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. 16, 2019
Filed:
Jan. 15, 2014
Ictk Holdings Co., Ltd., Seongnam-si, KR;
Byong Deok Choi, Seoul, KR;
Dong Kyue Kim, Seoul, KR;
Sang Seon Park, Gyeonggi-do, KR;
Kwang Hyun Jee, Gyeonggi-do, KR;
Dong Hyun Kim, Gyeonggi-do, KR;
ICTK Holdings Co., Ltd., Gyeonggi-do, KR;
Abstract
An IC chip for preventing an authentication key from leaking, and an authentication key setting and authentication key verifying method are provided. A part performing connection or disconnection between an external terminal and a smartcard chip may be configured by a separate chip or may be incorporated into the smartcard chip to configure a single chip. When the part is configured by the separate chip, the disconnection between the external terminal and the smart card chip can be performed according to whether an authentication key is verified. When the part is configured by the one chip, the disconnection between the external terminal and the smart card chip can be performed under a control of the smartcard chip according to whether the authentication key is verified.