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Technical Paper

Cybersecurity Testing and Validation

2017-03-28
2017-01-1655
We also consider the necessary scope and depth of cybersecurity testing and suggest examples of how this can be related to cybersecurity requirements, goals and integrity levels, as determined by the threat analysis and risk assessment. ...An essential part of an effective cybersecurity engineering process is testing the implementation of a system for vulnerabilities and validating the effectiveness of countermeasures. ...The SAE J3061 Cybersecurity Guidebook for Cyber-Physical Vehicle Systems provides a recommended framework which organizations can use to implement a cybersecurity engineering process, which includes activities such as integration and testing, penetration testing and verification/validation of cybersecurity requirements at the hardware, software and system levels.
Journal Article

Cybersecurity Metrics for Automotive Systems

2021-04-06
2021-01-0138
With the increased need for cybersecurity in automotive systems due to the development of more advanced technologies and corresponding increased threat vectors, coupled with the upcoming International Organization for Standardization and the Society for Automotive Engineers (ISO/SAE) 21434 cybersecurity standard for automotive systems and cybersecurity regulations in The United Nations Economic Commission for Europe World Forum for Harmonization of Vehicle Regulations (UNECE WP.29), it is becoming increasingly important for auto manufacturers and suppliers to have a clear and common understanding and agreement of cybersecurity metrics for the development and deployment of vehicles. ...Cybersecurity for automotive systems is challenging, and one of the major challenges is how to measure this specific system property. ...With the increased need for cybersecurity in automotive systems due to the development of more advanced technologies and corresponding increased threat vectors, coupled with the upcoming International Organization for Standardization and the Society for Automotive Engineers (ISO/SAE) 21434 cybersecurity standard for automotive systems and cybersecurity regulations in The United Nations Economic Commission for Europe World Forum for Harmonization of Vehicle Regulations (UNECE WP.29), it is becoming increasingly important for auto manufacturers and suppliers to have a clear and common understanding and agreement of cybersecurity metrics for the development and deployment of vehicles.
Technical Paper

Integrating Fuzz Testing into the Cybersecurity Validation Strategy

2021-04-06
2021-01-0139
Therefore, modern cybersecurity validation is highly stressed for finding security vulnerabilities and robustness issues early and systematically at every stage of the product development process. ...The integration of a sophisticated fuzz testing program within the overall cybersecurity validation strategy allows for accommodating towards these challenging demands. In this paper, we review a general automotive cybersecurity engineering process containing functional testing, vulnerability scanning and penetration testing, and highlight shortcomings that can be complemented by fuzz testing. ...In this paper, we review a general automotive cybersecurity engineering process containing functional testing, vulnerability scanning and penetration testing, and highlight shortcomings that can be complemented by fuzz testing.
Technical Paper

Automated TARA Framework for Cybersecurity Compliance of Heavy Duty Vehicles

2024-04-09
2024-01-2809
Consequently, rise of this technological trend is bringing forth safety and cybersecurity challenges in form of new threats, hazards and vulnerabilities. As per the recent UN vehicle regulation 155, several risk-based security models and assessment frameworks have been proposed to counter the growing cybersecurity issues, however, the high budgetary cost to develop the tool and train personnel along with high risk of leakage of trade secrets, hinders the automotive manufacturers from adapting these third party solutions. ...As per the recent UN vehicle regulation 155, several risk-based security models and assessment frameworks have been proposed to counter the growing cybersecurity issues, however, the high budgetary cost to develop the tool and train personnel along with high risk of leakage of trade secrets, hinders the automotive manufacturers from adapting these third party solutions.
Technical Paper

Common Vulnerability Considerations as an Integral Part of the Automotive Cybersecurity Engineering Process

