Patent · US Active

In-place authentication scheme for securing intra-vehicle communication

US10419408B1 · kind B1 · utility

3Cited by

5References

20Claims

0Family size

Assignee

Karamba Security Ltd. · IL

Inventors

Amir Herzberg · Ramat Gan, IL
Assaf Harel · Ramat HaSharon, IL
Eli Mordechai · Holon, IL
Tal Efraim Ben David · Hogla, IL
Amiram Dotan · Birmingham, US
David Barzilai · Hod HaSharon, IL
Itay Khazon · Hod HaSharon, IL

Key dates

Filing date	Sep 24, 2018
Grant date	Sep 17, 2019
Priority date	—
Expiry date	Oct 11, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/84
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.