Implement CryptoRng for ReseedingRng

Author: pitdicker

src/reseeding.rs

@@ -11,7 +11,7 @@
 //! A wrapper around another PRNG that reseeds it after it
 //! generates a certain number of random bytes.
 
-use rand_core::{RngCore, BlockRngCore, SeedableRng, Error, ErrorKind};
+use rand_core::{RngCore, BlockRngCore, CryptoRng, SeedableRng, Error, ErrorKind};
 use rand_core::impls::BlockRng;
 
 /// A wrapper around any PRNG which reseeds the underlying PRNG after it has
@@ -197,6 +197,10 @@ where R: BlockRngCore<u32> + SeedableRng,
     }
 }
 
+impl<R, Rsdr> CryptoRng for ReseedingRng<R, Rsdr>
+where R: BlockRngCore<u32> + SeedableRng + CryptoRng,
+      Rsdr: RngCore {}
+
 #[cfg(test)]
 mod test {
     use {Rng, SeedableRng};