# rand_os [![Build Status](https://travis-ci.org/rust-random/rand.svg?branch=master)](https://travis-ci.org/rust-random/rand) [![Build Status](https://ci.appveyor.com/api/projects/status/github/rust-random/rand?svg=true)](https://ci.appveyor.com/project/rust-random/rand) [![Latest version](https://img.shields.io/crates/v/rand_os.svg)](https://crates.io/crates/rand_os) [![Book](https://img.shields.io/badge/book-master-yellow.svg)](https://rust-random.github.io/book/) [![API](https://img.shields.io/badge/api-master-yellow.svg)](https://rust-random.github.io/rand/rand_os) [![API](https://docs.rs/rand_os/badge.svg)](https://docs.rs/rand_os) [![Minimum rustc version](https://img.shields.io/badge/rustc-1.22+-lightgray.svg)](https://github.com/rust-random/rand#rust-version-requirements) A random number generator that retrieves randomness straight from the operating system. This crate depends on [rand_core](https://crates.io/crates/rand_core) and is part of the [Rand project](https://github.com/rust-random/rand). This crate aims to support all of Rust's `std` platforms with a system-provided entropy source. Unlike other Rand crates, this crate does not support `no_std` (handling this gracefully is a current discussion topic). Links: - [API documentation (master)](https://rust-random.github.io/rand/rand_os) - [API documentation (docs.rs)](https://docs.rs/rand_os) - [Changelog](CHANGELOG.md) ## License `rand_os` is distributed under the terms of both the MIT license and the Apache License (Version 2.0). See [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT), and [COPYRIGHT](COPYRIGHT) for details.