Patent · US Active

Generating a traffic encryption key

US8259936B2 · kind B2 · utility

16Cited by

5References

15Claims

0Family size

Assignee

Intel Mobile Communications GmbH · DE

Inventors

Michael Benkert · Holle, DE
Achim Luft · Braunschweig, DE

Key dates

Filing date	Feb 5, 2008
Grant date	Sep 4, 2012
Priority date	—
Expiry date	Jul 4, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/26613
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Apparatus and method for generating a traffic encryption key includes generating a traffic encryption key for encrypting data transmitted as part of a service, the traffic encryption key having a validity equal to a traffic encryption key validity time period; checking whether a period for the service is longer than the traffic encryption key validity time period; and if the period of the service is longer than the traffic encryption key validity time period, ascertaining a residual period which indicates by what period the service is longer than the traffic encryption key validity time period of the traffic encryption key; generating a residual traffic encryption key which is used for encrypting data transmitted as part of a service; ascertaining a residual traffic encryption key validity time period which indicates for how long the residual traffic encryption key is valid; and associating the residual traffic encryption key validity time period with the residual traffic encryption key.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.