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Secure dynamic link allocation system for mobile data communication

  • US 20020032853A1
  • Filed: 04/17/2001
  • Published: 03/14/2002
  • Est. Priority Date: 04/17/2000
  • Status: Abandoned Application
First Claim
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1. A method for layered secure communications involving at least one mobile unit, the mobile unit hosting at least one application program and the application program sending a message having associated with it a source application, a destination application and a message type, the method comprising the steps of:

  • establishing a base privilege control table comprising a series of entries, each entry in the table indicating a permitted class of messages corresponding to a predetermined combination of a selected sending application, a selected destination application and a selected message type;

    providing a series of content labels;

    associating each of the content labels to at least one entry in the privilege control table;

    examining the message to determine the type of the message without reading the payload of the message;

    determining whether the message is permitted or not by reference to the privilege control table; and

    if the message is permitted by the privilege control table, adding the associated content label to the message and approving the message for transmission to the destination application.

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