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README.md
getrandom
A Rust library for retrieving random data from (operating) system source. It is
assumed that system always provides high-quality cryptographically secure random
data, ideally backed by hardware entropy sources. This crate derives its name
from Linux's getrandom function, but is cross platform, roughly supporting
the same set of platforms as Rust's std lib.
This is a low-level API. Most users should prefer using high-level random-number
library like rand.
Usage
Add this to your Cargo.toml:
[dependencies]
getrandom = "0.1"
Then invoke the getrandom function:
fn get_random_buf() -> Result<[u8; 32], getrandom::Error> {
let mut buf = [0u8; 32];
getrandom::getrandom(&mut buf)?;
buf
}
Features
This library is no_std compatible, but uses std on most platforms.
The log library is supported as an optional dependency. If enabled, error
reporting will be improved on some platforms.
For WebAssembly (wasm32), WASI and Emscripten targets are supported directly; otherwise
one of the following features must be enabled:
Minimum Supported Rust Version
This crate requires Rust 1.32.0 or later.
License
The getrandom library is distributed under either of
at your option.