Add benchmarks

Author: daxpedda

ed448-goldilocks/benches/bench.rs

@@ -1,7 +1,7 @@
 use criterion::{BatchSize, Criterion, criterion_group, criterion_main};
 use ed448_goldilocks::{
-    Decaf448, DecafPoint, DecafScalar, EdwardsPoint, EdwardsScalar, MontgomeryScalar,
-    MontgomeryXpoint, ProjectiveMontgomeryXpoint,
+    Curve448, Decaf448, DecafPoint, DecafScalar, EdwardsPoint, EdwardsScalar, MontgomeryScalar,
+    MontgomeryXpoint, ProjectiveMontgomeryPoint, ProjectiveMontgomeryXpoint,
 };
 use elliptic_curve::group::GroupEncoding;
 use elliptic_curve::{Field, Group};
@@ -130,6 +130,53 @@ pub fn decaf448(c: &mut Criterion) {
     group.finish();
 }
 
+pub fn curve448(c: &mut Criterion) {
+    let mut group = c.benchmark_group("Curve448");
+
+    group.bench_function("scalar multiplication", |b| {
+        b.iter_batched(
+            || {
+                let point = ProjectiveMontgomeryPoint::try_from_rng(&mut OsRng).unwrap();
+                let scalar = MontgomeryScalar::try_from_rng(&mut OsRng).unwrap();
+                (point, scalar)
+            },
+            |(point, scalar)| point * scalar,
+            BatchSize::SmallInput,
+        )
+    });
+
+    group.bench_function("point addition", |b| {
+        b.iter_batched(
+            || {
+                let p1 = ProjectiveMontgomeryPoint::try_from_rng(&mut OsRng).unwrap();
+                let p2 = ProjectiveMontgomeryPoint::try_from_rng(&mut OsRng).unwrap();
+                (p1, p2)
+            },
+            |(p1, p2)| p1 + p2,
+            BatchSize::SmallInput,
+        )
+    });
+
+    group.bench_function("encode_to_curve", |b| {
+        b.iter_batched(
+            || {
+                let mut msg = [0; 64];
+                OsRng.try_fill_bytes(&mut msg).unwrap();
+                msg
+            },
+            |msg| {
+                Curve448::encode_from_bytes::<ExpandMsgXof<Shake256>>(
+                    &[&msg],
+                    &[b"curve448_XOF:SHAKE256_ELL2_NU_"],
+                )
+            },
+            BatchSize::SmallInput,
+        )
+    });
+
+    group.finish();
+}
+
 pub fn x448(c: &mut Criterion) {
     let mut group = c.benchmark_group("X448");