AUTHENTICATION METHOD, ENCRYPTION METHOD, DECRYPTION METHOD, CRYPTOGRAPHIC SYSTEM AND RECORDING MEDIUM - Patent 1836794

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EP 1 836 794 A2

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(88)	Date of publication A3:
	02.11.2006

(43)	Date of publication:
	26.09.2007 Bulletin 2007/39

(21)	Application number: 06700326.9

(22)	Date of filing: 02.01.2006

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International Patent Classification (IPC):

H04L 9/32^(2006.01)

(86)	International application number:
	PCT/KR2006/000001

(87)	International publication number:
	WO 2006/073250 (13.07.2006 Gazette 2006/28)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

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Priority:

07.01.2005 US 641779 P
25.11.2005 KR 20050113648
25.11.2005 KR 20050113647

(71)	Applicant: LG Electronics Inc.
	Seoul 150-721 (KR)

(72)	Inventors:
	KIM, Kun Suk Anyang-si, Gyeonggi-do 431-070 (KR) YOO, Jea Yong Seoul 138-747 (KR) SEO, Kang Soo 104-1504, Chowon APT., Anyang-si, Gyeonggi-do 431-070 (KR)

(74)	Representative: Vossius & Partner
	Siebertstrasse 4 81675 München 81675 München (DE)

(54)	AUTHENTICATION METHOD, ENCRYPTION METHOD, DECRYPTION METHOD, CRYPTOGRAPHIC SYSTEM AND RECORDING MEDIUM