diff --git a/src/lib.rs b/src/lib.rs
index ee1aa9b..68b94b7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,23 +1,5 @@
 pub mod algorithm;
 pub mod data;
+pub mod task;
 
-use pbkdf2::pbkdf2_hmac;
-use sha2::Sha256;
-
-const DUMMY_SALT: &[u8] = b"some dummy salt";
-
-pub struct Task {
-	data: &'static [u8],
-	cost: u32,
-}
-
-impl Task {
-	pub fn new(data: &'static [u8], cost: u32) -> Self {
-		Self { data, cost }
-	}
-
-	pub fn execute(&self) {
-		let mut key1 = [0u8; 20];
-		pbkdf2_hmac::<Sha256>(self.data, DUMMY_SALT, self.cost, &mut key1);
-	}
-}
+pub use task::Task;
diff --git a/src/task.rs b/src/task.rs
new file mode 100644
index 0000000..8fac2b2
--- /dev/null
+++ b/src/task.rs
@@ -0,0 +1,21 @@
+use pbkdf2::pbkdf2_hmac;
+use sha2::Sha256;
+
+const DUMMY_SALT: &[u8] = b"some dummy salt";
+
+#[derive(Clone, Debug)]
+pub struct Task {
+	pub data: &'static [u8],
+	pub cost: u32,
+}
+
+impl Task {
+	pub fn new(data: &'static [u8], cost: u32) -> Self {
+		Self { data, cost }
+	}
+
+	pub fn execute(&self) {
+		let mut key1 = [0u8; 20];
+		pbkdf2_hmac::<Sha256>(self.data, DUMMY_SALT, self.cost, &mut key1);
+	}
+}