Huawei Technologies Co., Limited

Other

Rong Wu

Hua Li

Lu Gan

Shuaishuai Tan

He Li

Li Hu

Yizhuang Wu

Longhua Guo

Ao Lei

Feng Liu

Zhongding Lei

Haiguang Wang

Zhenglei Huang

Chengdong He

Hao Hu

Lichun Li

Huiming Wang

This application provides a communication method and apparatus. The method includes: a terminal sending first network information of a second network to a first network, where the first network information includes first indication information of the second network, and the first indication information indicating that the terminal requests to access the second network. The terminal performs onboarding delivery authentication of the second network through the first network. After onboarding delivery authentication of the second network succeeds, the terminal receives configuration information of the first network through the first network, and obtains a credential of the second network through the first network from an online sign-up server in the second network.

Communication method and apparatus

A method for protecting a truncated parameter includes that a mobility management network element determines whether a terminal that accesses a network meets a preset condition, where the preset condition includes that the terminal uses a control plane cellular Internet of things (CIoT) 5th generation system (5GS) optimization function. The mobility management network element sends, to the terminal when the terminal meets the preset condition, a downlink non-access stratum (NAS) message on which NAS security protection is performed using a NAS security context, where the downlink NAS message includes a truncated parameter.

Method for protecting truncated parameter and apparatus

This application provides security activation methods and communication apparatuses. In an example method, a first access network device in a first communication standard requests a second access network device in a second communication standard to allocate a resource for dual connectivity of a terminal device, and sends, to the second access network device, a user plane security policy. The first access network device further receives identification information of a bearer and a security activation status from the second access network device and sends the identification information of the bearer and the security activation status to the terminal device.

Security activation method and communication apparatus

Embodiments of this application provide a communication method, apparatus, and system, to improve security of a vehicle-to-everything (V2X) PC5 establishment procedure. In the method, a first terminal device obtains a first security protection method, where the first security protection method is a security protection method determined in a discovery procedure between the first terminal device and a second terminal device. Also in the method, the first terminal device determines a second security protection method according to the first security protection method, where the second security protection method is a security protection method for a PC5 connection between the first terminal device and the second terminal device. For example, a security level of the second security protection method is higher than a security level of the first security protection method. The communication method is applicable to the V2X communication field.

Communication method, apparatus, and system

An authentication management function AUSF receives an authentication request message from an access and mobility management function AMF, where the authentication request message carries a subscription concealed identifier SUCI. The AUSF sends an authentication vector get request message to a unified data management UDM function, where the authentication vector get request message carries the SUCI. The AUSF receives an authentication vector get response message from the UDM, where the authentication vector get response message includes authentication and key management for application AKMA indication information. The AUSF generates, based on the AKMA indication information, an authentication and key management for application-key identifier based on a routing indicator RID in the SUCI.

Key identifier generation method and related apparatus

Embodiments of the present disclosure provide a key management method and a communication apparatus, and relate to the field of communication technologies, to securely transmit multicast service data, and prevent an unauthorized terminal device from obtaining the multicast service data. The method includes: A terminal device obtains a target key, where the target key includes at least one of a target multimedia broadcast/multicast service service key (MSK), a first sub-key corresponding to the target MSK, or a second sub-key corresponding to the target MSK, the first sub-key is for confidentiality protection calculation, and the second sub-key is for integrity protection calculation. The terminal device receives target data, on which security protection is performed, from a multicast user-plane processing network element. Then, the terminal device processes the target data using the target key.

Key management method and communication apparatus

A communication method and apparatus are provided, to implement automatic onboarding when no network-side information is configured on a terminal device. The method includes: The terminal device obtains auxiliary authentication information that includes identification information of one or more networks; determines access information of a first network based on first temporary authentication information and identification information of the first network, where the first network is any one of the one or more networks; triggers mutual temporary authentication with the first network based on the access information of the first network; and receives configuration information of the first network from the first network when the mutual temporary authentication succeeds. The terminal device may trigger the mutual temporary authentication with the first network based on the access information of the first network.

