| 摘要 |
A data retransmission device and method are provided that can simultaneously implement link protection and internal protection without increasing design complexity and cost. A data retransmission device for encrypting input data and retransmitting the encrypted data to a predetermined device includes an input data processing unit receiving the input data, coding the input data in a format suitable for the predetermined device, and encrypting the input data with a common key to be shared with the predetermined device, and a link protection unit receiving the encrypted input data from the input data processing unit via a predetermined bus and retransmitting the received data to the predetermined device. In addition, the common key is created in the link protection unit and transmitted to the input data processing unit via the predetermined bus. |
