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:
Aug. 17, 2010
Filed:
Apr. 06, 2006
Chen-hwa Song, Taipei, TW;
Chih-yin Lin, Taichung County, TW;
Yau-deh Tzeng, PingTung County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The invention is directed to a method for applying a certificate suitable for a portable telephone belonging to a user, wherein the portable telephone comprises a telephone number. The method comprises steps of generating a user key pair in the portable telephone, wherein the key pair comprises a user public key information and then transmitting an applying packet from the portable telephone to a certificate authority through a switching center by using a short message service, wherein the applying packet comprises at least the user public key information. The user is verified according to the telephone number received by the certificate authority from the switching center. A certificate packet is generated by the certificate authority, wherein the certificate packet comprises at least a serial number and a certificate authority signature. The certificate packet is transmitted to the portable telephone according to the telephone number by using the short message service.