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.

Date of Patent:
Dec. 20, 2016

Filed:

May. 16, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Michael S. Brown, Wahroonga, AU;

Carlos F. Franca da Fonseca, Ermington, AU;

Neil I. Readshaw, Parkwood, AU;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01); H04L 29/06 (2006.01); G06F 21/31 (2013.01); G06F 21/62 (2013.01);
U.S. Cl.
CPC ...
H04L 63/0838 (2013.01); G06F 21/31 (2013.01); G06F 21/6218 (2013.01); H04L 63/10 (2013.01);
Abstract

A method for determining if a user of a computer system is a human. A processor receives an indication that a computer security program is needed and acquires at least one image depicting a first string of characters including at least a first and second set of one or more characters. A processor assigns a substitute character to be used as input for each of the second set of one or more characters. A processor presents the at least one image and an indication of the substitute character and when to use the substitute character to the user. A processor receives a second string of characters from the user. A processor determines whether the second string of characters substantially matches the first string of characters based on the substitute character assigned to each of the second set of one or more characters and determines whether the user is a human.


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