Add a comment for Signature deserialization

nucypher · Mar 18, 2021 · 1e3ad49 · 1e3ad49
1 parent 960928c
commit 1e3ad49
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/umbral-pre/src/curve.rs b/umbral-pre/src/curve.rs
@@ -168,6 +168,8 @@ impl SerializableToArray for Signature {
     }
 
     fn from_array(arr: &GenericArray<u8, Self::Size>) -> Option<Self> {
+        // Note that it will not normalize `s` automatically,
+        // and if it is not normalized, verification will fail.
         BackendSignature::<CurveType>::from_bytes(arr.as_slice())
             .ok()
             .map(Self)