Patent · US Active

In-place authentication scheme for securing intra-vehicle communication

US10972441B2 · kind B2 · utility

0Cited by

5References

21Claims

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	Jan 24, 2019
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Aug 30, 2039

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.