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Implement CryptoRng for EntropyRng and StdRng #323

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Mar 22, 2018
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Implement CryptoRng for EntropyRng and StdRng #323

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916e693
Implement CryptoRng for EntropyRng and StdRng
pitdicker Mar 22, 2018
0497d30
Re-export BlockRngCore
pitdicker Mar 22, 2018
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4 changes: 3 additions & 1 deletion src/entropy_rng.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@

//! Entropy generator, or wrapper around external generators

use rand_core::{RngCore, Error, impls};
use rand_core::{RngCore, CryptoRng, Error, impls};
use {OsRng, JitterRng};

/// An RNG provided specifically for seeding PRNGs.
Expand Down Expand Up @@ -140,6 +140,8 @@ impl RngCore for EntropyRng {
}
}

impl CryptoRng for EntropyRng {}

#[cfg(test)]
mod test {
use super::*;
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4 changes: 3 additions & 1 deletion src/lib.rs
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Expand Up @@ -270,7 +270,7 @@ extern crate rand_core;
use core::{marker, mem, slice};

// re-exports from rand-core
pub use rand_core::{RngCore, CryptoRng, SeedableRng};
pub use rand_core::{RngCore, BlockRngCore, CryptoRng, SeedableRng};
pub use rand_core::{ErrorKind, Error};

// external rngs
Expand Down Expand Up @@ -865,6 +865,8 @@ impl SeedableRng for StdRng {
}
}

impl CryptoRng for StdRng {}

/// An RNG recommended when small state, cheap initialization and good
/// performance are required. The PRNG algorithm in `SmallRng` is chosen to be
/// efficient on the current platform, **without consideration for cryptography
Expand Down