oops, should return bytes

src/lib.rs

@@ -76,7 +76,7 @@ impl From<U256> for Secret {
 pub struct SharedSecret([u8; 32]);
 
 impl SharedSecret {
-    pub fn derive_key<T: Fn([u8; 32]) -> [u32; 8]>(self, deriver: T) -> [u32; 8] {
+    pub fn derive_key<T: Fn([u8; 32]) -> [u8; 32]>(self, deriver: T) -> [u8; 32] {
         deriver(self.0)
     }
 }