Method for ensuring media stream security in IP multimedia sub-system
US9537837B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Oct 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/106
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for ensuring media stream security in an IP Multimedia Subsystem network is disclosed. The method includes: assigning an end-to-end media stream security key for a calling User Equipment (UE) or a called UE, by a network device with which the calling UE or the called UE is registered, respectively, and transmitting the media stream security key to a network device with which the opposite end is registered; encrypting the end-to-end media stream security key using a session key shared with the calling UE or the called UE respectively, and transmitting the encrypted end-to-end media stream security key to the calling UE or the called UE, respectively, via a session message; encrypting or decrypting a media stream, by the calling UE or the called UE, respectively, using the end-to-end media stream security key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.