Crate rand_wyrand

This is a library that implements the WyRand PRNG for the RngCore trait from rand. It is completely #![no_std], and does not require the Rust standard library.

WyRand is an extremely fast, stable, and solid PRNG. While not cryptographically secure, it still passes the BigCrush and practrand tests, making it a solid choice for non-secure applications. (Basically, just don’t use it to like, generate cryptographic keys or passwords or whatever)

Examples

Generate random number from 1 to 100

use rand::{Rng, SeedableRng};
use rand_wyrand::WyRand;

let mut wyrand = WyRand::from_entropy();
let mut bytes = [0_u8; 64];
wyrand.fill(&mut bytes);
println!("Random bytes: {bytes:?}");

Generate random bytes

use rand::{Rng, SeedableRng};
use rand_wyrand::WyRand;

let mut wyrand = WyRand::from_entropy();
println!("Random number from 1 to 100: {}", wyrand.gen_range(1..=100));

Generate random string

use rand::{distributions::Alphanumeric, Rng, SeedableRng};
use rand_wyrand::WyRand;

let mut wyrand = WyRand::from_entropy();
let rand_string: String = wyrand
	.sample_iter(&Alphanumeric)
	.take(16)
	.map(char::from)
	.collect();
println!("Random string: {rand_string}")

License

rand-wyrand is licensed under either the Apache License or the MIT License, at your choice.

Structs

WyRand

An instance of the WyRand random number generator.