EP 2291744 A2 20110309 - METHOD AND SYSTEM FOR VALIDATING A SUCCESSION OF EVENTS EXPERIENCED BY A DEVICE
Title (en)
METHOD AND SYSTEM FOR VALIDATING A SUCCESSION OF EVENTS EXPERIENCED BY A DEVICE
Title (de)
VERFAHREN UND SYSTEM ZUR VALIDIERUNG DES ERFOLGS VON EREIGNISSEN IN EINEM GERÄT
Title (fr)
PROCEDE ET SYSTEME DE VALIDATION D'UNE SUCCESSION D'EVENEMENTS VECUS PAR UN DISPOSITIF
Publication
Application
Priority
- FR 2009051188 W 20090622
- FR 0854339 A 20080627
Abstract (en)
[origin: WO2009156689A2] The invention relates to a method of validating a succession of events of the life of a device (10) with respect to a predefined sequence of events, comprising the following steps: for each event of the succession: calculation of a current value of a tracing imprint by applying, to an identifier of the event, a hash function parametrized by the previous value of the imprint; storage of this current value on the device; after the succession of events, obtainment by a monitoring system of the last value of the imprint stored on the device; generation by this system of a theoretical imprint by applying successively, to identifiers taken in the order of the events of the predefined sequence, the hash function; if the value of the tracing imprint is equal to the theoretical imprint, validation that the predefined sequence of events has been experienced by the device.
IPC 8 full level
G06F 11/28 (2006.01); G06F 21/62 (2013.01); G06F 21/64 (2013.01); G06K 19/077 (2006.01)
CPC (source: EP US)
G06F 11/28 (2013.01 - EP US)
Citation (search report)
See references of WO 2009156689A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009156689 A2 20091230; WO 2009156689 A3 20100218; AU 2009264025 A1 20091230; AU 2009264025 B2 20150115; CA 2726832 A1 20091230; CN 102077177 A 20110525; CN 102077177 B 20150211; EP 2291744 A2 20110309; FR 2933216 A1 20100101; FR 2933216 B1 20121221; JP 2011526020 A 20110929; JP 2014241655 A 20141225; JP 5886626 B2 20160316; JP 5944462 B2 20160705; KR 20110025179 A 20110309; US 2011047200 A1 20110224
DOCDB simple family (application)
FR 2009051188 W 20090622; AU 2009264025 A 20090622; CA 2726832 A 20090622; CN 200980124521 A 20090622; EP 09769530 A 20090622; FR 0854339 A 20080627; JP 2011515552 A 20090622; JP 2014203909 A 20141002; KR 20107028508 A 20090622; US 99018909 A 20090622