Design and Implement of a decrypting Video System Client Based on USB

Aiming at the development of wireless real time video receiving equipment based on USB,This article introduces a design-ing project which is that transmitting datum by the USB interface and the security of transmission and storage of the datum can be ensured by encrypting video and audio datum in Linux server and decrypting datum in Windows client. In the video configuration part of client,the paper specially defines a structure and several commands and types to achieve the function of video configuration. And in the part of local player,the paper designs a decrypting filter to play the transcribed files in the hard disk. There is wide ap-plication foreground to this video monitor system.