Communication method and apparatus

A method, comprising:

• obtaining first indication information, wherein the first indication information indicates a multicast key transmission procedure, the multicast key transmission procedure is a communication procedure that is supported by a network side and that is used to transmit a multicast key to a communication apparatus, and the multicast key is a security transmission key of a multicast session between the communication apparatus and a first content delivery network element;
• and
• obtaining service data from a core network based on a support case of the communication apparatus for the multicast key transmission procedure.

A method, comprising:

• determining first indication information, wherein the first indication information indicates a multicast key transmission procedure, the multicast key transmission procedure is a communication procedure that is supported by a network side and that is used to transmit a multicast key to a communication apparatus, and the multicast key is a security transmission key of a multicast session between the communication apparatus and a first content delivery network element;
• and
• sending the first indication information to the communication apparatus.

An apparatus, comprising at least one processor coupled to at least one memory storing instructions and configured to execute the instructions to cause the apparatus to perform:

• obtaining first indication information, wherein the first indication information indicates a multicast key transmission procedure, the multicast key transmission procedure is a communication procedure that is supported by a network side and that is used to transmit a multicast key to the communication apparatus, and the multicast key is a security transmission key of a multicast session between the communication apparatus and a first content delivery network element;
• and
• obtaining service data from a core network based on a support case of the communication apparatus for the multicast key transmission procedure.

An apparatus, comprising at least one processor coupled to at least one memory storing instructions and configured to execute the instructions to cause the apparatus to:

• determine first indication information, wherein the first indication information indicates a multicast key transmission procedure, the multicast key transmission procedure is a communication procedure that is supported by a network side and that is used to transmit a multicast key to a communication apparatus, and the multicast key is a security transmission key of a multicast session between the communication apparatus and a first content delivery network element;
• and
• send the first indication information to the communication apparatus.