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Local digital network, methods for installing new devices and data broadcast and reception methods in such a network

  • US 20050278524A1
  • Filed: 08/23/2002
  • Published: 12/15/2005
  • Est. Priority Date: 08/24/2001
  • Status: Active Grant
First Claim
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1. Local digital network comprising:

  • at least one source device intended to broadcast data over the network; and

    at least one receiver device intended to receive said data, wherein the source device uses a network active encryption key to encrypt data liable to be broadcast in the network; and

    in that the receiver device contains;

    a network active decryption key for decrypting data encrypted using said active encryption key and at least one decryption key of the network for decrypting data encrypted with the aid of an encryption key used previously in the network.

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