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Subject: xoshiro** edge case (all zeros)
From: sandfox@sandfox.me (Anton Smirnov)

Hi!

Randomness again. Sorry if I just missed some relevant discussion

xoshiro** has a known edge case: all-zero seed

<?php

$engine =3D new \Random\Engine\Xoshiro256StarStar(str_repeat("\0", 32));

while (true) {
    echo hex2bin($engine->generate()), PHP_EOL; // 0000000000000000
}

It should be documented and/or handled

It's only for a string seed, int seed is not affected

--=20
Anton