公开(公告)号：US11048828B2

公开(公告)日：2021-06-29

申请号：US16614452

申请日：2019-05-14

Applicant: ENIGMATOS LTD.

Inventor： Charly Bitton ,  Alexander Fok ,  Eyal Kamir ,  Yoni Malka ,  Orit Fredkof ,  Liran Zwickl ,  Meni Dali ,  Uriel Friedman

IPC: G06F21/85 ,  G06N20/00 ,  G06F21/64 ,  H04L12/40

Abstract: Systems and methods for identifying the source of a message transmitted on the CAN bus of a vehicle, by creating a unique signature for each ECU. The system is further configured to detest malicious activities on a CAN bus system having a given physical configuration. The signature of an ECU is created based on the non-linearity of the CAN bus, by determining from at least one pulse of a read message a training-signature that includes a pair of sub-signatures: a rising-sub-signature of the rising response, and a falling-sub-signature of the falling response, as viewed by said message generating ECU. By reading a plurality of messages from the ECUs operationally integrated on the CAN bus system, a classification & prediction methodology is used to create, for each message generating ECU, from the respective training-signatures, a unique ECU-signature.

公开(公告)号：US11218476B2

公开(公告)日：2022-01-04

申请号：US16767986

申请日：2019-01-11

Applicant: ENIGMATOS LTD.

Inventor： Eyal Kamir ,  Alexander Fok ,  Orit Fredkof ,  Avi Bitton ,  Yehonatan shlomo Malka ,  Charly Bitton ,  Liran Zwickel ,  Uriel Friedman ,  Meni Dali

IPC: G06F7/04 ,  H04L29/06 ,  G07C5/00

Abstract: The present disclosure relates to a system for authenticating a computerized sub-system of a vehicle, comprising: (A) at the vehicle: (a) a tele-processor configured to periodically record during a period T1 a flow of messages over a bus of the vehicle's sub-system, and to transmit periodically every period T2 the recorded flow of messages to a remote server via a transceiver; (B) at a remote authentication server: (b) a transceiver configured to receive each of said recorded flow of messages; (c) a profile generator configured to generate from each of said flow of messages a temporary profile; and (d) a comparator configured to compare each of said temporary profiles with a final profile which was previously created based on one or more of flows of messages within the vehicle's bus.