Patent ID: 8706085
Filing Date: 2014-04-22
Classification: H04L,H04W

Abstract:
1. A method for authenticating a machine type communication MTC device, comprising: receiving an attach request comprising a group identifier and sent by an MTC device to be authenticated, wherein the group identifier is a group identifier of an MTC group where the MTC device to be authenticated is located; determining whether a first group authentication vector bound to the group identifier exists locally, wherein the first group authentication vector is an authentication vector used for authenticating MTC devices in the MTC group; if the first group authentication vector bound to the group identifier exists, according to the first group authentication vector, authenticating the MTC device to be authenticated, and generating a system key for the MTC device to be authenticated; wherein each MTC device in the MTC group has a device characteristic, and the device characteristic is used to uniquely identify the MTC device in the MTC group; the attach request further comprises a second device characteristic used for identifying the MTC device to be authenticated; after the determining that the first group authentication vector bound to the group identifier exists locally, the method further comprises: determining whether the second device characteristic is the same as a locally stored first device characteristic, wherein the first device characteristic is a device characteristic bound to both the group identifier and the first group authentication vector; and if the second device characteristic is different from the locally stored first device characteristic, executing the step of according to the first group authentication vector, authenticating the MTC device to be authenticated, and generating the system key of the MTC device to be authenticated.