Add benchmarks with blake2b.

src/ed25519.rs

@@ -495,6 +495,8 @@ mod test {
 
 #[cfg(all(test, feature = "bench"))]
 mod bench {
+    use blake2::Blake2b;
+    use digest::Digest;
     use generic_array::GenericArray;
     use generic_array::typenum::{U64, U128};
     use test::Bencher;
@@ -566,4 +568,30 @@ mod bench {
 
         b.iter(| | Keypair::generate::<Sha512>(&mut rng));
     }
+
+    #[bench]
+    fn blake2b_sign(b: &mut Bencher) {
+        let mut cspring: OsRng = OsRng::new().unwrap();
+        let keypair: Keypair = Keypair::generate::<Blake2b>(&mut cspring);
+        let msg: &[u8] = "".as_bytes();
+
+        b.iter(| | keypair.sign::<Blake2b>(msg));
+    }
+
+    #[bench]
+    fn blake2b_verify(b: &mut Bencher) {
+        let mut cspring: OsRng = OsRng::new().unwrap();
+        let keypair: Keypair = Keypair::generate::<Blake2b>(&mut cspring);
+        let msg: &[u8] = "".as_bytes();
+        let sig: Signature = keypair.sign::<Blake2b>(msg);
+
+        b.iter(| | keypair.verify::<Blake2b>(msg, &sig));
+    }
+
+    #[bench]
+    fn blake2b_key_generation(b: &mut Bencher) {
+        let mut rng: ZeroRng = ZeroRng::new();
+
+        b.iter(| | Keypair::generate::<Blake2b>(&mut rng));
+    }
 }

src/lib.rs

@@ -131,6 +131,10 @@ extern crate test;
 #[cfg(test)]
 extern crate rustc_serialize;
 
+#[cfg(all(test, feature = "bench"))]
+extern crate blake2;
+
+
 mod ed25519;
 
 // Export everything public in ed25519.