(19)
(11) EP 1 025 674 A1

(12)

(43) Date of publication:
09.08.2000 Bulletin 2000/32

(21) Application number: 98952457.4

(22) Date of filing: 02.11.1998
(51) International Patent Classification (IPC)7: H04L 9/32
(86) International application number:
PCT/CA9801/018
(87) International publication number:
WO 9923/781 (14.05.1999 Gazette 1999/19)
(84) Designated Contracting States:
CH DE DK FI FR GB LI SE

(30) Priority: 31.10.1997 US 962441

(71) Applicant: Certicom Corp.
Mississauga,Ontario L4W 5L1 (CA)

(72) Inventors:
  • JOHNSON, Donald, B.
    Manassas, VA 20111 (US)
  • VANSTONE, Scott, A.
    Waterloo, Ontario N2T 2H4 (CA)

(74) Representative: Flaccus, Rolf-Dieter, Dr. 
PatentanwaltBussardweg 10
50389 Wesseling
50389 Wesseling (DE)

   


(54) SIGNATURE VERIFICATION FOR ELGAMAL SCHEMES