(19)
(11) EP 1 864 426 A1

(12)

(43) Date of publication:
12.12.2007 Bulletin 2007/50

(21) Application number: 06716286.7

(22) Date of filing: 09.03.2006
(51) International Patent Classification (IPC): 
H04L 9/08(2006.01)
(86) International application number:
PCT/KR2006/000836
(87) International publication number:
WO 2006/096017 (14.09.2006 Gazette 2006/37)
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 09.03.2005 KR 20050019650
24.01.2006 KR 20060007226

(71) Applicants:
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Daejeon 305-350 (KR)
  • Samsung Electronics Co., Ltd
    Suwon-si, Gyeonggi-do 442-742 (KR)
  • KT Corporation
    Seongnam-city, Kyeongki-do 463-711 (KR)
  • SK Telecom Co., Ltd.
    Seoul 110-110 (KR)
  • Hanaro Telecom, Inc.
    Seoul 100-733 (KR)

(72) Inventors:
  • CHO, Seok-Heon
    Iksan-city, Jeollabuk-do 570-976 (KR)
  • CHANG, Sung-Cheol
    Daejeon-city 305-390 (KR)
  • YOON, Chul-Sik
    Daejeon-city 302-120 (KR)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) AUTHENTICATION METHOD AND KEY GENERATING METHOD IN WIRELESS PORTABLE INTERNET SYSTEM