EP 1044435 B1 20021106 - METHOD AND DEVICE FOR PROCESSING CONFIDENTIAL CODES
Title (en)
METHOD AND DEVICE FOR PROCESSING CONFIDENTIAL CODES
Title (de)
VERFAHREN UND VORRICHTUNG ZUM BEHANDELN VERTRAULICHER KODEWÖRTER
Title (fr)
PROCEDE ET DISPOSITIF DE TRAITEMENT DE CODES CONFIDENTIELS
Publication
Application
Priority
- FR 9802918 W 19981230
- FR 9716786 A 19971231
Abstract (en)
[origin: WO9935621A1] The invention concerns a method for processing confidential codes in a system with security functions (180) consisting in receiving a code; verifying a first clearance, conditioned by a fist code, to access a first function (180); authorising access to the first function (180) if the first clearance is identified; and if the first clearance is not identified, using the code to verify a second clearance, conditioned by a second code distinct from the first code, to activate at least a second function (170), without revealing the fact that the code does not enable to obtain the first clearance. The invention also concerns a device for implementing the method.
IPC 1-7
IPC 8 full level
G07F 7/10 (2006.01)
CPC (source: EP)
G07F 7/1008 (2013.01); G07F 7/1025 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2773250 A1 19990702; FR 2773250 B1 20000310; AT E227454 T1 20021115; CA 2316818 A1 19990715; DE 69809292 D1 20021212; DE 69809292 T2 20030717; DK 1044435 T3 20030303; EP 1044435 A1 20001018; EP 1044435 B1 20021106; ES 2186249 T3 20030501; PT 1044435 E 20030331; WO 9935621 A1 19990715
DOCDB simple family (application)
FR 9716786 A 19971231; AT 98964554 T 19981230; CA 2316818 A 19981230; DE 69809292 T 19981230; DK 98964554 T 19981230; EP 98964554 A 19981230; ES 98964554 T 19981230; FR 9802918 W 19981230; PT 98964554 T 19981230