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Reproducing data from obfuscated data retrieved from a dispersed storage network

  • US 10,169,146 B2
  • Filed: 04/18/2016
  • Issued: 01/01/2019
  • Est. Priority Date: 12/27/2010
  • Status: Active Grant
First Claim
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1. A method for execution by a computing device in a dispersed storage network (DSN), the method comprises:

  • first encoding first data into a first plurality of sets of encoded data slices, wherein the first encoding is in accordance with a first dispersed error encoding function such that, for a set of encoded data slices of the first plurality of sets of encoded data slices, a first decode threshold number of encoded data slices is required to recover a corresponding first data segment of the first data;

    second encoding second data into a second plurality of sets of encoded data slices, wherein the second encoding is in accordance with a second dispersed error encoding function such that, for a set of encoded data slices of the second plurality of sets of encoded data slices, a second decode threshold number of encoded data slices is required to recover a corresponding second data segment of the first data, wherein the second data segment is different from the first data segment;

    creating a plurality of mixed sets of encoded data slices from the first and second plurality of sets of encoded data slices in accordance with a mixing pattern; and

    outputting the plurality of sets of mixed encoded data slices to storage units of the DSN for storage therein.

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