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PACKET TRANSMITTING AND RECEIVING APPARATUS AND PACKET TRANSMITTING AND RECEIVING METHOD

  • US 20100303233A1
  • Filed: 05/17/2010
  • Published: 12/02/2010
  • Est. Priority Date: 05/26/2009
  • Status: Active Grant
First Claim
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1. A packet transmitting and receiving apparatus comprising:

  • an encryption processing unit that, when transmission data to be transmitted to a transmission destination apparatus is received, judges whether an encryption key exchanged with the transmission destination apparatus is registered and that is configured, in a case where the encryption key is registered, so as to encrypt the transmission data by using the encryption key and to transmit the encrypted transmission data to the transmission destination apparatus and, in a case where the encryption key is not registered, so as to exchange the encryption key with the transmission destination apparatus and to register the encryption key;

    a substitute data notifying unit that, when a call setting request is received from a controlling unit, notifies the encryption processing unit of dummy transmission data that is equivalent to the transmission data; and

    a call setting completion notifying unit that, when the encryption processing unit resisters the encryption key, notifies the controlling unit that a call setting process performed in response to the call setting request has been completed.

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