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// 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. | ||
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use super::OsRngImpl; | ||
use Error; | ||
use rdrand::RdRand; | ||
use rand_core::RngCore; | ||
use std::fmt::{Debug, Formatter, Result as FmtResult}; | ||
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#[derive(Clone)] | ||
pub struct OsRng{ | ||
gen: RdRand | ||
} | ||
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impl OsRngImpl for OsRng { | ||
fn new() -> Result<OsRng, Error> { | ||
let rng = RdRand::new()?; | ||
Ok(OsRng{ gen: rng }) | ||
} | ||
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fn fill_chunk(&mut self, dest: &mut [u8]) -> Result<(), Error> { | ||
self.gen.try_fill_bytes(dest) | ||
} | ||
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fn method_str(&self) -> &'static str { "RDRAND" } | ||
} | ||
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impl Debug for OsRng { | ||
fn fmt(&self, f: &mut Formatter) -> FmtResult { | ||
f.debug_struct("OsRng") | ||
.finish() | ||
} | ||
} |