US 7,945,544 B2
Similarity-based access control of data in a data processing system
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US 7,945,544 B2
Similarity-based access control of data in a data processing system
Tech Center:
2100 Computer Architecture and Software
Examiner:
Khanh B Pham
Art Unit:
2166 Data Bases & File Management
Agent:
Davidson Berquist Jackson & Gowdey, LLP
Inventors:
David A. Farber; Ronald D. Lachman
Assignee:
KINETECH, INC.
Priority:
04/11/95
Filed:
10/31/07
Granted:
05/17/11
Expiration:
06/19/23
Abstract
Similarity of data items is determined by analyzing corresponding segments of the data items. A function is applied to each segment of a data item and the output of that function is compared to the output of the same function applied to a corresponding segment of another data item. A function may be applied to the output of the functions. The functions may be hash or message digest functions.
Cooperative Patent Classification (CPC)
Y10Y10S707/99931Y10SG06F16/174G06F

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