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Device and Method for Secured Communication

  • US 20090292816A1
  • Filed: 05/19/2009
  • Published: 11/26/2009
  • Est. Priority Date: 05/21/2008
  • Status: Active Grant
First Claim
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1. A field security device for providing a secure private network (SPN) between a field traffic controller and a traffic management center (TMC), comprising:

  • a first connector for interfacing with the field traffic controller;

    a communication module;

    at least one processor operative coupled to the first connector and the communication module; and

    a memory module operatively coupled to the at least one processor and comprising executable code for the at least one processor to;

    access a public network via the communication module;

    locate an authentication server of the TMC via the public network;

    send a device identifier to the authentication server via the communication module, the device identifier being based on a combination of at least one user-configurable parameter and at least one non-user-configurable parameter of the field security device; and

    in response to the authentication server authenticating the device identifier from the field security device, establish the SPN between the field security device and the TMC, wherein the established SPN tunnels across at least one segment of the public network.

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