| 摘要 |
The disclosure discloses a key sharing method for a Machine Type Communication (MTC) server, wherein when establishing a safe connection and performs safe communications with a first MTC server via a Generic Bootstrapping Architecture (GBA) process, an MTC device may send a second MTC server a request message containing a bootstrapping identifier (B-TID) currently used by the MTC device and the first MTC server and a host identifier NAF-ID1 of the first MTC server; the second MTC server sends a Bootstrapping Server Function (BSF) an authentication request containing a host identifier NAF-ID2 of the second MTC server, the B-TID, and NAF-ID; after verifying the validity of NAF-ID2 and NAF-ID1, the BSF generates a session key KNAF according to the B-TID and the NAF-ID1, and sends the generated KNAF to the second MTC server. Accordingly, the disclosure further discloses a key sharing system for an MTC server. With the disclosure, the MTC device is enabled to perform safe communications simultaneously with a plurality of MTC servers, thereby enhancing the efficiency of network resources.
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