Krull64 Random Number Generator

Sample with Confidence

• High quality, non-cryptographic, medium-fast RNG.
• 64-bit output, 256-bit state.
• 2**128 streams of period 2**128 supporting random access.
• Streams are equidistributed with each 64-bit output appearing 2**64 times.
• Streams are pairwise independent and there are no bad states.
• Trivially seedable from any data up to 128 bits.
• Technically, it is a PCG with a strong output hash designed to decorrelate streams and make use of the full state space.
• No unsafe code and no ´std´ required.

Krull64 is intended as a non-cryptographic workhorse RNG suitable for simulations and procedural content generation that is solid, easy to use, and has a full feature set.

Krull64 will be frozen after a period of testing if no issues are found.

Crate

This crate depends on rand_core, which is a part of the Rand project.

Serde support is opt-in, so enable the serde feature if you need it.

License

MIT