Method and system for secure transmission of small data of MTC device group

摘要

Disclosed is a method for secure transmission of small data of a machine type communication (MTC) device group, comprising a process wherein an MTC device and an MTC-Interworking Function (MTC-IWF) generate a shared key KIWF on the basis of a GBA procedure, the MTC device and a bootstrapping server (BSF) performing AKA authentication: a home subscriber server (HSS) determines whether the MTC device belongs to the MTC device group and whether said device has small data transmission and reception capabilities; if said device belongs to said group and has said capabilities, an AKA authentication vector generated on the basis of the MTC device group key is sent to said BSF; the BSF carries out AKA authentication with the MTC device on the basis of the received AKA authentication vector. Also disclosed is a system for secure transmission of small data of an MTC device group.

主权项

1. A secure Small Data Transmission (SDT) method for a Machine Type Communication (MTC) device group, comprising a process of generating, by an MTC device and an MTC Interworking Function (MTC-IWF), a shared key KIWF on the basis of a Generic Bootstrapping Architecture (GBA) key agreement process in which Authentication and Key Agreement (AKA) authentication between the MTC device and a Bootstrapping Server Function (BSF) comprises:
determining, by a Home Subscriber Server (HSS), whether the MTC device belongs to the MTC device group and has a small data sending and receiving capability or not, and if YES, sending an AKA authentication vector generated on the basis of an MTC device group key to the BSF; and performing, by the BSF, AKA authentication with the MTC device according to the received AKA authentication vector.