DEVICE AND METHOD FOR SECURING ETHERNET COMMUNICATION

摘要

The present invention relates to a device (1) for transmitting and receiving an Ethernet data frame including raw bits, comprising a physical layer (PHY, 42) for transmitting and receiving the data frame. The device further comprises a hardware component arranged adjacent to the physical layer (PHY, 42). The hardware component (2) is configured to generate a cryptographic checksum (SecTag) based on the raw bits of the data frame and add the cryptographic checksum to the end of data frame so as to form a extended data frame to be transmitted to the PHY and verify the cryptographic checksum (SecTag) in the data frame received from the PHY.