2022-10-05
2022-28-0304
To build secure systems of road vehicles, the cybersecurity engineering standard ISO21434[11] suggests the evaluation of vulnerabilities throughout engineering process, such as attack path analysis, system requirement stage, software architecture, design, and implementation and testing phases. ...With my analysis and practices, it is appropriate to include the common vulnerabilities that ought to be an integral part of the automotive cybersecurity engineering process. In this paper, the author would like to provide a list of vulnerabilities that might be a suggestion for threat analysis and risk assessment and propose two solutions that may be adopted directly in the V-model for security-relevant software development.
Technical Paper

An Adaptable Security by Design Approach for Ensuring a Secured Remote Monitoring Teleoperation (RMTO) of an Autonomous Vehicle

2023-04-11
2023-01-0579
The separation of cybersecurity considerations in RMTO is barely considered, as so far, most available research and activities are mainly focused on AV. ...The main focus of this paper is addressing RMTO cybersecurity utilising an adaptable security-by-design approach, although security-by-design is still in the infant state within automotive cybersecurity. ...The main focus of this paper is addressing RMTO cybersecurity utilising an adaptable security-by-design approach, although security-by-design is still in the infant state within automotive cybersecurity. An adaptable security-by-design approach for RMTO covers Security Engineering Life-cycle, Logical Security Layered Concept, and Security Architecture.
Technical Paper

Identification and Verification of Attack-Tree Threat Models in Connected Vehicles

2022-12-22
2022-01-7087
As a result of the ever-increasing application of cyber-physical components in the automotive industry, cybersecurity has become an urgent topic. Adapting technologies and communication protocols like Ethernet and WiFi in connected vehicles yields many attack scenarios. ...Consequently, ISO/SAE 21434 and UN R155 (2021) define a standard and regulatory framework for automotive cybersecurity, Both documents follow a risk management-based approach and require a threat modeling methodology for risk analysis and identification. ...Initially, we transform cybersecurity guidelines to attack trees, and then we use their formal interpretations to assess the vehicle’s design.
Journal Article

Threat/Hazard Analysis and Risk Assessment: A Framework to Align the Functional Safety and Security Process in Automotive Domain

2021-12-17
2021-01-0148
The underlying systems are susceptible to safety and cybersecurity attacks as the involved ECUs are interconnected. The security attacks can lead to disrupting the safe operation of the vehicle while causing injury to the passengers. ...Consequently, the functional safety requirements and cybersecurity requirements can be aligned with each other. In this article, a case study of the application of the THARA framework is presented through the risk analysis of safety and security threats applicable to the rearview camera (RVC) feature of the vehicle.
Technical Paper

Integrating Functional and Component-Level Threat Analyses in Automotive Systems: A Holistic Approach to Risk Assessment

2024-04-09
2024-01-2797
This method's detailed approach ensures that cybersecurity requirements can be readily implemented as a part of feature design, addressing the concerns of feature owners directly. ...This paper will discuss the merits of asset based approach to cybersecurity over attack based recognizing the inherent strengths and limitations of both methods and underscores the need for a unified approach.
Technical Paper

Event-Triggered Robust Control of an Integrated Motor-Gearbox Powertrain System for a Connected Vehicle under CAN and DOS-Induced Delays

2020-02-24
2020-01-5016
This paper deals with an integrated motor-transmission (IMT) speed tracking control of the connected vehicle when there are controller area network (CAN)-induced delays and denial of service (DOS)-induced delays. A connected vehicle equipped with an IMT system may be attacked through the external network. Therefore, there are two delays on the CAN of the connected vehicle, which are CAN-induced and cyber-attack delays. A DOS attack generates huge delays in CAN and even makes the control system invalid. To address this problem, a robust dynamic output-feedback controller of the IMT speed tracking system considering event-triggered detectors resisting CAN-induced delays and DOS-induced delays is designed. The event-triggered detector is used to reduce the CAN-induced network congestion with appropriate event trigger conditions on the controller input and output channels. CAN-induced delays and DOS-induced delays are modeled by polytopic inclusions using the Taylor series expansion.
Technical Paper

