Invention Grant
- Patent Title: Systems and methods employing searches for known identifiers of sensitive information to identify sensitive information in data
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Application No.: US13149579Application Date: 2011-05-31
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Publication No.: US10679218B2Publication Date: 2020-06-09
- Inventor: Alan B. Butt
- Applicant: Alan B. Butt
- Applicant Address: US UT Orem
- Assignee: SecurityMetrics, Inc.
- Current Assignee: SecurityMetrics, Inc.
- Current Assignee Address: US UT Orem
- Agency: Durham Jones & Pinegar, P.C., Intellectual Property Law Group
- Main IPC: G06Q20/40
- IPC: G06Q20/40 ; G06F16/903

Abstract:
A data string that includes potentially sensitive information, such as an account number for a payment card, may be evaluated to determine whether or not any portion of the data string encodes a known identifier of sensitive information, such as a known bank identification number (BIN). A fixed number of bytes of the data string may be analyzed using a trie algorithm, in which the value of a first byte is compared with the value of a corresponding first character of the known identifier. A second byte is then compared with a set of values of corresponding second characters, which accompany the first character of the known identifier. Then the value of a third byte of the data string is compared with a set of values of corresponding third values, which accompany the first and second characters of the known identifier. The use of a trie algorithm decreases the length of the search process by several orders of magnitude.
Public/Granted literature
Information query