The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2020
Filed:
May. 31, 2011
Alan B. Butt, Orem, UT (US);
Alan B. Butt, Orem, UT (US);
SecurityMetrics, Inc., Orem, UT (US);
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.