Validating stored encoded data slice integrity in a dispersed storage network
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United States of America Patent
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Aug 7, 2018
Grant Date -
Feb 2, 2017
app pub date -
May 2, 2016
filing date -
Jul 31, 2015
priority date (Note) -
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Abstract
An encoded data slice is received for storage by a dispersed storage and task (DST) execution unit. A plurality of initial integrity values are generated by executing a plurality of integrity check algorithms on the encoded data slice. The encoded data slice and the plurality of initial integrity values are stored in a memory of the DST execution unit. A subset of the plurality of integrity check algorithms are selected in response to a request to retrieve the encoded data slice. At least one final integrity value is generated by executing the subset of the plurality of integrity check algorithms on the encoded data slice stored in memory. An integrity status is generated by comparing the at least one final integrity value to the corresponding subset of the plurality of initial integrity values.
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