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. 08, 2015

Filed:

Dec. 13, 2013
Applicant:

Ca, Inc., Islandia, NY (US);

Inventor:

VenkataBabji Sama, Bangalore, IN;

Assignee:

CA, Inc., New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 29/06 (2006.01); G06F 21/31 (2013.01);
U.S. Cl.
CPC ...
H04L 63/083 (2013.01); G06F 21/31 (2013.01); H04L 9/3226 (2013.01); H04L 9/3271 (2013.01); G06F 2221/2103 (2013.01);
Abstract

A method includes transmitting a User ID and a full Password of a user of a client device to a server via the client device, and then establishing a network connection between the client device and the server after the User ID and the full Password. The method also includes receiving, from the server via the client device, an encrypted secret PIN (ESPIN) and a challenge for corresponding positions of a Partial Password, entering the Partial Password via the client device, and computing a secret PIN (SPIN) from the ESPIN via the client device in response to a correct entry of the Partial Password. The Additional Factor is unlocked using the SPIN, and the unlocked Additional Factor is transmitted to the server to request authentication of the user of the client device. The client device includes a processor and memory having instructions for the above method.


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