tRNG is a random number generator that uses noise sampled by the soundcard to produce high-quality random data. The program is available both as command-line executable or C++ library. Both are open-source and their use is free for non-commercial use.

Data produced by tRNG passes all the tests in the RaBiGeTe 2 and DieHard batteries.

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tRNG (Sourceforge.net)
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