Bug: 159928678

Clone this repo:
  1. de0ba12 Upgrade getrandom to 0.2.12 am: 1872b3e122 by Jeff Vander Stoep · 2 months ago emu-34-2-dev main master
  2. 1872b3e Upgrade getrandom to 0.2.12 by Jeff Vander Stoep · 2 months ago emu-34-3-release
  3. 60d419e Migrate to cargo_embargo. am: d8f808cb55 am: ab48db18be am: c08417e963 by Andrew Walbran · 5 months ago
  4. 44f3091 Migrate to cargo_embargo. am: d8f808cb55 am: e36f979e28 am: 9ac7c8274f by Andrew Walbran · 5 months ago
  5. c08417e Migrate to cargo_embargo. am: d8f808cb55 am: ab48db18be by Andrew Walbran · 5 months ago


Build Status Crate Documentation Dependency Status Downloads License

A Rust library for retrieving random data from (operating) system sources. It is assumed that the 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 1.36.0 or later.

Platform Support

This crate generally supports the same operating system and platform versions that the Rust standard library does. Additional targets may be supported using pluggable custom implementations.

This means that as Rust drops support for old versions of operating systems (such as old Linux kernel versions, Android API levels, etc) in stable releases, getrandom may create new patch releases (0.N.x) that remove support for outdated platform versions.


The getrandom library is distributed under either of

at your option.


Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.