Method for generating and managing a local area network
US7725720B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2004 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method for creating and managing a local area network including at least one device for reproducing an encrypted data flow and a device for transmitting and re-encrypting all or part of said encrypted data, which devices include security modules. The method includes the steps of connecting a so-called master security module in one of the devices connected to the local area network, causing the master security module to generate a network key, securely transmitting the network key to one or more so-called user security modules, decrypting the data encrypted by the transmission and re-encryption device, re-encrypting the data with said device by means of a local key, transmitting the re-encrypted data to the reproduction device, and holding the reproduction device to perform decryption using the user security module associated therewith and provided with means for locating the local key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.