Hash file system and method for use in a commonality factoring system
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United States of America Patent
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Mar 9, 2004
Grant Date -
Nov 1, 2001
app pub date -
Feb 5, 2001
filing date -
Feb 18, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for a computer file system that is based and organized upon hashes and/or strings of digits of certain, different, or changing lengths and which is capable of eliminating or screening redundant copies of aggregate blocks of data (or parts of data blocks) from the system. The hash file system of the present invention utilizes hash values for computer files or file pieces which may be produced by a checksum generating program, engine or algorithm such as industry standard MD4, MD5, SHA or SHA-1 algorithms. Alternatively, the hash values may be generated by a checksum program, engine, algorithm or other means that produces an effectively unique hash value for a block of data of indeterminate size based upon a non-linear probablistic mathematical algorithm.
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