Input source authentication system of DVI video processor and realization method thereof
A technology of video processor and authentication system, which is applied in the direction of instruments, static indicators, cathode ray tube indicators, etc., can solve the problems of no detection equipment, etc., and achieve the effect of rigorous and concise algorithm
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[0033] see Figure 4 , the present invention comprises a DVI video processor and a player, the DVI output of the player is used as the input of the video processor, the player and the video processor communicate through a serial port, the video processor has a built-in random number generator, The player regards the video processor as a DVI device and reads its DVI device ID number. The video processor has a built-in random number generator, and the player provides a serial port to read the random number. The player uses the random number read from the video processor to encrypt the ID number of the DVI device, and returns the encrypted data to the video processor through the serial port; the video processor uses the random number sent to the player to decrypt. The device ID of the device is the same as its own device ID, it works fine. Otherwise, it is considered that the DVI input source has been replaced, and the video processor will stop working.
[0034] In actual work...
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