SafeCAN is a patented ultra-light network security solution that authenticates and encrypts communications between ECUs—with zero network overhead.
SafeCAN validates the sender and data integrity of every message, blocking communication from unauthorized ECUs and physical hacks. SafeCAN also authenticates in-vehicle communications to prevent over-the-air (OTA) malware downloads.
SafeCAN adds zero network overhead by exchanging encryption keys at the factory, unlike solutions that swap keys while the car is running. Other technologies also add network traffic by sending extra validation messages. SafeCAN circumvents this by embedding validation data in the redundant bits of every message—to avoid adding payloads.
SafeCAN is backward compatible so you do not need to make any changes to the ECU application, network protocols or chipset. It is hardware agnostic and requires no changes to the message format. Most importantly, it will not burden your already-saturated car networks.
SafeCAN secures any number and any type of serial data buses, including CAN, LIN, MOST and FlexRay. This is an advantage over solutions that limit security to CANs and critical safety systems. SafeCAN also enables selective security deployment on some but not all ECUs. Plus you can secure communications between different types of buses, unlike NXP solutions that require all ECUs to use the same transceivers across the entire system.
In this white paper, we present an innovative approach for message authentication that overcomes technical barriers. SafeCAN hardens in-vehicle networks against unauthorized activity—with zero overhead.
How does encrypted authentication harden in-vehicle networks? SafeCAN ECUs validate and accept only encrypted data from authorized sources. All other commands are blocked.
Giorgio Scuro, vice president of the Automotive Division at Micron
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