Security Onboard Communication (SecOC) is a standard proposed by the AUTOSAR organization to ensure secure communication between ECUs, primarily including MAC-based authentication and Freshness-based replay attack prevention.

• Fully compliant with Autosar 4.4 and R20-11 standards

• Utilizes MAC-based authentication and Freshness-based replay attack prevention. The sender appends the Freshness Value and MAC to the end of the transmitted data. Upon receiving the data, the receiver uses the Freshness Value and MAC to verify it. Only if the verification is successful is the data packet considered trustworthy.

• Supports three profiles

  ·Profile 1: 24Bit-CMAC-8Bit-FV

  ·Profile 2: 24Bit-CMAC-No-FV

  ·Profile 3: 48Bit-CMAC-16Bit-FV