diff --git a/src/main.nr b/src/lib.nr
similarity index 90%
rename from src/main.nr
rename to src/lib.nr
index 95e1f35..7727215 100644
--- a/src/main.nr
+++ b/src/lib.nr
@@ -4,11 +4,11 @@ use dep::keccak256::constants;
 
 mod secp256k1;
 
-fn main(
+fn ecrecover(
     pub_key_x: [u8; 32],
     pub_key_y: [u8; 32],
     signature: [u8; 64], // clip v value
-    hashed_message: pub [u8; 32]
+    hashed_message: [u8; 32]
 ) -> pub Field {
     let key = secp256k1::PubKey::new(pub_key_x, pub_key_y);
 
@@ -17,13 +17,13 @@ fn main(
 }
 
 // #[test]
-// fn test_main() {
+// fn test_ecrecover() {
 //     let pub_key_x = [131, 24, 83, 91, 84, 16, 93, 74, 122, 174, 96, 192, 143, 196, 95, 150, 135, 24, 27, 79, 223, 198, 37, 189, 26, 117, 63, 167, 57, 127, 237, 117];
 //     let pub_key_y = [53, 71, 241, 28, 168, 105, 102, 70, 242, 243, 172, 176, 142, 49, 1, 106, 250, 194, 62, 99, 12, 93, 17, 245, 159, 97, 254, 245, 123, 13, 42, 165];
 //     let signature = [57, 17, 112, 239, 241, 30, 64, 157, 170, 50, 85, 145, 156, 69, 226, 85, 147, 164, 10, 82, 71, 93, 42, 132, 200, 220, 161, 255, 95, 241, 211, 141, 81, 7, 150, 25, 25, 27, 162, 213, 80, 61, 12, 170, 50, 4, 154, 203, 252, 229, 119, 29, 202, 153, 50, 25, 126, 145, 245, 23, 136, 75, 29, 177];
 //     let hashed_message = [13, 82, 120, 60, 76, 186, 215, 235, 175, 126, 185, 67, 252, 100, 143, 82, 130, 165, 32, 112, 68, 47, 193, 141, 141, 209, 109, 219, 47, 203, 175, 102];
 
-//     let addr = main(pub_key_x, pub_key_y, signature, hashed_message);
+//     ecrecover(pub_key_x, pub_key_y, signature, hashed_message);
 
 //     constrain addr == 0xe5c6169ca7a4533a0b3123e29d1efdcc38e15c67; //should be 0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266;
 // }