Cyber Security Approval Criteria: Application of UN R155

2024-07-02
2024-01-2983
The UN R155 regulation is the first automotive cyber security regulation and has made security a mandatory approval criterion for new vehicle types. This establishes internationally harmonized security requirements for market approval. As a result, the application of the regulation presents manufacturers and suppliers with the challenge of demonstrating compliance. At process level the implementation of a Cyber Security Management System (CSMS) is required while at product level, the Threat Assessment and Risk Analysis (TARA) forms the basis to identify relevant threats and corresponding mitigation strategies. Overall, an issued type approval is internationally recognized by the member states of the UN 1958 Agreement. International recognition implies that uniform assessment criteria are applied to demonstrate compliance and to decide whether security efforts are sufficient.
Journal Article

Threat Analysis and Risk Assessment in Automotive Cyber Security

2013-04-08
2013-01-1415
The process of hazard analysis and risk assessment (H&R or HARA) is well-established in standards and methods for functional safety, such as the automotive functional safety standard ISO 26262. Considering the parallel discipline of cyber security, it is necessary to establish an analogous process of threat analysis and risk assessment (T&R) in order to identify potential security attacks and the risk associated with these attacks if they were successful. While functional safety H&R processes could be used for threat analysis, these methods need extension and adaptation to the cyber security domain. This paper describes how such a method has been developed based on the approach described in ISO 26262 and the related MISRA Safety Analysis Guidelines. In particular key differences are described in the understanding of the severity of a security attack, and the factors that contribute to the probability of a successful attack.
Technical Paper

Integrating Fuzz Testing into a CI Pipeline for Automotive Systems

2022-03-29
2022-01-0117
With the rapid development of connected and autonomous vehicles, more sophisticated automotive systems running large portions of software and implementing a variety of communication interfaces are being developed. The ever-expanding codebase increases the risk for software vulnerabilities, while at the same time the large number of communication interfaces make the systems more susceptible to be targeted by attackers. As such, it is of utmost importance for automotive organizations to identify potential vulnerabilities early and continuously in the development lifecycle in an automated manner. In this paper, we suggest a practical approach for integrating fuzz testing into a Continuous Integration (CI) pipeline for automotive systems. As a first step, we have performed a Threat Analysis and Risk Assessment (TARA) of a general E/E architecture to identify high-risk interfaces and functions.
Technical Paper

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

2022-03-29
2022-01-0126
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.
Technical Paper

Functional Verification and Validation of Secure Controller Area Network (CAN) Communication

2022-03-29
2022-01-0110
In agriculture industry, increasing use of Vehicle Internet of Things (IoT), telematics and emerging technologies are resulting in smarter machines with connected solutions. Inter and Intra Communication with vehicle to vehicle and inside vehicle - Electronic Control Unit (ECU) to ECU or ECU (Electronic Control Unit) to sensor, requirement for flow of data increased in-turn resulting in increased need for secure communication. In this paper, we focus on functional verification and validation of secure Controller Area Network (CAN) for intra vehicular communication to establish confidentiality, integrity, authenticity, and freshness of data, supporting safety, advanced automation, protection of sensitive data and IP (Intellectual Property) protection. Network security algorithms and software security processes are the layers supporting to achieve our cause.
Technical Paper

Technical Trends of the Intelligent Connected Vehicle and Development Stage Division for Freeway Traffic Control

2020-12-30
2020-01-5134
It is deemed that currently the intelligent connected vehicle (ICV) is in its early stage of development, and it will go through multiple development stages in the future to realize its final goal—autonomous driving. Based on the existing ICV researches, this paper believes that ICV can be used to improve the efficiency and safety of freeway. The current research of ICV has two main directions: one focuses on the traffic flow characteristics of vehicles with different attributes, the other is concerned with using ICV to reduce congestion. From the policies issued by countries around the world and the development plans promoted by major vehicle manufacturers, the future development trends and challenges of ICV are analyzed. ICV must overcome all the shortcomings to achieve its final goal, including insufficient hardware capabilities or excessive cost, and the degree of intelligence that needs to be improved.
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