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. 03, 2015
Filed:
Jun. 17, 2008
Doo Ho Choi, Daejeon, KR;
Yong-je Choi, Daejeon, KR;
Ho Won Kim, Daejeon, KR;
Kyo IL Chung, Daejeon, KR;
Doo Ho Choi, Daejeon, KR;
Yong-Je Choi, Daejeon, KR;
Ho Won Kim, Daejeon, KR;
Kyo Il Chung, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A communication data protection method based on symmetric key encryption, and an apparatus for enabling the method are provided. A communication data protection method using a Radio Frequency Identification (RFID) reader, the method including: receiving, from a tag, tag information including security parameter information and an encrypted Unique Item Identifier (UII); extracting the UII based on the security parameter information; transmitting, to the tag, a request message including a challenge value for replay prevention; and performing a tag authentication by receiving, from the tag, a response message including a handle and the challenge value.