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:
Jun. 08, 2021

Filed:

Jul. 23, 2019
Applicant:

Crypto Lab Inc., Seoul, KR;

Inventors:

Junghee Cheon, Seoul, KR;

Yongsoo Song, Seoul, KR;

Assignee:

Crypto Lab Inc., Seoul, KR;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/08 (2006.01); G06F 17/16 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0853 (2013.01); G06F 17/16 (2013.01); H04L 9/0894 (2013.01);
Abstract

The computer-implemented method for authenticating secret information according to an aspect of the present disclosure, comprises receiving, by an authentication server, Q{right arrow over (X)} from a terminal for registering secret information; storing, by the authentication server, the received Q{right arrow over (X)}; receiving, by the authentication server, a vector {right arrow over (Z)} from a terminal for requesting authentication of secret information; calculating, by the authentication server, the inner product of Q{right arrow over (X)} and {right arrow over (Z)}; calculating, by the authentication server, ½(n−the inner product); and determining, by the authentication server, that the authentication is successful if ½(n−the inner product) is within a predetermined value and that the authentication fails otherwise.


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