In reality, most random numbers used in computer programs are pseudo-random. They are generated in a predictable fashion using a mathematical formula. They are not random in the way you expect if you're used to dice rolls and lottery drawings. A very powerful computer can identify the algorithms used to generate them. This is fine for many purposes. For TDNs it is unacceptable.

For a production system, a very sophisticated system has to be used. As an example see True random numbers from amplified quantum vacuum

For a production system, a very sophisticated system has to be used. As an example see A prototype can use pseudo-randoms. TDNSYS demo usees a simple design random number generator. It is safe enough to protect against possible sabotage.

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