Bug: 159928678

Clone this repo:
  1. baaf9a5 Make getrandom available to product and vendor am: 175407161c by Matthew Maurer · 3 months ago main master android-u-beta-1-gpl
  2. 1754071 Make getrandom available to product and vendor by Matthew Maurer · 3 months ago
  3. ace1cb2 Update TEST_MAPPING am: 07b355a77e by Jeff Vander Stoep · 4 months ago
  4. 07b355a Update TEST_MAPPING by Jeff Vander Stoep · 4 months ago
  5. 8c8ece2 Update TEST_MAPPING am: aff191e298 by David Brazdil · 4 months ago


Build Status Crate Documentation Dependency Status Downloads License

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.


Add this to your Cargo.toml:

getrandom = "0.2"

Then invoke the getrandom function:

fn get_random_buf() -> Result<[u8; 32], getrandom::Error> {
    let mut buf = [0u8; 32];
    getrandom::getrandom(&mut buf)?;

For more information about supported targets, entropy sources, no_std targets, crate features, WASM support and Custom RNGs see the getrandom documentation and getrandom::Error documentation.

Minimum Supported Rust Version

This crate requires Rust 1.34.0 or later.


The getrandom library is distributed under either of

at your option.