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Method and apparatus for providing an adaptable security level in an electronic communication

  • US 9,667,634 B2
  • Filed: 01/31/2014
  • Issued: 05/30/2017
  • Est. Priority Date: 04/13/2006
  • Status: Active Grant
First Claim
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1. A method of communicating between a first correspondent and a second correspondent in a data communication system, the method performed on a frame-by-frame basis and comprising:

  • assembling a data stream at said first correspondent, said data stream having at least one frame, said frame having a header and data;

    determining a security level for a frame type of said frame based on a policy, wherein the policy identifies a minimum security level for the frame type;

    incorporating in said header, an indication of said frame type and an indication of said security level;

    forwarding said frame to said second correspondent to enable said second correspondent to determine the acceptability of said frame according to said frame type;

    receiving, from said second correspondent, a frame including security bits that identify a security level for said received frame;

    determining a minimum security level based on a frame type of said received frame and the policy;

    if said security level for said received frame meets said minimum security level for said received frame, accept said received frame; and

    if said security level for said received frame does no meet the minimum security level for said received frame, reject said received frame.

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