NXP Announces New CAN Transceiver Product Family
Published2018.02.02 08:00NXP has announced a new secure transceiver product family for CAN communication. The new transceiver provides a solution and does not require separate software or encryption.
CAN networks used for electronic control unit (ECU) connections are being installed in all vehicles and are expected to remain a key network for the next decade. Additionally, as automotive electronic content continues to increase, the volume of real-time data exchanged through CAN networks is expected to continue growing.
As a multi-point connection network, CAN data communication in vehicles has been conducted in an unsecured environment to date, making it possible to access all connected control devices through a single compromised ECU. Solutions currently on the market protect CAN communication using message authentication codes (MAC) based on encryption and complex key management. However, this approach entails challenges including increased CAN bus load, message latency delays, and computer power consumption.
Existing ECU designs have made it difficult to implement upgrades necessary to support secure CAN messages when processors lack sufficient computing power. However, with secure CAN transceivers, automotive manufacturers can protect ECU messages already used in their designs, enabling them to establish a secure environment more simply and quickly than upgrading existing ECU designs.
The transceiver-based solution for CAN networks developed by NXP is designed to provide efficient security without bandwidth overhead, latency, or process load. This approach complements encryption-based security solutions by adding an additional layer to the Defense-in-Depth concept or providing a standalone option.
Jens Hinrichsen, Senior Vice President of NXP Semiconductors Automotive Business, stated, "NXP's secure CAN transceiver demonstrates a significantly different approach from existing technologies. As vehicles become increasingly complex, it achieves higher efficiency while consuming fewer key system resources."
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