| 摘要 |
<p>A method, apparatus, and system for sending and receiving the security policy of multicast sessions are provided. The method for sending the security policy of multicast sessions includes: after a Datagram Transport Layer Security (DTLS) session is set up between a sender and a receiver, receiving a security policy request sent from the receiver, constructing a security policy response according to the security policy, multiplexing the security policy response and Secure Real-Time Transport Protocol (SRTP) multicast session data, and sending the multiplexed data to the receiver. An in-band mode is adopted to complete security policy negotiation, which solves the issue that the key negotiation solution in the prior art cannot realize safe negotiation about the security policy of SRTP multicast sessions.</p> |
