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.
Calculating AES-128 CMAC in software takes 150-300 microseconds on a standard automotive MCU—far too slow for a 10ms chassis control loop.
CAN Tx Sec interfaces directly with on-chip Hardware Security Modules (HSM) such as Infineon AURIX HSM or NXP HSE. The cryptographic coprocessor executes the AES algorithm in hardware in under 12 microseconds. Cryptographic keys never leave the secure boundary of the HSM, preventing key extraction even if the application core is compromised.