelease 17TS
Either the NDS/IP network layer security defined in 3GPP TS 33.210 [8] or HTTP over TLS as defined in IETF RFC 2818 [9] should be used to secure communication over the REST based Gw and Gwn interfaces.
Annex A (normative):
JSON Schema