Communication method, apparatus, and system for automatic onboarding of a terminal device

Embodiments of this application relate to the field of communication technologies, and provide a data transmission method and an apparatus, to ensure security of radio capability information of a terminal in a transmission process. The method includes: A terminal performs NAS security protection on radio capability information based on a NAS security context before establishing an AS security context; then the terminal sends the NAS-security-protected radio capability information to a mobility management network element; and after receiving the NAS-security-protected radio capability information, the mobility management network element performs security deprotection on the NAS-security-protected radio capability information, to obtain and store the radio capability information of the terminal. In this way, in a scenario in which an access network device requires the radio capability information of the terminal, the mobility management network element may send the radio capability information to the access network device.

Data transmission method and apparatus

A communication method, apparatus, and system are provided, to resolve problems in a conventional technology that an AKMA authentication procedure is complex and signaling overheads are large. Principles of the method are as follows: In a registration procedure of a terminal device, AKMA authentication is implicitly indicated based on primary authentication. For example, if primary authentication succeeds, it may be considered that AKMA authentication also succeeds. In addition, an AKMA temporary identifier is allocated to the terminal device after AKMA authentication succeeds. According to the method, apparatus, and system in this application, no additional AKMA authentication is required. This simplifies a procedure and reduces signaling overheads.

This application provides a key management method, a device, and a system. The method includes: A terminal device sends a first application session establishment request message to a first application function network element, where the establishment request message carries identification information of a first key, and the first key is an authentication and key management for applications AKMA key. The terminal device receives a first authentication request message in a procedure of the re-authentication. The terminal device sends a response message for the first authentication request message in the procedure of the re-authentication. The terminal device receives a response message for the establishment request message. The terminal device derives a communication key between the terminal device and the first application function network element by using the first key.

Key management method, device, and system

A method for determining a user plane security algorithm, a system, and an apparatus. The method may include: a second device selects a non-null user plane confidentiality protection algorithm based on a security capability of a first device and a security capability of the second device in a case in which user plane confidentiality protection between the second device and the first device is enabled and control plane confidentiality protection between the second device and the first device is not enabled. The second device sends a first message to the first device. The first message includes first algorithm indication information indicating the user plane confidentiality protection algorithm. Therefore, the first device can obtain the non-null user plane confidentiality protection algorithm. Embodiments can be adopted to determine an effective user plane confidentiality protection algorithm, for confidentiality protecting user plane data.

Method, system, and apparatus for determining user plane security algorithm

This application provides a communication system, method, and apparatus. The system is applied to implement authentication and key management for applications (AKMA) service-based data transmission between a terminal device and an application function network element. The system includes an AKMA anchor function network element and a network exposure function network element. The network exposure function network element obtains first identification information from a unified data management network element, where the first identification information is used to determine an authentication server function network element corresponding to the terminal device, and sends the first identification information to the AKMA anchor function network element. The AKMA anchor function network element obtains, from the unified data management network element based on the first identification information, identification information of the authentication server function network element corresponding to the terminal device.

Communication system, method, and apparatus

Coffee pod refill kit

A terminal device obtains first slice selection assistance information, where the first slice selection assistance information is obtained by encrypting second slice selection assistance information, and the second slice selection assistance information is selection assistance information of a slice to which the terminal device is allowed to access. The terminal device sends a registration request message to an access network device, where the registration request message includes the first slice selection assistance information.

Communications method and apparatus

A network function service invocation method includes sending, by a first network function network element, a first request message to an authorization network element, wherein the first request message is used to request permission to invoke a first network function service provided by a second network function network element, performing, by the authorization network element, identity authentication on the first network function network element, generating, by the authorization network element, a token when determining that the identity authentication succeeds, wherein the token is used to indicate that the first network function network element has the permission to invoke the first network function service of the second network function network element, and sending, by the authorization network element, a token to the first network function network element.

Growing community of inventors

Shenzhen, China

Rong Wu