Traffic encryption key management for machine to machine multicast group
US9161216B2 · kind B2 · utility
1Cited by
2References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 8, 2011 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Feb 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for decrypting multicast data by a mobile station in a wireless communication system is described. The method includes receiving an identifier of a group from a base station, receiving parameters for generating a group traffic key from the base station, wherein the parameters include an authentication key for the group, a group security seed and a counter, performing a key derivation function to generate the group traffic key based on the identifier and the parameters and decrypting multicast data using the group traffic key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.