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A CAN-Bus Lightweight Authentication Scheme.

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Summary
This summary is machine-generated.

This study introduces a new security method for the Controller Area Network (CAN bus) to prevent cyberattacks like spoofing and replay attacks. The approach enhances vehicle safety without compromising the CAN bus

Keywords:
CAN busmessage authentication codeone-time password

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Area of Science:

  • Automotive Cybersecurity
  • In-Vehicle Networking
  • Embedded Systems Security

Background:

  • The Controller Area Network (CAN bus) architecture lacks inherent security features, making it vulnerable to various cyberattacks.
  • Existing security solutions often modify CAN bus frame transmission, increasing computational load and compromising real-time performance.
  • Attacks such as eavesdropping, replay, spoofing, and denial-of-service pose significant risks to driving safety.

Purpose of the Study:

  • To propose a novel method addressing both security vulnerabilities and compatibility issues in CAN bus systems.
  • To enhance the security of CAN bus communications against common attack vectors without disrupting existing protocols.
  • To provide a solution that maintains the delay guarantee feature crucial for real-time control applications.

Main Methods:

  • Implementation of simple and efficient frame authentication algorithms to detect and prevent unauthorized frame modifications.
  • Development of a security enhancement compatible with both the original CAN bus and the CAN with Flexible Data-Rate (CAN-FD) protocols.
  • Focus on minimizing computational overhead to ensure compatibility and maintain performance characteristics.

Main Results:

  • The proposed method effectively prevents spoofing and replay attacks through robust frame authentication.
  • Compatibility with both CAN bus and CAN-FD protocols is achieved, allowing for seamless integration.
  • The solution demonstrates a lower operand count compared to existing security enhancement methods, indicating improved efficiency.

Conclusions:

  • The developed method offers a viable solution to enhance CAN bus security without sacrificing performance or compatibility.
  • This approach contributes to improving the overall safety and integrity of electronic control unit communications in vehicles.
  • The efficiency and compatibility make it a practical choice for securing current and future automotive networks.