APPARATUS AND METHOD FOR AUTHENTICATION FOR MOTOR VEHICLES

• US 20120045058A1
• Filed: 08/18/2011
• Published: 02/23/2012
• Est. Priority Date: 08/20/2010
• Status: Active Grant

• Current Assignee: Hella KGaA Hueck & Company
• Original Assignee: Hella KGaA Hueck & Company
• Inventors: Weghaus, Ludger
• Granted Patent: US 8,923,514 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user

Abstract

An arrangement on monitoring of authentication, in particular for motor vehicles, includes a first communication apparatus and at least a second communication apparatus, between which a wireless communication channel can be set up. The communication apparatus items have means for authentication and encryption, with which the exchangeable data may be encrypted via the communication channel. The items of communication apparatus have storage means in which one of the digital keys usable for authentication and encryption can be stored, and in that in the storage device there is either in addition to the digital key and/or in the individual key at least one piece of information regarding at least one past communication between the first communication apparatus and the second apparatus that can be stored in memory.

Claims

1. An arrangement for monitoring of authentication, in particular for motor vehicles, comprising:

a first communication apparatus and at least a second communication apparatus, between which a wireless communication channel can be set up,

the communication apparatuses having an authentication element and an encryption element, with which exchangeable data may be encrypted via the communication channel;

each of the communication apparatuses having a memory in which a digital key usable for authentication and encryption can be stored; and

at least one piece of information regarding at least one past communication between the first communication apparatus and the second apparatus that can be stored in memory, being stored in at least one of the memories.

2. The arrangement according to claim 1, wherein for authentication of the first and/or second communication apparatuses via the communication channel, the authentication data encrypted with the digital key are transferable from the first to the second communication apparatus and/or the reverse.

3. The arrangement according to claim 2, wherein for authentication of the first and/or second communication apparatuses via the communication channel the stored piece of information regarding at least one past communication is transferable between the communication apparatuses.

4. The arrangement according to claim 3, wherein the stored information of at least one past communication is part of the encrypted authentication data or is in addition to the authentication data and is transferable.

5. The arrangement according to claim 1 wherein after a successful authentication of the digital key the digital key is changeable in the first authentication and encryption elements and/or in the second authentication and encryption elements.

6. The arrangement according to claim 5, wherein the changed key or the changed keys are transferable from the first communication apparatus to the second communication apparatus and/or the reverse.

7. The arrangement according to claim 1 wherein after a successful authentication, the information of at least one past communication is changeable through the authentication and encryption elements of the first communication apparatus or the second communication apparatus after a change rule that depends on information from the current communication, and may be transferred through the communication channel to the other communication apparatus and may be stored in the memory of both communication apparatuses.

8. The arrangement according to one of claim 1 wherein after a successful authentication the information of at least one past communication is changeable through the first authentication and encryption element and the second authentication and encryption element after an identical change rule, depending on at least one equivalent piece of information via a current communication.

9. The arrangement according to one of claim 1 with further comprising exactly a first communication apparatus and at least 2 second communication apparatuses, wherein the first communication apparatus is set up in a motor vehicle and the second communication apparatus is set up in a radio telemetry service.

10. The arrangement according to claim 9, wherein the memory of the first communication apparatus stores, according to the second communication apparatus, a digital key and at least one piece of information of at least one past communication.