Abstract: Disclosed in the present application are a device authentication method and an electronic device. The device authentication method includes: establishing a first connection based on a TLS protocol between the electronic device and a first server; sending a first request to the first server on the basis of the first connection, the first request being used to request for identity authentication of the electronic device and generated on the basis of first information which represents a digital certificate of the electronic device; and on the basis of the first connection, receiving first response information about the first request, the first response information being sent by the first server and carrying a result of the identity authentication of the electronic device, and the identity authentication being performed by the first server.

Abstract: A display control method includes acquiring an instruction and displaying at least one of an application or a control on an entire display area of a display or a partial display area of the display based on the instruction. The entire display area of the display includes a non-regular display area.

Abstract: A method includes acquiring a message including content information and having a designated property that includes an input parameter associated with the content information, determining a message box that bears the content information based on a volume of the content information and the input parameter, and displaying the message box.