METHOD AND APPARATUS FOR EFFICIENT AUTHENTICATION AND INTEGRITY CHECKING USING HIERARCHICAL HASHING - Patent 0972374

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EP 0 972 374 A1

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(43)	Date of publication:
	19.01.2000 Bulletin 2000/03

(21)	Application number: 99905733.4

(22)	Date of filing: 04.02.1999

(51)	International Patent Classification (IPC)⁷: H04L 9/32

(86)	International application number:
	PCT/US9902/417

(87)	International publication number:
	WO 9940/702 (12.08.1999 Gazette 1999/32)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

04.02.1998 US 18531

(71)	Applicant: SUN MICROSYSTEMS, INC.
	Palo Alto,California 94303 (US)

(72)	Inventors:
	HANNA, Stephen Bedford, MA 01730 (US) PERLMAN, Radia Acton, MA 01720 (US)

(74)	Representative: Chameroy, Claude et al
	c/o Cabinet Malémont42, avenue du Président Wilson 75116 Paris 75116 Paris (FR)

(54)	METHOD AND APPARATUS FOR EFFICIENT AUTHENTICATION AND INTEGRITY CHECKING USING HIERARCHICAL HASHING