The invention discloses an authentication method based on shared group key in machine type communication. It mainly solves the deficiency of the authentication mechanism based on MTC group which is not given in the existing standards. The authentication process is as follows: (1) generated by the home network HE shared group key GK, and will generate GK write USIM or is distributed as part of the MCIM to ME all equipment group; (2) the HE will send the GK generation based on the authentication data to the service network SN; (3) authentication data the SN and ME groups in mutual authentication; (4) when the change in group membership, HE broadcast key update notification message to all belong to the group of ME, and according to the steps of (1) implementation of group key update shared between HE and ME. The invention optimizes the signaling data service network and home network by authentication generated by reducing congestion on the link between them, has the advantages of safe and fast, suitable for fast access machine group machine type communication authentication.
【技术实现步骤摘要】
【技术保护点】
1.一种机器设备通信中基于共享群密钥的认证方法,包括如下步骤:(1)归属网络HE将共享群密钥GK分发给群中机器设备ME,该分发过程针对机器设备群的不同分为以下两种情况:1.1)由一组基于通用集成电路卡UICC的机器设备ME构成机器设备群,该设备群所在的HE生成GK,并在初始状态或者当群中成员发生改变时,将GK在通用用户标识模块USIM出厂前写入USIM中,各个ME通过插入USIM得到GK,完成HE对于GK的分发;1.2)由一组基于可信环境TRE的机器设备ME构成机器设备群,该设备群所在的HE生成GK,并在初始状态或者当群中成员发生改变时,将GK作为机器通信识别模块MCIM的 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:李晖,曹进,张跃宇,赖成喆,
申请(专利权)人:西安电子科技大学,
类型:发明
国别省市:87
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