Update to PrimeField::from_repr() changes

Author: daxpedda

Cargo.lock

@@ -16,6 +16,7 @@ members = [
 
 [patch.crates-io]
 digest = { path = "digest" }
+ff = { git = "https://github.com/zkcrypto/ff.git", rev = "8e139e2fb25ab61a5d362394af0a34b10c03d59b" }
 hkdf = { git = "https://github.com/RustCrypto/KDFs.git" }
 hmac = { git = "https://github.com/RustCrypto/MACs.git" }
 sha2 = { git = "https://github.com/RustCrypto/hashes.git" }

Cargo.toml

@@ -104,7 +104,7 @@ impl Field for Scalar {
 
         loop {
             rng.try_fill_bytes(&mut bytes)?;
-            if let Some(scalar) = Self::from_repr(bytes).into() {
+            if let Some(scalar) = Self::from_repr(&bytes).into() {
                 return Ok(scalar);
             }
         }
@@ -149,8 +149,8 @@ impl PrimeField for Scalar {
     const ROOT_OF_UNITY_INV: Self = Self::ZERO; // BOGUS!
     const DELTA: Self = Self::ZERO; // BOGUS!
 
-    fn from_repr(bytes: FieldBytes) -> CtOption<Self> {
-        ScalarPrimitive::from_bytes(&bytes).map(Self)
+    fn from_repr(bytes: &FieldBytes) -> CtOption<Self> {
+        ScalarPrimitive::from_bytes(bytes).map(Self)
     }
 
     fn to_repr(&self) -> FieldBytes {
@@ -898,7 +898,7 @@ mod tests {
     #[test]
     fn round_trip() {
         let bytes = hex!("c9afa9d845ba75166b5c215767b1d6934e50c3db36e89b127b8a622b120f6721");
-        let scalar = Scalar::from_repr(bytes.into()).unwrap();
+        let scalar = Scalar::from_repr(&bytes.into()).unwrap();
         assert_eq!(&bytes, scalar.to_repr().as_slice());
     }
 }

elliptic-curve/src/dev.rs

@@ -293,7 +293,7 @@ mod tests {
     #[test]
     fn mul_by_generator() {
         let scalar = NonZeroScalar::from_repr(
-            hex!("c9afa9d845ba75166b5c215767b1d6934e50c3db36e89b127b8a622b120f6721").into(),
+            &hex!("c9afa9d845ba75166b5c215767b1d6934e50c3db36e89b127b8a622b120f6721").into(),
         )
         .unwrap();
         let point = NonIdentity::<ProjectivePoint>::mul_by_generator(&scalar);

elliptic-curve/src/point/non_identity.rs

@@ -77,7 +77,7 @@ where
     }
 
     /// Decode a [`NonZeroScalar`] from a big endian-serialized field element.
-    pub fn from_repr(repr: FieldBytes<C>) -> CtOption<Self> {
+    pub fn from_repr(repr: &FieldBytes<C>) -> CtOption<Self> {
         Scalar::<C>::from_repr(repr).and_then(Self::new)
     }
 
@@ -419,7 +419,7 @@ where
         let mut bytes = FieldBytes::<C>::default();
 
         if base16ct::mixed::decode(hex, &mut bytes)?.len() == bytes.len() {
-            Self::from_repr(bytes).into_option().ok_or(Error)
+            Self::from_repr(&bytes).into_option().ok_or(Error)
         } else {
             Err(Error)
         }
@@ -465,7 +465,7 @@ mod tests {
     #[test]
     fn round_trip() {
         let bytes = hex!("c9afa9d845ba75166b5c215767b1d6934e50c3db36e89b127b8a622b120f6721");
-        let scalar = NonZeroScalar::from_repr(bytes.into()).unwrap();
+        let scalar = NonZeroScalar::from_repr(&bytes.into()).unwrap();
         assert_eq!(&bytes, scalar.to_repr().as_slice());
     }