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:
Nov. 20, 2012
Filed:
Jul. 07, 2009
Jae-sung Park, Gunpo-si, KR;
Tae-sung Park, Yongin-si, KR;
Jae-hoon Kwon, Seongnam-si, KR;
Do-young Joung, Seoul, KR;
Sung-kee Kim, Hwaseong-si, KR;
Yong-gyoo Kim, Seoul, KR;
Ji-wan Song, Seoul, KR;
Jae-Sung Park, Gunpo-si, KR;
Tae-Sung Park, Yongin-si, KR;
Jae-Hoon Kwon, Seongnam-si, KR;
Do-Young Joung, Seoul, KR;
Sung-Kee Kim, Hwaseong-si, KR;
Yong-Gyoo Kim, Seoul, KR;
Ji-Wan Song, Seoul, KR;
Samsung Electronics Co., LTD, , KR;
Abstract
A method for performing an encrypted voice call between a first terminal and a second terminal supporting a Voice over Internet Protocol (VoIP)-based voice call. In the method, the first and second terminals generate and store a bio key using biographical (bio) information of a user in advance before performing a voice call, the first terminal sends a request for a voice call to the second terminal and establishing a session, the first and second terminals exchange and store a bio key stored in each terminal, and the first and second terminals generate a session shared key using the exchanged bio key and starting a Secure Real-time Transport Protocol (SRTP) session, and a restored bio key by acquiring bio information from received data. User authentication is then performed by comparing the bio key with the restored bio key.