GPRS system key enforcement method, SGSN device, UE, HLR / HSS, and GPRS system

摘要

The present application provides a GPRS system key enforcement method, an SGSN device, a UE, an HLR / HSS, and a GPRS system, wherein the method comprises: receiving, by the SGSN, a request message transmitted by the UE; Obtaining, by the SGSN, an authentication vector from the HLR / HSS, the authentication vector comprising a first encryption key and a first integrity key; If the SGSN determines that the UE is a first type UE, selecting an encryption algorithm and an integrity algorithm for the UE, and transmitting the selected encryption algorithm and the selected integrity algorithm to the UE; And obtaining, by the SGSN, a second encryption key and a second integrity key according to the first encryption key and the first integrity key. In embodiments of the present application, using the encryption algorithm and the integrity algorithm selected by the SGSN, the second encryption key, and the second integrity key to enhance the security of communication of the first type of UE in the GPRS network Encryption protection and integrity protection may be performed on communication messages between the SGSN and the UE.