Explicitly use NativePRNG for Buggify

[jeremyk-91]

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[carterkozak]

iirc NativePRNG uses a combination of both and is likely already the default, but can be pointed at exclusively /dev/urandom by configuring the jvm with -Djava.security.egd=file:/dev/./urandom. Sorry if I've misremembered, though!

[jeremyk-91]

Ah my bad. Yeah both devices are actually deterministic in their environment - the main thing was to make sure the algorithm selected is one that actually accesses entropy on generating numbers as opposed to only on seeds.

[Sam-Kramer]

Should we just make this a static utility, so we can also use it in the ring workflow and other places we will use random?

[jeremyk-91]

Yeah we can do that. This is fine for the workflows, though note that in general injecting this in other places random is used might be hard (unless we want to put this in atlasdb-commons or something, which I wouldn't commit to unless we know we want to!)