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:
Sep. 20, 2011

Filed:

May. 30, 2008
Applicant:

Alexey Pakhunov, Redmond, WA (US);

Inventor:

Alexey Pakhunov, Redmond, WA (US);

Assignee:

Microsoft Corporation, Redmond, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

One or more hints can be presented during the entry of protected information. Traditionally, for security reasons, the protected information is displayed as ambiguous characters, hindering the ability to determine if there was an error inputting the information. A hash can be calculated from some or all of the protected information already input, and the resulting hash value can be used to select a hint. The hints can be selected from a relatively small number of easily distinguishable hints, including visual, auditory and sensory hints, or any combination thereof. The hints are not a globally unique identifier of the protected information and can, instead, be used to detect a deviation from the correct entry of the protected information.


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