Method for generating and managing a local area network

  • US 20060161969A1
  • Filed: 07/06/2004
  • Published: 07/20/2006
  • Est. Priority Date: 07/14/2003
  • Status: Active Grant
First Claim
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1. Method for creating and managing a local network, this network comprising at least one restitution device for an encrypted data stream and a diffusion and re-encrypting device for all or part of said encrypted data, said devices comprising security modules, the method comprising the following steps:

  • connecting a master security module in one of the devices connected to the local network, establishing a network key by the master security module, securely transmitting this network key to one or several user security modules, decrypting encrypted data by the diffusion and re-encrypting device, re-encrypting of the data by said device with a local key, transmitting the re-encrypted data to the restitution device, decrypting by said restitution device thanks to the associated user security module, which disposes of means to find the local key.

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