Systems and methods for utilizing IMS data security mechanisms in a circuit switched network

摘要

Aspects of the present invention provide a mechanism to utilize IMS media security mechanisms in a CS network and, thereby, provide end-to-end media security in the case where the media traffic travels across both a CS network and a PS network.

主权项

1. A method performed by a network gateway, comprising:
establishing a circuit switched connection with a mobile terminal; receiving from the mobile terminal via the circuit switched connection a frame including a payload comprising encrypted encoded data intended for a remote mobile terminal and an encryption parameter that is required by the remote communicate device to decrypt the encrypted encoded data; creating a protocol data unit that includes the encoded data and the encryption parameter; and transmitting via a packet switched network the protocol data unit so that it will be received by the remote mobile terminal, wherein the protocol data unit is a secure real-time transport protocol (SRTP) protocol data unit that includes a header portion and a payload portion, and the encoded data is placed in the payload portion and the encryption parameter is placed in the header portion.