(19)
(11) EP 1 018 239 A1

(12)

(43) Date of publication:
12.07.2000 Bulletin 2000/28

(21) Application number: 98949485.1

(22) Date of filing: 22.09.1998
(51) International Patent Classification (IPC)7H04L 9/30
(86) International application number:
PCT/US9820/036
(87) International publication number:
WO 9916/209 (01.04.1999 Gazette 1999/13)
(84) Designated Contracting States:
BE DE ES FR GB IT LU NL

(30) Priority: 22.09.1997 US 59455 P

(71) Applicant: Eolas Technologies, Inc.
Chicago, IL 60611 (US)

(72) Inventor:
  • DOYLE, Michael, D.
    Wheaton, IL 60187 (US)

(74) Representative: Gill, David Alan et al
W.P. Thompson & Co.,Celcon House,289-293 High Holborn
London WC1V 7HU
London WC1V 7HU (GB)

   


(54) METHOD AND SYSTEM FOR TRANSIENT KEY DIGITAL TIME STAMPS