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Method and apparatus for securing communication between a mobile node and a network

  • US 8,788,821 B2
  • Filed: 09/19/2012
  • Issued: 07/22/2014
  • Est. Priority Date: 11/26/2003
  • Status: Active Grant
First Claim
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1. A method of generating a message comprising the steps of:

  • a device accessing a message;

    the device generating a checksum of the message;

    the device accessing a session key, wherein the session key is negotiated prior to the accessing by;

    initiating a communication session using a protocol;

    receiving a public key within a vendor specific packet of the protocol, wherein the vendor specific packet includes a field indicating that the packet includes data in a format specified by a vendor;

    generating a session key from the public key; and

    communicating the session key within an initial request message (RRQ) of the protocol;

    the device generating an authentication code by performing a one-way hash function on the checksum using the session key; and

    the device generating an output message that includes the message and the authentication code, wherein the output message is intended for a first hop IP router.

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