Abstract: A method begins with a processing module obtaining data to store and determining whether substantially similar data to the data is stored. When the substantially similar data is not stored, the method continues with the processing module generating a first encryption key based on the data, encoding the first encryption key into encoded data slices in accordance with an error coding dispersal storage function, and storing the encoded data slices in a dispersed storage network (DSN) memory. The method continues with the processing module encrypting the data using an encryption key of the substantially similar data in accordance with an encryption function to produce encrypted data, compressing the encrypted data in accordance with a compression function to produce compressed data, storing the compressed data when the substantially similar data is stored.

Abstract: A method begins with a processing module obtaining data to store and determining whether substantially similar data to the data is stored. When the substantially similar data is not stored, the method continues with the processing module generating a first encryption key based on the data, encoding the first encryption key into encoded data slices in accordance with an error coding dispersal storage function, and storing the encoded data slices in a dispersed storage network (DSN) memory. The method continues with the processing module encrypting the data using an encryption key of the substantially similar data in accordance with an encryption function to produce encrypted data, compressing the encrypted data in accordance with a compression function to produce compressed data, storing the compressed data when the substantially similar data is stored.

Abstract: A method begins by a dispersed storage (DS) processing module of a dispersed storage network (DSN) receiving a plurality of data access requests regarding a plurality of data objects. As individual data access requests of the plurality of data access requests are received, the method continues with the DS processing module, for each of the individual data access requests identifying a corresponding one of a plurality of logical storage pools of the DSN and determining power based access status of the corresponding one of the plurality of logical storage pools. When the power based access status is power saving mode, the method continues with the DS processing module queuing the individual data access request. When the power based access status is not in the power saving mode, the method continues with the DS processing module executing the individual data access request.

Abstract: A method begins with a processing module obtaining data to store and determining whether substantially similar data to the data is stored. When the substantially similar data is not stored, the method continues with the processing module generating a first encryption key based on the data, encoding the first encryption key into encoded data slices in accordance with an error coding dispersal storage function, and storing the encoded data slices in a dispersed storage network (DSN) memory. The method continues with the processing module encrypting the data using an encryption key of the substantially similar data in accordance with an encryption function to produce encrypted data, compressing the encrypted data in accordance with a compression function to produce compressed data, storing the compressed data when the substantially similar data is stored.

Abstract: A computing device includes a processing module and an interface. The processing module is operable to receive, from a requesting device via the interface, a data storage request that includes data for storage. The processing module then determines whether substantially identical data is currently stored in a dispersed storage network (DSN) memory. When the substantially identical data is stored in the DSN memory, the processing module generates, for the requesting device, a second unique retrieval matrix of a plurality of sets of encoded data slices corresponding to the already stored substantially identical data, wherein the requesting device can recover at least a portion of the data based on the second unique retrieval matrix of the plurality of sets of encoded data slices.

Abstract: A computer includes an interface and a processing module. The processing module receives, over time and via the interface, requests to playback recorded broadcast data, wherein a single copy of the recorded broadcast data is dispersed error encoded to produce a plurality of sets of encoded data slices that is stored in a dispersed storage network (DSN). In response to the playback requests, the processing module identifies unique combinations of at least a threshold number of encoded data slices for sets of the plurality of sets of encoded data slices to produce unique copies of the recorded broadcast data. For a particular playback request, the processing module retrieves a unique copy of the unique copies of the recorded broadcast data from the DSN and outputs, via the interface, the retrieved unique copy to a device associated with the particular playback request.

Abstract: A method for securely distributing a profile within a dispersed storage network (DSN) that begins by encrypting a profile using a key. The method continues by encoding the encrypted profile in accordance with a dispersed storage error encoding function. The method continues by outputting the set of encoded profile slices to the DSN for storage therein. The method continues by encoding the key in accordance with an error encoding function and outputting the set of secure key portions to a set of devices of the DSN for storage therein. A device obtains the profile by retrieving secure key portions from the set of devices and recovering the key therefrom. The device then retrieves encoded profile slices from the DSN and decodes them to recover the encrypted profile. The device then decrypts the encrypted profile using the key to recover the profile.

Abstract: A computing device includes a processing module and an interface. The processing module is operable to receive, from a requesting device via the interface, a data storage request that includes data for storage. The processing module then determines whether substantially identical data is currently stored in a dispersed storage network (DSN) memory. When the substantially identical data is stored in the DSN memory, the processing module generates, for the requesting device, a second unique retrieval matrix of a plurality of sets of encoded data slices corresponding to the already stored substantially identical data, wherein the requesting device can recover at least a portion of the data based on the second unique retrieval matrix of the plurality of sets of encoded data slices.

