Mersenne Twister

Mersenne Twister is a pseudorandom number generator with a very long period of 219937-1.
It has been used in various applications, including programming languages, Linux libraries, and statistical software.
The Mersenne Twister has advantages, such as permissively-licensed and patent-free status, and a long period.
However, it also has disadvantages, such as a relatively large state buffer and mediocre throughput.
The Mersenne Twister exhibits two clear failures in the TestU01 suite, but passes numerous tests for statistical randomness.
The Mersenne Twister is not cryptographically secure unless the CryptMT variant is used.
Alternatives to the Mersenne Twister include WELL, Marsaglia’s xorshift generators, and the ACORN family.

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Мерсенн Твистер — Википедия