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Updated: Jul 20, 2025

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Protecting SOME/IP Communication via Authentication Ticket.

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Summary

This study introduces a security method for SOME/IP communication in AUTOSAR using an authentication server and tickets to prevent man-in-the-middle attacks, ensuring reliable and scalable automotive data exchange.

Keywords:
SOME/IPauthentication ticketautomotive Ethernetin-vehicle networksecurity

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Area of Science:

  • Automotive Engineering
  • Network Security
  • Embedded Systems

Background:

  • Scalable service-Oriented MiddlewarE over IP (SOME/IP) is an AUTOSAR standard protocol for automotive Ethernet communication.
  • Existing SOME/IP implementations lack security, making them vulnerable to attacks like man-in-the-middle (MITM).
  • Research has highlighted significant security vulnerabilities in the SOME/IP protocol.

Purpose of the Study:

  • To propose a robust security method for SOME/IP communication.
  • To mitigate the prevalent SOME/IP man-in-the-middle (MITM) attack.
  • To ensure secure and reliable data exchange in automotive systems.

Main Methods:

  • Implementation of an authentication server (AS) for issuing tickets.
  • Utilizing tickets to authenticate and authorize SOME/IP communication between nodes.
  • Designing a lightweight and scalable security solution compatible with existing SOME/IP.

Main Results:

  • The proposed method effectively mitigates SOME/IP MITM attacks through authenticated communication.
  • Reliable data transfer is achieved between service-providing and consuming nodes via AS-issued tickets.
  • The solution demonstrates operational efficiency, scalability, and freshness guarantees.

Conclusions:

  • The authentication server and ticket-based approach provides a viable security enhancement for SOME/IP.
  • This method offers a practical solution for securing automotive Ethernet communication within AUTOSAR.
  • The proposed protection method ensures interoperability while enhancing the security posture of SOME/IP.