release: 1.0.0 (#12)

- Deduplicate serialization with impl_serde_scalar, impl_serde_elem, and impl_serde_scalar_elem macros
- Move finalize_after_unblind to common.rs, shared by OPRF and VOPRF
- Add shared test helpers (test_all_curves macro, prf function)
- Update dependencies to stable releases

Reviewed-on: #12
Co-authored-by: UneBaguette <[email protected]>
Co-committed-by: UneBaguette <[email protected]>

src/tests/helpers.rs

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: MIT OR Apache-2.0
+// Copyright (c) VexaHub and contributors.
+
+use core::iter;
+
+use digest::Output;
+
+use crate::common::{Dst, Mode, STR_HASH_TO_GROUP, finalize_after_unblind};
+use crate::{CipherSuite, Group};
+
+pub(crate) fn prf<CS: CipherSuite>(
+    input: &[u8],
+    key: <CS::Group as Group>::Scalar,
+    mode: Mode,
+) -> Output<CS::Hash> {
+    let dst = Dst::new::<CS, _>(STR_HASH_TO_GROUP, mode);
+    let point = CS::Group::hash_to_curve::<CS::Hash>(&[input], &dst.as_dst()).unwrap();
+
+    let res = point * &key;
+
+    finalize_after_unblind::<CS, _, _>(iter::once((input, res)))
+        .next()
+        .unwrap()
+        .unwrap()
+}

src/tests/macros.rs

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: MIT OR Apache-2.0
+// Copyright (c) VexaHub and contributors.
+
+macro_rules! test_all_curves {
+    ($($test_fn:ident),+ $(,)?) => {
+        #[test]
+        fn test_functionality() -> $crate::Result<()> {
+            #[cfg(feature = "ristretto255")]
+            {
+                $( $test_fn::<$crate::Ristretto255>(); )+
+            }
+            $( $test_fn::<::p256::NistP256>(); )+
+            $( $test_fn::<::p384::NistP384>(); )+
+            $( $test_fn::<::p521::NistP521>(); )+
+            Ok(())
+        }
+    };
+}
+
+pub(crate) use test_all_curves;

src/tests/mod.rs

@@ -3,6 +3,11 @@
 // Copyright (c) Meta Platforms, Inc. and affiliates.
 
 mod cfrg_vectors;
+mod macros;
 mod mock_rng;
 mod parser;
 mod test_cfrg_vectors;
+
+pub(crate) mod helpers;
+
+pub(crate) use macros::test_all_curves;