Vehicles have more connectivity options now-a-days and these increasing connection options are giving more chances for an intruder to exploit the system. So, the vehicle manufacturers need to make the ECU in the vehicle more secure. To make the system secure, the embedded system must secure all the assets in the system. Examples of assets are Software, Kernel or Operating system, cryptographic Keys, Passwords, user data, etc. In this, securing the Kernel is extremely important as an intruder can even exploit the operating system characteristics just by changing the kernel code without introducing a trojan in the system. Also, the Kernel is the one entity that manages all permissions, so, if the kernel is hacked, these permissions also get compromised. The proposed approach is to make the kernel secure by doing the integrity check periodically of the kernel code loaded into the main memory of the system. This method uses ARM TrustZone technology which reduces the risk of attacks by hardware partition and separating the critical assets related to security. The Arm TrustZone technology protects the security-critical operations by executing them in a trusted execution environment (TEE). The idea to use the ARM TrustZone for the approach is, Kernel security check needs to be done at high privilege level than the Kernel. The kernel privilege level is Exception Level 1 (EL1), and the monitor code has the highest privilege level that is Exception Level 3 (EL3). This proposal can be used in all mid/low automotive ECUs where neither a dedicated hardware controller nor Trusted execution environment (TEE) is available.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Mechanism for Runtime Kernel Integrity Check without Additional IP and without TEE for Low/Mid Automotive Segments


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    WCX SAE World Congress Experience ; 2022



    Erscheinungsdatum :

    2022-03-29




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Mechanism for Runtime Kernel Integrity Check without Additional IP and without TEE for Low/Mid Automotive Segments

    Thekkumbadan, Shyju / Pacharla, Sreedhar Reddy / Jose, Jipin | British Library Conference Proceedings | 2022


    Mechanism for Secure Storage without a Trusted Execution Environment for Low/Mid Automotive Segments

    Ansari, Asadullah / Sana, Iflaha / JOSE, JIPIN et al. | SAE Technical Papers | 2021


    FAULT CHECK WITHOUT SOFTWARE INTERVENTION

    DEWAN KETAN / SCHAEFER JUERGEN | Europäisches Patentamt | 2021

    Freier Zugriff

    Joule-Thomson Expander Without Check Valves

    Chan, C. K. / Gatewood, J. R. | NTRS | 1989


    Autonomous parking system without lane check

    HWANG GYUNG HO / JO YEONG JE / HAN JAE HYEOK et al. | Europäisches Patentamt | 2023

    Freier Zugriff