It is an urgent need for network secure communication to apply Chaos theory to the multimedia signals transmission, and it is one of most advanced and hot research topics internationally.

将混沌学理论应用于多媒体信号的保密通信是网络安全的迫切需要，也是当今世界的前沿课题和研究热点。

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Then, a secure communication link is established between the first computer and a second computer over a computer network based on the enabled secure communication mode of communication.

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The secure communication link is a virtual private network communication link over the computer network in which one or more data values that vary according to a pseudo-random sequence are inserted into each data packet.

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