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:
Sep. 01, 2026
Filed:
Sep. 22, 2024
Sga Solutions Co., Ltd., Seoul, KR;
Ki UK Lee, Seongnam-si, KR;
Jae Hyeok Park, Seoul, KR;
SGA Solutions Co., Ltd., Seoul, KR;
Abstract
A method for controlling access of a user and a user terminal that access a server system using a digital signature includes: performing identity confirmation on a user and a user terminal requesting an access to a server system by using a trust determination machine in which user information and user terminal information are registered; determining a trust level by performing trust evaluation on the user and the user terminal; requesting a digital signature by generating a digital signature request message including determined trust level information, and transmitting the generated digital signature request message to the user terminal; verifying the digital signature by performing verification on the generated signature response; and determining whether there is an access of the user and the user terminal to the server system according to the determined trust level of the user and the user terminal and a verification result of the digital signature.