| // Copyright 2018 Developers of the Rand project. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // https://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use super::OsRngImpl; |
| use Error; |
| use rdrand::RdRand; |
| use rand_core::RngCore; |
| use std::fmt::{Debug, Formatter, Result as FmtResult}; |
| |
| #[derive(Clone)] |
| pub struct OsRng{ |
| gen: RdRand |
| } |
| |
| impl OsRngImpl for OsRng { |
| fn new() -> Result<OsRng, Error> { |
| let rng = RdRand::new()?; |
| Ok(OsRng{ gen: rng }) |
| } |
| |
| fn fill_chunk(&mut self, dest: &mut [u8]) -> Result<(), Error> { |
| self.gen.try_fill_bytes(dest) |
| } |
| |
| fn method_str(&self) -> &'static str { "RDRAND" } |
| } |
| |
| impl Debug for OsRng { |
| fn fmt(&self, f: &mut Formatter) -> FmtResult { |
| f.debug_struct("OsRng") |
| .finish() |
| } |
| } |