System and method for securing information by obscuring contents of a persistent image
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United States of America Patent
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Sep 17, 2013
Grant Date -
Jan 24, 2008
app pub date -
Jul 18, 2006
filing date -
Jul 18, 2006
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Abstract
Files or directories in a persistent image such as a file system backup structure are hidden from general access by establishing a data set used by the file system when accessing the persistent image. The data set indicates a visibility status of the files or directories in the persistent image. Requests to the file system for access to the image are filtered through the data set to prevent unintentionally revealed information in the image from being generally available. Commands to add and remove entries in the data set are provided. The data set may be composed of combinations of lists, in which list entries indicate a hidden file or directory, or indicate a visible file or directory. The data set is maintained in system memory and updated on disk to permit restoration of the data set when a volume is mounted or during recovery from a system crash. Information that was unintentionally revealed in the active file system while a backup was being made can be obscured retroactively to provide protection from general access to improve information security in the file system.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
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Patent Owner(s)
- NETAPP, INC.;NETWORK APPLIANCE, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Sobel, Jason | Santa Clara, US | 6 | 84 |
Voll, James | Palo Alto, US | 5 | 123 |
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