Wirelessly communicating a data file

• US 9,400,714 B2
• Filed: 10/09/2012
• Issued: 07/26/2016
• Est. Priority Date: 06/06/2011
• Status: Active Grant

• Current Assignee: Pure Storage, Inc.
• Original Assignee: International Business Machines Corporation
• Inventors: Grube, Gary W., Markison, Timothy W.
• Primary Examiner(s): Harriman, Dant Shaifer
• Application Number:
  US13/647,528
• Publication Number:
  US 20130108048A1
• Time in Patent Office: 1,386 Days
• Field of Search: 380/270
• US Class Current: 1/1
• CPC Class Codes: G06F 11/00 Error detection; Error correction; Monitoring error detection, correction or monitoring in information storage based on relative movement between record carrier and transducer G11B20/18; monitoring, i.e. supervising the progress of recording or reproducing G11B27/36; in static stores G11C29/00
• CPC Class Codes: G06F 11/10 Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
• CPC Class Codes: G06F 11/1012 using codes or arrangements adapted for a specific type of error G06F11/1048 takes precedence
• CPC Class Codes: G06F 11/1076 Parity data used in redundant arrays of independent storages, e.g. in RAID systems
• CPC Class Codes: G06F 11/1092 Rebuilding, e.g. when physically replacing a failing disk
• CPC Class Codes: G06F 2211/1028 Distributed, i.e. distributed RAID systems with parity
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/064 Management of blocks
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic

Abstract

A method begins by a dispersed storage (DS) processing module sending a plurality of undecodeable portions of a plurality of data files via a public wireless communication network to one or more targeted devices of a private wireless communication network. The method continues with the DS processing module sending data content indicators regarding the plurality of data files and in response to a selection of a data file of the plurality of data files based on a corresponding one of the data content indicators, sending, via the private wireless communication network, one or more encoded data slices of each of one or more sets of encoded data slices of the data file such that, for each of the one or more sets of encoded data slices, the one or more targeted devices obtains at least a decode threshold number of encoded data slices to decode the data file.

Claims

1. A method comprises:

sending a plurality of undecodeable portions of a plurality of data files via a public wireless communication network to one or more targeted devices of a private wireless communication network, wherein an undecodeable portion of a data file of the plurality of undecodeable portions represents one or more subsets of encoded data slices of one or more sets of encoded data slices, wherein each of the one or more subsets of encoded data slices of the one or more sets of encoded data includes less than a decode threshold number of encoded data slices to decode the data file,

and wherein the data file is encoded using a dispersed storage error coding function to produce the one or more sets of encoded data slices;

sending a plurality of data content indicators regarding the plurality of data files; and

in response to a selection of a data file of the plurality of data files based on a corresponding one of the plurality of data content indicators, sending, via the private wireless communication network, one or more additional encoded data slices of each of the one or more sets of encoded data slices such that, for each of the one or more sets of encoded data slices, the one or more targeted devices obtains at least the decode threshold number of encoded data slices to decode the data file.

2. The method of claim 1 further comprises:

the one or more targeted devices including a plurality of targeted devices, wherein a targeted device of the plurality of targeted devices provides the selection and wherein the one or more additional encoded data slices of each of the one or more sets of encoded data slices are sent to the targeted device.

3. The method of claim 1 further comprises:

the one or more targeted devices including a plurality of targeted devices, wherein a targeted device of the plurality of targeted devices provides the selection and wherein the one or more additional encoded data slices of each of the one or more sets of encoded data slices are sent to the

plurality of targeted devices.

4. The method of claim 1, wherein the data content indicators comprises one of:

a non-confidential description of the data file;

a video graphic thumbnail of the data file;

non-classified information of the data file; and

a data file name.

5. The method of claim 1, wherein a subset of the one or more subsets of encoded data slices comprises:

less than the decode threshold number of encoded data slices such that the data file is undecodeable from the less than the decode threshold number of encoded data slices.

6. The method of claim 1 further comprises:

the one or more subsets of encoded data slices including a plurality of subsets of encoded data slices, wherein, from subset to subset of the plurality of subsets of encoded data slices, the plurality of subsets of encoded data slices includes a different combination of encoded data blocks of the data file.

7. A method comprises:

receiving a plurality of undecodeable portions of a plurality of data files via a public wireless communication network, wherein an undecodeable portion of a data file of the plurality of undecodeable portions represents one or more subsets of encoded data slices of one or more sets of encoded data slices, wherein each of the one or more subsets of encoded data slices of the one or more sets of encoded data includes less than a decode threshold number of encoded data slices to decode the data file, and wherein the data file is encoded using a dispersed storage error coding function to produce the one or more sets of encoded data slices;

receiving, via the public wireless communication network, a plurality of data content indicators regarding the plurality of data files;

generating a selection response to select a data file of the plurality of data files based on a corresponding one of the plurality of data content indicators; and

receiving, via a private wireless communication network, one or more additional encoded data slices of each of the one or more sets of encoded data slices such that, for each of the one or more sets of encoded data slices, at least the decode threshold number of encoded data slices is obtained to allow decoding of the data file.

8. The method of claim 7, wherein the data content indicators comprises one of:

a non-confidential description of the data file;

a video graphic thumbnail of the data file;

non-classified information of the data file; and

a data file name.

9. The method of claim 7, wherein a subset of the one or more subsets of encoded data slices comprises:

less than the decode threshold number of encoded data slices such that the data file is undecodeable from the less than the decode threshold number of encoded data slices.

10. The method of claim 7 further comprises:

the one or more subsets of encoded data slices including a plurality of subsets of encoded data slices, wherein, from subset to subset of the plurality of subsets of encoded data slices, the plurality of subsets of encoded data slices includes a different combination of encoded data blocks of the data file.

11. The method of claim 7, wherein the generating the selection response comprises at least one of:

an automated process based on at least one of a task, a geographic location, a group identification, and a time period; and

a user selection detection process, wherein the selection response includes identification of the selected data file.