Fixing p256 to_bytes() bug (#16)

2021-09-29 18:11:50 -07:00
parent bdc5833510
commit 6632f6a771
1 changed files with 4 additions and 1 deletions
@@ -335,7 +335,10 @@ fn hash_to_curve_simple_swu<N: ArrayLength<u8>>(
        }

        fn to_bytes<N: ArrayLength<u8>>(&self) -> GenericArray<u8, N> {
-            GenericArray::clone_from_slice(&self.number.mod_floor(self.f.0).to_bytes_be().1)
+            let val = self.number.mod_floor(self.f.0).to_bytes_be().1;
+            let mut bytes = alloc::vec![0u8; 32 - val.len()];
+            bytes.extend_from_slice(&val);
+            GenericArray::clone_from_slice(&bytes)
        }
    }