Securing feature activation in a telecommunication system
US6513121B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Periodically sending by a telecommunication controlled application an encrypted message to a licensed server to request permission to run and to obtain a list of permitted features. The license server application is executing on the same processor as the controlled application. Also resident on the same system is a license file which contains a list of applications that are permitted to run, the version number of the permitted applications and a list of permitted features. The license server is responsive to the encrypted message from the controlled application to read and decrypt the license file, read the serial number of the processor controlling the telecommunications system, compare the serial number obtained from the processor with the serial number stored in the license file. If there is a mis-match, no license is granted to the control applications and it will not be allowed to run. If the serial numbers match, then a comparison is made between the version number received from the application and the corresponding version number associated with the application in the license file. If the version number mismatches, an encrypted message is sent to the application denying it p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.