move rng to constructor

Author: Shourya742

sv2/noise-sv2/benches/handshake.rs

@@ -20,17 +20,16 @@ fn bench_nx_handshake(c: &mut Criterion) {
     group.bench_function("step_1_responder", |b| {
         b.iter_batched(
             || {
-                let responder_key = generate_key_with_rng(&mut rng());
+                let mut rng = rng();
+                let responder_key = generate_key_with_rng(&mut rng);
                 let mut initiator = Initiator::new(None);
                 let responder = Responder::new(responder_key, 60);
 
                 let msg_0 = initiator.step_0().unwrap();
-                (responder, msg_0)
+                (responder, msg_0, rng)
             },
-            |(mut responder, msg_0)| {
-                let _ = responder
-                    .step_1_with_now_rng(msg_0, 10, &mut rng())
-                    .unwrap();
+            |(mut responder, msg_0, mut rng)| {
+                let _ = responder.step_1_with_now_rng(msg_0, 10, &mut rng).unwrap();
             },
             BatchSize::SmallInput,
         );
@@ -39,14 +38,13 @@ fn bench_nx_handshake(c: &mut Criterion) {
     group.bench_function("step_2_initiator", |b| {
         b.iter_batched(
             || {
-                let responder_key = generate_key_with_rng(&mut rng());
+                let mut rng = rng();
+                let responder_key = generate_key_with_rng(&mut rng);
                 let mut initiator = Initiator::new(None);
                 let mut responder = Responder::new(responder_key, 60);
 
                 let msg_0 = initiator.step_0().unwrap();
-                let (msg_2, _) = responder
-                    .step_1_with_now_rng(msg_0, 10, &mut rng())
-                    .unwrap();
+                let (msg_2, _) = responder.step_1_with_now_rng(msg_0, 10, &mut rng).unwrap();
 
                 (initiator, msg_2)
             },
@@ -60,16 +58,15 @@ fn bench_nx_handshake(c: &mut Criterion) {
     group.bench_function("handshake", |b| {
         b.iter_batched(
             || {
-                let responder_key = generate_key_with_rng(&mut rng());
+                let mut rng = rng();
+                let responder_key = generate_key_with_rng(&mut rng);
                 let initiator = Initiator::new(None);
                 let responder = Responder::new(responder_key, 60);
-                (initiator, responder)
+                (initiator, responder, rng)
             },
-            |(mut initiator, mut responder)| {
+            |(mut initiator, mut responder, mut rng)| {
                 let msg_0 = initiator.step_0().unwrap();
-                let (msg_2, _) = responder
-                    .step_1_with_now_rng(msg_0, 10, &mut rng())
-                    .unwrap();
+                let (msg_2, _) = responder.step_1_with_now_rng(msg_0, 10, &mut rng).unwrap();
                 let _ = initiator.step_2_with_now(msg_2, 10).unwrap();
             },
             BatchSize::SmallInput,