EP 1741019 A1 20070110 - AUTHENTICATION OF CONTROL UNITS IN A VEHICLE
Title (en)
AUTHENTICATION OF CONTROL UNITS IN A VEHICLE
Title (de)
AUTHENTISIERUNG VON STEUERGERÄTEN IN EINEM FAHRZEUG
Title (fr)
AUTHENTIFICATION D'APPAREILS DE COMMANDE DANS UN VEHICULE
Publication
Application
Priority
EP 2004004666 W 20040429
Abstract (en)
[origin: WO2005116834A1] The invention particularly relates to a method for authenticating control units in a bus system of a motor vehicle. In order to effectively and inexpensively prevent a sequence control system that is stored in a control unit from being manipulated, a first control unit transmits an authentication request to an authentication apparatus via the bus system, said authentication apparatus signs the authentication request using a first symmetric key and transmits the signed authentication request or exclusively the signature to the first control unit, the first control unit compares the transmitted signature of the authentication request to a signature which is determined by the first control unit by applying the symmetric key to the authentication request, and/or the first control unit decodes the transmitted signature of the authentication request using the first symmetric key and a first hash value is obtained, and the first control unit applies a hash algorithm to the authentication request, whereby a second hash value is obtained, and the first control unit is rendered operational if the comparison of the signatures and/or the hash values is positive or if the signatures and/or the hash values match.
IPC 8 full level
G06F 1/00 (2006.01); G06F 21/30 (2013.01); G06F 21/31 (2013.01); G06F 21/57 (2013.01)
CPC (source: EP US)
G06F 21/305 (2013.01 - EP US); G06F 21/31 (2013.01 - EP US); G06F 21/575 (2013.01 - EP US); H04L 9/3236 (2013.01 - EP US); H04L 9/3247 (2013.01 - EP US); G06F 2221/2103 (2013.01 - EP US); G06F 2221/2129 (2013.01 - EP US); H04L 2209/84 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 2005116834 A1 20051208; CN 100492248 C 20090527; CN 1942843 A 20070404; EP 1741019 A1 20070110; JP 2007534544 A 20071129; JP 4469892 B2 20100602; US 2007118752 A1 20070524
DOCDB simple family (application)
EP 2004004666 W 20040429; CN 200480042875 A 20040429; EP 04730262 A 20040429; JP 2007509884 A 20040429; US 58823506 A 20061027