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:
Feb. 25, 2020
Filed:
Apr. 07, 2019
Estorm Co., Ltd, Seoul, KR;
Jong Hyun Woo, Seoul, KR;
eStorm Co., LTD, Seoul, KR;
Abstract
Provided is a computer implemented method for performing mutual authentication between an online service server and a service user, including: (a) generating, by an authentication server, a server inspection OTP; (b) generating, by an OTP generator, a verification OTP having the same condition as the server inspection OTP and using the same generation key as an OTP generation key and a calculation condition different from a calculation condition is applied or a generation key different from the OTP generation key is used and the same calculation condition as the calculation condition used for generating the server inspection OTP is applied to generate a user OTP; and (c) generating, by the authentication server, a corresponding OTP having the same condition as the user OTP and comparing whether the generated corresponding OTP and the user OTP match each other to authenticate the service user.