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:
Apr. 29, 2008
Filed:
Feb. 26, 2002
Jong-hyuk Roh, Incheon, KR;
Taesung Kim, Daejeon, KR;
Hee Sun Kim, Daejeon, KR;
Dae Seon Choi, Daejeon, KR;
Young Seob Cho, Daejeon, KR;
Sang Rae Cho, Daejeon, KR;
Seung Hun Jin, Daejeon, KR;
Jong-Hyuk Roh, Incheon, KR;
Taesung Kim, Daejeon, KR;
Hee Sun Kim, Daejeon, KR;
Dae Seon Choi, Daejeon, KR;
Young Seob Cho, Daejeon, KR;
Sang Rae Cho, Daejeon, KR;
Seung Hun Jin, Daejeon, KR;
Electronics and Telecomunications Research Institute, Daejeon, KR;
Abstract
The present invention provides a method for modifying validity of a certificate in a public key infrastructure (PKI)-based authentication system, which is capable of performing online suspension, recovery and revocation of a certificate between a user system and a certificate authority by executing user authentication with guaranteed reliability using user biometric information. Accordingly, there is no need for the user to personally visit a registration authority or certificate authority to modify the certificate validity. The user can easily modify the certificate validity using his/her user system connected online to the certificate authority.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile