公开(公告)号：US20150236851A1

公开(公告)日：2015-08-20

申请号：US14706432

申请日：2015-05-07

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L9/08 ,  H04L9/30

CPC classification number: H04L9/0825 ,  H04L9/0891 ,  H04L9/30 ,  H04L9/3268 ,  H04L63/0823 ,  H04L2209/24 ,  H04L2209/64 ,  H04L2209/80 ,  H04W4/90 ,  H04W12/04

Abstract: A method and an apparatus for updating a public key, a UE and a CA are disclosed. The method includes: receiving a first message including CA public key information, where the CA public key information includes a CA public key or CA public key acquiring information; and updating a local CA public key of a UE according to the CA public key or to the CA public key acquiring information. The present invention can realize update of the CA public key in the UE.

Abstract translation: 公开了一种用于更新公钥，UE和CA的方法和装置。 该方法包括：接收包括CA公开密钥信息的第一消息，其中CA公钥信息包括CA公钥或CA公钥获取信息; 以及根据所述CA公钥更新所述UE的本地CA公开密钥或所述CA公钥获取信息。 本发明可以实现UE中的CA公钥的更新。

公开(公告)号：US20220150062A1

公开(公告)日：2022-05-12

申请号：US17583013

申请日：2022-01-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Aiqin Zhang ,  Jing Chen ,  Xiaoyu Bi

IPC: H04L9/08 ,  H04W12/041

Abstract: Method, device, and system for deriving keys are provided in the field of mobile communications technologies. The method for deriving keys may be used, for example, in a handover process of a User Equipment (UE) from an Evolved Universal Terrestrial Radio Access Network (EUTRAN) to a Universal Terrestrial Radio Access Network (UTRAN). If a failure occurred in a first handover, the method ensures that the key derived by a source Mobility Management Entity (MME) for a second handover process of the UE is different from the key derived for the first handover process of the UE. This is done by changing input parameters used in the key derivation, so as to prevent the situation in the prior art that once the key used on one Radio Network Controller (RNC) is obtained, the keys on other RNCs can be derived accordingly, thereby enhancing the network security.

公开(公告)号：US10218513B2

公开(公告)日：2019-02-26

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 ,  H04W12/10 ,  H04L9/30 ,  H04L29/06 ,  H04W4/90

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.

公开(公告)号：US12219055B2

公开(公告)日：2025-02-04

申请号：US17583013

申请日：2022-01-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Aiqin Zhang ,  Jing Chen ,  Xiaoyu Bi

IPC: H04L9/08 ,  H04L9/40 ,  H04W12/041 ,  H04W36/00 ,  H04W88/14

Abstract: Method, device, and system for deriving keys are provided in the field of mobile communications technologies. The method for deriving keys may be used, for example, in a handover process of a User Equipment (UE) from an Evolved Universal Terrestrial Radio Access Network (EUTRAN) to a Universal Terrestrial Radio Access Network (UTRAN). If a failure occurred in a first handover, the method ensures that the key derived by a source Mobility Management Entity (MME) for a second handover process of the UE is different from the key derived for the first handover process of the UE. This is done by changing input parameters used in the key derivation, so as to prevent the situation in the prior art that once the key used on one Radio Network Controller (RNC) is obtained, the keys on other RNCs can be derived accordingly, thereby enhancing the network security.

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。