METHOD FOR SENDING CERTIFICATE, METHOD FOR RECEIVING CERTIFICATE, CLOUD, TERMINAL DEVICE

摘要

In the present disclosure, a method for transmitting a certificate, a method for receiving a certificate, a cloud, and a terminal device have been provided, and are related to the field of certificate management technology, and can be applied to fields such as cloud computing, cloud services, and cloud platforms. A specific implementation method is: obtaining a root certificate of the first node; Generating a target sub-certificate based on the root certificate, wherein the target sub-certificate includes a first sub-certificate of a first function module of a first application related to the first node; The target sub-certificate is transmitted to a terminal device, and the target sub-certificate is for a first function module of the first application among the terminal devices to communicate with the target sub-certificate. By issuing a signature of the first sub-certificate of the first function module of the first application related to the first node through the cloud, the management capability of the first sub-certificate of the first function module in the terminal device is improved.