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Terms & Definitions

cryptographically sound random number generator

A cryptographically sound random number generator is a very high quality random number generator that is almost certainly a cryptographically strong random number generator. While the generator lacks a formal proof, there should exist a solid and well reasoned argument for its cryptographic strength.

A cryptographically sound random number generator will pass statistical tests with a very high level of confidence. In fact, sound generators will pass tests at the same confidence level as strong generators. In particular, any standard battery of statistical tests for randomness, when given a statistically significant amount of data, will not be able to distinguish the random number generator from a true random source.

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