Security and credibility verification method and device for virtual machine

The invention provides a security and credibility verification method and device for a virtual machine, which are used for ensuring communication security in a virtual scene. The method comprises: when a VM of a UE needs to establish an NAS secure connection with a core network, an AUSF receives a UE authentication request message from an SEAF, the UE authentication request message being used for requesting to perform trusted verification on the VM, and the UE authentication request message carrying an EAP-AKA'authentication response of the VM; the AUSF performs credibility verification on the EAP-AKA'authentication response of the VM, if the credibility verification of the VM is passed, the AUSF sends a UE authentication response message to the SEAF, and the UE authentication response message is used for indicating that the VM is allowed to establish an NAS secure connection with the core network. 本申请提供一种虚拟机的安全可信验证方法及装置，用以保证虚拟化场景下的通信安全。该方法包括：在UE的VM要建立与核心网的NAS安全连接时，AUSF接收来自SEAF的UE认证请求消息，其中，UE认证请求消息用以请求对VM进行可信