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If the sequences are supposed to be perfectly random, you may want to take a look at e.g. the NIST statistical test suite. However, you should be aware that statistical tests don't prove or really even estimate entropy. They are just a sanity check that tells you whether the numbers look random. Non cryptographic PRNGs that are completely predictable can ...


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PRNGs are a difficult and hot topic. Some tests can be found here: What tests can I do to ensure my PRNG is working correctly? But they do not tell you (or others) if your PRNG is really secure. A PRNG must be build in a way, that a third party is not able to "calculate" former or upcoming PRNG output based on some random data from the PRNG.



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