(19)
(11) EP 1 192 516 A1

(12)

(43) Date of publication:
03.04.2002 Bulletin 2002/14

(21) Application number: 00938383.7

(22) Date of filing: 08.06.2000
(51) International Patent Classification (IPC)7G06F 1/00, H04L 9/06, G06F 9/44
(86) International application number:
PCT/CA0000/677
(87) International publication number:
WO 0077/596 (21.12.2000 Gazette 2000/51)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 09.06.1999 US 329117
10.11.1999 US 164892 P

(71) Applicant: Cloakware Corporation
Kanata,Ontario K2L 3H1 (CA)

(72) Inventors:
  • CHOW, Stanley, T.
    Nepean, Ontario K2H 2A8 (CA)
  • JOHNSON, Harold, J.
    Nepean, Ontario K2H 6N7 (CA)
  • GU, Yuan
    Kanata, Ontario K2L 3L8 (CA)

(74) Representative: Hooper, John Peter Lindesay 
5 Haslingfield Road
Harlton,Cambridge CB3 7ER
Harlton,Cambridge CB3 7ER (GB)

   


(54) TAMPER RESISTANT SOFTWARE ENCODING