(19)
(11) EP 1 360 767 A2

(12)

(88) Date of publication A3:
28.08.2003

(43) Date of publication:
12.11.2003 Bulletin 2003/46

(21) Application number: 01270019.1

(22) Date of filing: 07.12.2001
(51) International Patent Classification (IPC)7: H03M 1/00
(86) International application number:
PCT/DK0100/814
(87) International publication number:
WO 0204/7272 (13.06.2002 Gazette 2002/24)
(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

(30) Priority: 07.12.2000 DK 200001838

(71) Applicant: Cryptico A/S
2100 Copenhagen (DK)

(72) Inventors:
  • PETERSEN, Mette Vesterager
    DK-2000 Federiksberg (DK)
  • SORENSEN, Hans, Martin, Boesgaard
    DK-2800 Lyngby (DK)

(74) Representative: Inspicos A/S 
Böge Allé 3,P.O. Box 45
2970 Hörsholm
2970 Hörsholm (DK)

   


(54) A METHOD OF PERFORMING MATHEMATICAL OPERATIONS IN AN ELECTRONIC DEVICE, A METHOD OF GENERATING PSEUDO-RANDOM NUMBERS IN AN ELECTRONIC DEVICE, AND A METHOD OF ENCRYPTING AND DECRYPTING ELECTRONIC DATA