CAN Bus Transmission Security, AUTOSAR SecOC & Anti-Replay Engine

Hardening in-vehicle networks against spoofing, replay, and masquerade attacks with hardware-accelerated AUTOSAR SecOC, AES-128 CMAC authentication, and synchronization.

Engineering Specifications

AUTOSAR Secure Onboard Communication (SecOC): AES-128 CMAC and Truncation Strategies

Standardizing cryptographic message authentication across CAN-FD frames to guarantee payload integrity, sender authenticity, and non-repudiation.

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Freshness Value Management (FVM): Anti-Replay Counter Synchronization over CAN-FD

Defeating replay attacks using multi-tier monotonic freshness counters and trip-counter synchronization across distributed vehicle nodes.

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HSM-Assisted Hardware MAC Generation & Verification at Line Rate (5 Mbps)

Leveraging dedicated on-chip Hardware Security Modules (EVITA Medium) to verify hundreds of authenticated frames per second without CPU degradation.

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Automotive Engineering Research Whitepapers

Defense-in-Depth Against Frame Spoofing, Denial-of-Service & Bus-Off Attacks on CAN Networks

By Dr. Viktor Reinhardt, Automotive Cybersecurity Fellow • August 2026

Empirical penetration testing of vehicular bus injection vectors and the rigorous validation of SecOC cryptographic countermeasures.

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Optimizing Truncated MAC Lengths (24-bit vs 32-bit) for Minimal Bus Load without Sacrificing Security

By Sarah Lin, Senior Cryptographic Systems Engineer • July 2026

Balancing cryptographic collision resistance against CAN-FD frame payload efficiency in high-frequency drivetrain applications.

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