Encryption of slice partials
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United States of America Patent
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Apr 10, 2018
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app pub date -
Sep 28, 2017
filing date -
Aug 25, 2010
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Abstract
A method for use in a distributed storage network (DSN) including a plurality of distributed storage (DS) units includes receiving, at a DS unit, a rebuilding request indicating that the DS unit is to provide an encrypted partial slice to a requesting DS unit included in the DS network. Key pairing requirements associated with the rebuilding request are determined, and an even number of key pairing entities are selected based on the key pairing requirements. The even number of key pairing entities being fewer than a decode threshold number of key pairing entities. The DS unit generates shared secret keys corresponding to each of the even number of key pairing entities, uses those keys to generate an encrypted partial slice, and transmits the encrypted partial slice to the requesting DS unit in accordance with a rebuilding topology.
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