(19)
(11) EP 1 212 682 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
28.12.2016 Bulletin 2016/52

(45) Mention of the grant of the patent:
31.08.2016 Bulletin 2016/35

(21) Application number: 00948727.3

(22) Date of filing: 14.07.2000
(51) International Patent Classification (IPC): 
G06F 11/30(2006.01)
H04L 29/06(2006.01)
G06F 21/55(2013.01)
 G06F 12/14(2006.01)
G06F 21/44(2013.01)
(86) International application number:
PCT/US2000/019488
(87) International publication number:
WO 2001/004758 (18.01.2001 Gazette 2001/03)

(54)

SYSTEM AND METHOD FOR QUICKLY AUTHENTICATING MESSAGES USING SEQUENCE NUMBERS

SYSTEM UND VERFAHREN ZUR SCHNELLEN NACHRICHTEN-AUTHENTIFIZIERUNG UNTER VERWENDUNG VON FOLGENUMMERN

SYSTEME ET PROCEDE D'AUTHENTIFICATION RAPIDE DE MESSAGES A L'AIDE DE NUMEROS DE SEQUENCE

(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 14.07.1999 US 143821 P
30.08.1999 US 151531 P

(43) Date of publication of application:
12.06.2002 Bulletin 2002/24

(73) Proprietor: Symantec Corporation
Mountain View, CA 94043 (US)

(72) Inventors:
  • GEIGER, Robert
    Sunnyvale, CA 94085 (US)
  • LYLE, Michael
    San Jose, CA 95121 (US)

(74) Representative: D Young & Co LLP 
120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)


(56) References cited: : 
WO-A1-97/32447
US-A- 4 897 874
US-A- 5 737 416
 WO-A1-97/33231
US-A- 5 226 079
US-A- 5 892 903
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).