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CAN Message Frame Encryption



Arilou CANcrypt provides vital message encryption for controller area network (CAN) messages frames, enhancing privacy, enabling advanced use-cases, and extending the viability of current and legacy CAN-buses.

  • Private Message Transmission

    Ensures the privacy of CAN messages, preventing snooping
  • Selective Implementation

    Implementation can be tailored for use with only specified messages


Modern in-vehicle networks are becoming increasingly complex. Growing numbers of electronic control units are generating an unprecedented amount of network traffic. This traffic is vulnerable to interception and snooping attacks by hackers who have infiltrated the CAN-bus via compromised ECUs.

In a world where in-vehicle data is becoming increasingly important and valuable to OEMs, both for diagnostics, and for usage analytics, it is necessary to protect this data from prying eyes.

CANcrypt encrypts CAN messages frames, preventing snooping attacks from gaining access to both critical vehicle data and customer information. As in-vehicle use-cases evolve, preventing unauthorized monitoring of network messages becomes increasingly important.


  • Backward Compatibility

    No need to change gateways or non-participating ECUs as frame format remains unchanged
  • Lossless

    No data is lost during the encryption and decryption process
  • Low Latency

    Real-time processing means no significant latency added due to encryption and decryption
  • Network Longevity

    Improved network security extends CAN operative lifetime
  • Software-Based

    No heavy resources required, allowing for the use of legacy and modern CAN architectures, reducing cost
  • Stateless

    Each message frame is independently encrypted, decrypted, and authenticated



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