TRUST GRANT AND REVOCATION FROM A MASTER KEY TO SECONDARY KEYS - Patent 1390828

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EP 1 390 828 A1

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(43)	Date of publication:
	25.02.2004 Bulletin 2004/09

(21)	Application number: 01937758.9

(22)	Date of filing: 25.05.2001

(51)	International Patent Classification (IPC)⁷: G06F 1/00

(86)	International application number:
	PCT/US2001/017128

(87)	International publication number:
	WO 2003/003176 (09.01.2003 Gazette 2003/02)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

(71)	Applicant: America Online, Inc.
	Dulles, VA 20166 (US)

(72)	Inventor:
	ROSKIND, James Redwood City, CA 94065 (US)

(74)	Representative: Schoppe, Fritz, Dipl.-Ing.
	Patentanwälte Schoppe, Zimmermann, Stöckeler & Zinkler,Postfach 246 82043 Pullach bei München 82043 Pullach bei München (DE)

(54)	TRUST GRANT AND REVOCATION FROM A MASTER KEY TO SECONDARY KEYS