EP 0965106 A1 19991222 - ELECTRONIC KEY SELF-MONITORING METHOD IN A SYSTEM CONTROLLING ACCESS TO A RESOURCE AND ELECTRONIC KEY IMPLEMENTING THE METHOD
Title (en)
ELECTRONIC KEY SELF-MONITORING METHOD IN A SYSTEM CONTROLLING ACCESS TO A RESOURCE AND ELECTRONIC KEY IMPLEMENTING THE METHOD
Title (de)
SELBSTKONTROLLVERFAHREN EINES ELEKTRONISCHEN SCHLÜSSELS IN EINEM ZUGANGSKONTROLLSYSTEM UND ELEKTRONISCHER SCHLÜSSEL DAFÜR
Title (fr)
PROCEDE D'AUTO-CONTROLE D'UNE CLE ELECTRONIQUE DANS UN SYSTEME DE CONTROLE D'ACCES A UNE RESSOURCE ET CLE ELECTRONIQUE METTANT EN OEUVRE UN TEL PROCEDE
Publication
Application
Priority
- FR 9900022 W 19990108
- FR 9800126 A 19980108
Abstract (en)
[origin: FR2773426A1] The invention concerns a self-monitoring protocol for an electronic key wherein the key equipped with a real time clock delivering a time variable (VH) and an access right, wherewith is associated a signature value (S(PH) of the validity range (PH) concerning this access right. Said method consists in verifying, from a specific verification key, the signature value (S(PH) of the validity range (PH) concerning the access right; comparing the time variable (VH) with the validity range (PH); and the electronic key is self-invalidated in case of a negative response to one of the verification and comparison steps respectively.
IPC 1-7
IPC 8 full level
E05B 49/00 (2006.01); G06F 21/31 (2013.01); G06F 21/34 (2013.01); G07C 9/00 (2006.01); H04L 9/32 (2006.01)
CPC (source: EP)
G07C 9/21 (2020.01); H04L 9/3247 (2013.01)
Citation (search report)
See references of WO 9935616A1
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
FR 2773426 A1 19990709; FR 2773426 B1 20000303; EP 0965106 A1 19991222; JP 2001517413 A 20011002; WO 9935616 A1 19990715
DOCDB simple family (application)
FR 9800126 A 19980108; EP 99900507 A 19990108; FR 9900022 W 19990108; JP 53578299 A 19990108