THRESHOLD CRYPTOGRAPHY SCHEME FOR MESSAGE AUTHENTICATION SYSTEMS - Patent 1366594

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(11)

EP 1 366 594 A2

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(88)	Date of publication A3:
	17.10.2002

(43)	Date of publication:
	03.12.2003 Bulletin 2003/49

(21)	Application number: 01981324.5

(22)	Date of filing: 24.09.2001

(51)	International Patent Classification (IPC)⁷: H04L 9/08

(86)	International application number:
	PCT/US0129/842

(87)	International publication number:
	WO 0204/5340 (06.06.2002 Gazette 2002/23)

(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

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Priority:

29.11.2000 US 253781 P

(71)	Applicant: Thomson Licensing S.A.
	92648 Boulogne Cedex (FR)

(72)	Inventor:
	ESKICIOGLU, Ahmet, Mursit Indianapolis, IN 46250 (US)

(74)	Representative: Berthier, Karine
	THOMSON,46 Quai Alphonse Le Gallo 92648 Boulogne Cédex 92648 Boulogne Cédex (FR)

(54)	THRESHOLD CRYPTOGRAPHY SCHEME FOR MESSAGE AUTHENTICATION SYSTEMS