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. 14, 2012
Filed:
Aug. 07, 2008
Young-jun Park, Seoul, KR;
Min-young Ahn, Seongnam-si, KR;
Kug Shin, Seoul, KR;
Kwang-jo Kim, Daejeon, KR;
Kyu-suk Han, Seoul, KR;
Young-Jun Park, Seoul, KR;
Min-Young Ahn, Seongnam-si, KR;
Kug Shin, Seoul, KR;
Kwang-Jo Kim, Daejeon, KR;
Kyu-Suk Han, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Information and Communications University Research and Cooperation Group, Daejeon, KR;
Abstract
An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.