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Secure communications and control in a fueling environment

  • US 7,636,840 B2
  • Filed: 03/04/2005
  • Issued: 12/22/2009
  • Est. Priority Date: 07/10/2002
  • Status: Active Grant
First Claim
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1. A first node within a fueling environment with secure communication, the first node:

  • generating a first public key and a first private key associated with the first node;

    publishing the first public key within the fueling environment;

    authenticating a second node within the fueling environment using, at least in part, a second public key associated with the second node and the first public and the first private keys;

    dynamically generating a run-time symmetric key using, at least in part, the first private key and the second public key, the symmetric key comprising a localized key for the first node such that it is not communicated to other nodes; and

    communicating data associated with the fueling environment to the authenticated second node, the data encrypted using the symmetric key and operable to be decrypted by the second node using, at least in part, a second symmetric key localized at the second node.

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