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Securing data in a dispersed storage network using an encoding equation

  • US 9,104,691 B2
  • Filed: 01/16/2013
  • Issued: 08/11/2015
  • Est. Priority Date: 04/20/2009
  • Status: Active Grant
First Claim
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1. A method comprises:

  • dividing a data segment into a plurality of data segment portions;

    encoding the plurality of data segment portions to produce a plurality of sets of encoded data segment portions, wherein a data segment portion of the plurality of data segment portions is encoded by;

    selecting an encoding equation and at least one encoding constant for the encoding equation, wherein the encoding equation includes an equation for a geometric shape, wherein a given number of points are required to determine the geometric shape;

    setting a first variable of the encoding equation to the data segment portion;

    setting a second variable of the encoding equation to one of a set of pillar numbers;

    executing the encoding equation using the encoding constant, the first variable, and the second variable to produce one of the plurality of sets of encoded data segment portions;

    arranging the plurality of sets of encoded data segment portions into a plurality of encoded data slices; and

    sending the plurality of encoded data slices to distributed storage units of a distributed storage network.

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