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Data stream traffic control

  • US 9,485,222 B2
  • Filed: 08/20/2013
  • Issued: 11/01/2016
  • Est. Priority Date: 08/20/2013
  • Status: Active Grant
First Claim
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1. A system for controlling data stream traffic, comprising:

  • a hardware processor to;

    process a data stream at least partially scrambled by a random re-arrangement of information units in the data stream such that the entropy associated with the data stream is not modified so as to anonymize data encoded in the data stream;

    compute a bit equivalent entropy of the processed data stream;

    determine whether the data stream is suitably encrypted based on the bit equivalent entropy; and

    controlling traffic of the data stream based on the computed bit equivalent entropy such that;

    upon the data stream being determined to be suitably encrypted, allowing traffic containing the data stream, orupon the data stream being determined as not being suitably encrypted, restricting traffic containing the data stream;

    wherein determining whether the data stream is suitably encrypted includes;

    computing an entropy curve of bit equivalent entropy values over size of the data stream; and

    determining whether the computed entropy curve matches within a selected range a selected random data entropy curve, whereby, if the match result is negative, it is determined that the data stream is cryptographically unsecure.

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