HDCP DESIGN OF HDCP FOR DISPLAYPORT

摘要

It relates to HDCP technology for DisplayPort. The HDCP system for DisplayPort is connected to the auxiliary channel (AUX) of DisplayPort, which is a display interface, to verify that the transmitter interface and the receiver interface support HDCP (High Definition Contents Protect), and to encrypt and decrypt digital data. An authentication block for sharing an encryption key required for And an encryption block connected to a main link of the display port and encrypting the digital data at the transmitter interface using the encryption key and decrypting the encrypted digital data at the receiver interface. A control unit for controlling the block is configured as a micro controller unit (MCU), and the authentication block includes a control unit interface for receiving a control signal from the MCU and outputting a status signal of the authentication block to the MCU.