Encrypting data for storage in a dispersed storage network
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United States of America Patent
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Jun 28, 2016
Grant Date -
Oct 31, 2013
app pub date -
Apr 23, 2013
filing date -
Apr 25, 2012
priority date (Note) -
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Abstract
A method begins by a dispersed storage (DS) processing module dividing data into a plurality of data segments, encoding a data segment using a dispersed storage error encoding function to produce a set of encoded data slices, and generating slice names for each encoded data slice to produce a plurality of slice names. When a subset of encoded data slices of the set of encoded data slices is to be encrypted, the method continues with the DS processing module generating a master key, selecting a portion of the slice names for the subset of encoded data slices to produce a subset of selected slice name portions, generating a subset of encryption keys, encrypting the subset of encoded data slices using the subset of encryption keys to produce a subset of encrypted encoded data slices, and outputting the subset of encrypted encoded data slices to a dispersed storage network (DSN).
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