Abstract: A method begins with a processing module obtaining encoded key slices from a plurality of user devices and decoding a threshold number of the encoded key slices utilizing a first error coding dispersal storage function to produce a key when the threshold number of the encoded key slices has been obtained. The method continues with the processing module receiving encoded data slices and decoding a threshold number of encoded data slices utilizing a second error coding dispersal storage function to produce encrypted data when the threshold number of the encoded data slices has been received. The method continues with the processing module decrypting the encrypted data utilizing the key and an encryption function to produce data.

Abstract: A method begins with a processing module receiving, from a requesting device, a data storage request that includes data for storage. The method continues with the processing module determining whether substantially identical data is currently stored in a dispersed storage network (DSN) memory. The method continues with the processing module encoding at least a portion of the data using an error coding dispersal storage function to produce a set of encoded data slices, sending the set of encoded data slices to the DSN memory for storage therein, and generating a unique retrieval matrix for the requesting device, wherein the unique retrieval matrix identifies a sub-set of encoded data slices of the set of encoded data slices for subsequent retrieval of the at least a portion of the data, when the substantially identical data is not stored in the DSN memory.

Abstract: A computer includes an interface and a processing module. The processing module receives, over time and via the interface, requests to playback recorded broadcast data, wherein a single copy of the recorded broadcast data is dispersed error encoded to produce a plurality of sets of encoded data slices that is stored in a dispersed storage network (DSN). In response to the playback requests, the processing module identifies unique combinations of at least a threshold number of encoded data slices for sets of the plurality of sets of encoded data slices to produce unique copies of the recorded broadcast data. For a particular playback request, the processing module retrieves a unique copy of the unique copies of the recorded broadcast data from the DSN and outputs, via the interface, the retrieved unique copy to a device associated with the particular playback request.

Abstract: A method begins by a processing module determining whether to error encode broadcast data. The method continues with the processing module encoding a portion of the broadcast data using an error coding storage dispersal function to produce a set of encoded broadcast data slices, determining whether to compress the set of encoded broadcast data slices for the set of encoded broadcast data slices, and when the set of encoded broadcast data slices is to be compressed, selecting a subset of encoded broadcast data slices of the set of encoded broadcast data slices, when the broadcast data is to be error encoded.

Abstract: A method begins by a processing module determining whether to error encode broadcast data. The method continues with the processing module encoding a portion of the broadcast data using an error coding storage dispersal function to produce a set of encoded broadcast data slices, determining whether to compress the set of encoded broadcast data slices for the set of encoded broadcast data slices, and when the set of encoded broadcast data slices is to be compressed, selecting a subset of encoded broadcast data slices of the set of encoded broadcast data slices, when the broadcast data is to be error encoded.

Abstract: A method begins by a processing module obtaining a unique retrieval matrix based on an identity of the playback device and sending a request for retrieval of a set of encoded broadcast data slices to a dispersed storage network (DSN) memory, wherein the request includes the unique retrieval matrix and identity of the set of encoded broadcast data slices. The method continues with the processing module receiving a subset of the set of encoded broadcast data slices from the DSN memory, wherein the subset of the set of encoded broadcast data slices is based on the unique retrieval matrix. The method continues with the processing module storing the subset of the sets of encoded broadcast data slices.

Abstract: A method begins with a processing module obtaining encoded key slices from a plurality of user devices and decoding a threshold number of the encoded key slices utilizing a first error coding dispersal storage function to produce a key when the threshold number of the encoded key slices has been obtained. The method continues with the processing module receiving encoded data slices and decoding a threshold number of encoded data slices utilizing a second error coding dispersal storage function to produce encrypted data when the threshold number of the encoded data slices has been received. The method continues with the processing module decrypting the encrypted data utilizing the key and an encryption function to produce data.

Abstract: A method begins with a processing module obtaining data to store and determining whether substantially similar data to the data is stored. When the substantially similar data is not stored, the method continues with the processing module generating a first encryption key based on the data, encoding the first encryption key into encoded data slices in accordance with an error coding dispersal storage function, and storing the encoded data slices in a dispersed storage network (DSN) memory. The method continues with the processing module encrypting the data using an encryption key of the substantially similar data in accordance with an encryption function to produce encrypted data, compressing the encrypted data in accordance with a compression function to produce compressed data, storing the compressed data when the substantially similar data is stored.

Abstract: A method begins with a processing module receiving, from a requesting device, a data storage request that includes data for storage. The method continues with the processing module determining whether substantially identical data is currently stored in a dispersed storage network (DSN) memory. The method continues with the processing module encoding at least a portion of the data using an error coding dispersal storage function to produce a set of encoded data slices, sending the set of encoded data slices to the DSN memory for storage therein, and generating a unique retrieval matrix for the requesting device, wherein the unique retrieval matrix identifies a sub-set of encoded data slices of the set of encoded data slices for subsequent retrieval of the at least a portion of the data, when the substantially identical data is not stored in the DSN memory.