公开(公告)号：US20150244532A1

公开(公告)日：2015-08-27

申请号：US14707484

申请日：2015-05-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyu Bi ,  Jing Chen ,  Yixian Xu ,  Chunshan Xiong

IPC: H04L9/32 ,  H04L9/30

CPC classification number: H04L9/3263 ,  H04L9/3066 ,  H04L9/3247 ,  H04L9/3268 ,  H04L63/0823 ,  H04L63/126 ,  H04W4/90 ,  H04W12/10

Abstract: Embodiments of the present invention provide a method and a terminal for message verification, which can enhance timeliness of event message verification. The method includes: receiving an event message sent by a cell broadcast entity; obtaining a public key of a CA according to pre-configured information for determining the public key of the CA and information for determining the public key of the CA and obtained from a network side, or according to information of the CA obtained from the network side; then, obtaining a public key of the cell broadcast entity according to the obtained public key of the CA and an implicit certificate of the cell broadcast entity; verifying a signature of the cell broadcast entity over the event message according to the public key of the cell broadcast entity; and finally, determining legitimacy of the event message according to the verification result.

Abstract translation: 本发明的实施例提供了一种用于消息验证的方法和终端，其可以提高事件消息验证的及时性。 该方法包括：接收由小区广播实体发送的事件消息; 根据用于确定CA的公开密钥的预先配置的信息和从网络侧获得的用于确定CA的公开密钥的信息，或者根据从网络侧获得的CA的信息，获得CA的公开密钥 ; 然后根据获得的CA公钥和小区广播实体的隐含证书获得小区广播实体的公开密钥; 根据小区广播实体的公开密钥对事件消息中的小区广播实体的签名进行验证; 最后，根据验证结果确定事件消息的合法性。

公开(公告)号：US20140233736A1

公开(公告)日：2014-08-21

申请号：US14264587

申请日：2014-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lijia ZHANG ,  Jing Chen ,  Yixian Xu

IPC: H04W12/04

CPC classification number: H04W12/04 ,  H04L63/062 ,  H04L63/065 ,  H04W4/08 ,  H04W4/70 ,  H04W88/08

Abstract: Embodiments of the present invention provide a method and a related device for generating a group key. The method includes: obtaining a group ID of a group where a machine type communication MTC device is located; obtaining a group communication root key corresponding to the group ID; generating a group key corresponding to the group ID according to the group communication root key; and sending the group key encrypted by using an access stratum key of the MTC device to the MTC device, so that the MTC device obtains the group key through decryption according to the access stratum key of the MTC device. According to the foregoing technical solutions, a base station may allocate, to an MTC device, a group key corresponding to a group where the MTC device is located.

Abstract translation: 本发明的实施例提供了一种用于生成组密钥的方法和相关设备。 该方法包括：获取机器型通信MTC设备所在的组的组ID; 获取与组ID相对应的组通信根密钥; 根据组通信根密钥生成与组ID相对应的组密钥; 以及通过使用MTC设备的接入层密钥加密的组密钥发送给MTC设备，使得MTC设备根据MTC设备的接入层密钥通过解密获得组密钥。 根据上述技术方案，基站可以向MTC设备分配与MTC设备所在的组对应的组密钥。

公开(公告)号：US20130035067A1

公开(公告)日：2013-02-07

申请号：US13649540

申请日：2012-10-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lijia ZHANG ,  Yixian Xu ,  Yingxin Huang ,  Xiaohan Liu ,  Meriau Laurence

IPC: H04W12/06

CPC classification number: H04L63/08 ,  H04L63/0884 ,  H04L2463/061 ,  H04W4/08 ,  H04W4/70 ,  H04W8/186 ,  H04W12/04 ,  H04W12/06

Abstract: Embodiments of the present invention disclose a method and an apparatus for authenticating a communication device, where the method includes: receiving an attach request including a group identifier and sent by an MTC device to be authenticated, where 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, where the first group authentication vector is an authentication vector used for authenticating MTC devices in the MTC group; and if existing, according to the first group authentication vector, authenticating the MTC device to be authenticated, and generating a system key of the MTC device to be authenticated. The technical solutions provided in the present invention can be applied to the technical field of authenticating the MTC device.

Abstract translation: 本发明的实施例公开了一种用于认证通信设备的方法和装置，其中，所述方法包括：接收包括组标识符的附加请求，并由要被认证的MTC设备发送，其中所述组标识符是组识别符 要认证的MTC设备所在的MTC组; 确定是否本地存在绑定到组标识符的第一组认证向量，其中第一组认证向量是用于认证MTC组中的MTC设备的认证向量; 如果存在，根据第一组认证向量，认证要认证的MTC设备，并生成待认证的MTC设备的系统密钥。 本发明提供的技术方案可以应用于认证MTC设备的技术领域。