Patent ID: 9167422
Filing Date: 2015-10-20
Classification: G06Q,H04L,H04W

Abstract:
1. A system serving first User Equipment (UE), the system for ensuring media stream security between the first UE and second UE within a multimedia network, the system including: a first network device serving first UE, the first network device being configured to: the second network device, the second network device being configured to: wherein the first UE encrypts or decrypts a media stream using the end-to-end media stream security key, and wherein the second UE also encrypts or decrypts the media stream using the end-to-end media stream security key, the end-to-end media stream security key having been received by the second UE based on the third network device having transmitted the end-to-end media stream security key to a fourth network device serving the second UE, the fourth network device having encrypted the end-to-end media stream security key using a second session key shared between the fourth network device and the second UE, resulting in a second encrypted end-to-end media stream security key, and the fourth network device having transmitted the second encrypted end-to-end media stream security key to the second UE via a second session message.