Secure communication method and communication apparatus

A secure communication method, comprising:

• receiving, by a session management function network element, first security capability indication information from a terminal device, wherein the first security capability indication information indicates that the terminal device supports to establish a secure connection between the terminal device and a server;
• determining, by the session management function network element, that user plane security protection is enabled for a session of the terminal device;
• and
• determining, by the session management function network element, a first server that does not support to establish the secure connection or a first server that supports not to activate the secure connection, wherein the session is used for transmission of data between the terminal device and the first server;
• and
• sending, by the session management function network element, information about the first server to the terminal device, to establish a connection between the terminal device and the first server.

A secure communication method, comprising:

• determining, by a session management function network element, that a terminal device does not support to establish a secure connection between the terminal device and a server;
• setting, by the session management function network element, a user plane security policy of a session of the terminal device to enabling security protection, wherein the session is used for transmission of data between the terminal device and a first server;
• and
• sending, by the session management function network element, information about the first server to the terminal device, to establish a connection between the terminal device and the first server.