The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2021
Filed:
Jan. 24, 2019
Karamba Security Ltd., Hod Hasharon, IL;
Amir Herzberg, Hod Hasharon, IL;
Assaf Harel, Ramat Hasharon, IL;
Eli Mordechai, Modiin, IL;
Tal Efraim Ben David, Hogal, IL;
Amiram Dotan, Birmingham, MI (US);
David Barzilai, Hod Rasharon, IL;
Itay Khazon, Hod Hasharon, IL;
KARAMBA SECURITY LTD, Hod Hasharon, IL;
Abstract
In some implementations, a scheme for data communication in an automobile includes generating a cleartext message to be transmitted to a second ECU, generating a pseudo-random counter by applying a pseudorandom function to a counter value that is incremented for each cleartext message generated by the ECU; combining the cleartext message and the pseudo-random counter to create a randomized message; selecting from a plurality of available cryptography techniques, a selected cryptography technique; applying to the randomized message, the selected cryptography technique to create a ciphertext; and transmitting to the second ECU over the CAN bus, the ciphertext.