ENCRYPTING DATA FOR STORAGE IN A DISPERSED STORAGE NETWORK
First Claim
1. A method for dispersed storage error encoding data by a computing device, the method comprises:
- generating a data matrix from the data, wherein the data matrix includes a plurality of columns and a plurality of rows, a column of the plurality of columns is based on data size and a row of the plurality of rows is based on a data grouping;
generating a chunkset data matrix from one or more rows of the data matrix; and
matrix multiplying the chunkset data matrix by an encoding matrix to produce a chunkset slice matrix, wherein a row of the chunkset slice matrix corresponds to an encoded data slice and wherein the plurality of rows of the chunkset slice matrix corresponds to a set of encoded data slices, wherein a decode threshold number of encoded data slices of the set of encoded data slices is needed to recover the data grouping associated with the one or more rows of the data matrix.
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Abstract
A method includes generating a data matrix from the data, wherein the data matrix includes a plurality of columns and a plurality of rows. The method further includes generating a chunkset data matrix from one or more rows of the data matrix. The method further includes matrix multiplying the chunkset data matrix by an encoding matrix to produce a chunkset slice matrix, wherein a row of the chunkset slice matrix corresponds to an encoded data slice and wherein the plurality of rows of the chunkset slice matrix corresponds to a set of encoded data slices, wherein a decode threshold number of encoded data slices of the set of encoded data slices is needed to recover the data grouping associated with the one or more rows of the data matrix.
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Citations
14 Claims
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1. A method for dispersed storage error encoding data by a computing device, the method comprises:
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generating a data matrix from the data, wherein the data matrix includes a plurality of columns and a plurality of rows, a column of the plurality of columns is based on data size and a row of the plurality of rows is based on a data grouping; generating a chunkset data matrix from one or more rows of the data matrix; and matrix multiplying the chunkset data matrix by an encoding matrix to produce a chunkset slice matrix, wherein a row of the chunkset slice matrix corresponds to an encoded data slice and wherein the plurality of rows of the chunkset slice matrix corresponds to a set of encoded data slices, wherein a decode threshold number of encoded data slices of the set of encoded data slices is needed to recover the data grouping associated with the one or more rows of the data matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer readable memory device comprises:
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a first memory section that stores operational instructions that, when executed by a computing device, causes the computing device to; generate a data matrix from the data, wherein the data matrix includes a plurality of columns and a plurality of rows, a column of the plurality of columns is based on data size and a row of the plurality of rows is based on a data grouping; a second memory section that stores operational instructions that, when executed by the computing device, causes the computing device to; generate a chunkset data matrix from one or more rows of the data matrix; and a third memory section that stores operational instructions that, when executed by the computing device, causes the computing device to; matrix multiply the chunkset data matrix by an encoding matrix to produce a chunkset slice matrix, wherein a row of the chunkset slice matrix corresponds to an encoded data slice and wherein the plurality of rows of the chunkset slice matrix corresponds to a set of encoded data slices, wherein a decode threshold number of encoded data slices of the set of encoded data slices is needed to recover the data grouping associated with the one or more rows of the data matrix. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification