Add tests for MuSig2 de/serialization

Author: Ademan

src/musig.rs

@@ -1688,4 +1688,21 @@ mod tests {
 
         let _agg_sig = session.partial_sig_agg(&[]);
     }
+
+    #[test]
+    fn de_serialization() {
+        const MUSIG_PUBLIC_NONCE_HEX: &str = "03f4a361abd3d50535be08421dbc73b0a8f595654ae3238afcaf2599f94e25204c036ba174214433e21f5cd0fcb14b038eb40b05b7e7c820dd21aa568fdb0a9de4d7";
+        let pubnonce: PublicNonce = MUSIG_PUBLIC_NONCE_HEX.parse().unwrap();
+
+        assert_eq!(pubnonce.to_string(), MUSIG_PUBLIC_NONCE_HEX);
+
+        const MUSIG_AGGREGATED_NONCE_HEX: &str = "0218c30fe0f567a4a9c05eb4835e2735419cf30f834c9ce2fe3430f021ba4eacd503112e97bcf6a022d236d71a9357824a2b19515f980131b3970b087cadf94cc4a7";
+        let aggregated_nonce: AggregatedNonce = MUSIG_AGGREGATED_NONCE_HEX.parse().unwrap();
+        assert_eq!(aggregated_nonce.to_string(), MUSIG_AGGREGATED_NONCE_HEX);
+
+        const MUSIG_PARTIAL_SIGNATURE_HEX: &str =
+            "289eeb2f5efc314aa6d87bf58125043c96d15a007db4b6aaaac7d18086f49a99";
+        let partial_signature: PartialSignature = MUSIG_PARTIAL_SIGNATURE_HEX.parse().unwrap();
+        assert_eq!(partial_signature.to_string(), MUSIG_PARTIAL_SIGNATURE_HEX);
+    }
 }

tests/serde.rs

@@ -4,9 +4,9 @@ extern crate bincode;
 extern crate secp256k1;
 extern crate serde_cbor;
 
+use secp256k1::{musig, PublicKey, SecretKey, XOnlyPublicKey};
 #[cfg(feature = "global-context")]
 use secp256k1::{Keypair, Secp256k1};
-use secp256k1::{PublicKey, SecretKey, XOnlyPublicKey};
 
 // Arbitrary key data.
 
@@ -35,6 +35,43 @@ static XONLY_PK_BYTES: [u8; 32] = [
     0x4a, 0xc8, 0x87, 0xfe, 0x91, 0xdd, 0xd1, 0x66,
 ];
 
+#[rustfmt::skip]
+static MUSIG_PUBLIC_NONCE_BYTES: [u8; 74] = [
+    0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x03, 0xf4, 0xa3, 0x61, 0xab, 0xd3, 0xd5, 0x05,
+    0x35, 0xbe, 0x08, 0x42, 0x1d, 0xbc, 0x73, 0xb0,
+    0xa8, 0xf5, 0x95, 0x65, 0x4a, 0xe3, 0x23, 0x8a,
+    0xfc, 0xaf, 0x25, 0x99, 0xf9, 0x4e, 0x25, 0x20,
+    0x4c, 0x03, 0x6b, 0xa1, 0x74, 0x21, 0x44, 0x33,
+    0xe2, 0x1f, 0x5c, 0xd0, 0xfc, 0xb1, 0x4b, 0x03,
+    0x8e, 0xb4, 0x0b, 0x05, 0xb7, 0xe7, 0xc8, 0x20,
+    0xdd, 0x21, 0xaa, 0x56, 0x8f, 0xdb, 0x0a, 0x9d,
+    0xe4, 0xd7,
+];
+
+#[rustfmt::skip]
+static MUSIG_AGGREGATED_NONCE_BYTES: [u8; 74] = [
+    0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x02, 0x18, 0xc3, 0x0f, 0xe0, 0xf5, 0x67, 0xa4,
+    0xa9, 0xc0, 0x5e, 0xb4, 0x83, 0x5e, 0x27, 0x35,
+    0x41, 0x9c, 0xf3, 0x0f, 0x83, 0x4c, 0x9c, 0xe2,
+    0xfe, 0x34, 0x30, 0xf0, 0x21, 0xba, 0x4e, 0xac,
+    0xd5, 0x03, 0x11, 0x2e, 0x97, 0xbc, 0xf6, 0xa0,
+    0x22, 0xd2, 0x36, 0xd7, 0x1a, 0x93, 0x57, 0x82,
+    0x4a, 0x2b, 0x19, 0x51, 0x5f, 0x98, 0x01, 0x31,
+    0xb3, 0x97, 0x0b, 0x08, 0x7c, 0xad, 0xf9, 0x4c,
+    0xc4, 0xa7,
+];
+
+#[rustfmt::skip]
+static MUSIG_PARTIAL_SIG_BYTES: [u8; 40] = [
+    0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x28, 0x9e, 0xeb, 0x2f, 0x5e, 0xfc, 0x31, 0x4a,
+    0xa6, 0xd8, 0x7b, 0xf5, 0x81, 0x25, 0x04, 0x3c,
+    0x96, 0xd1, 0x5a, 0x00, 0x7d, 0xb4, 0xb6, 0xaa,
+    0xaa, 0xc7, 0xd1, 0x80, 0x86, 0xf4, 0x9a, 0x99,
+];
+
 fn secret_key() -> SecretKey {
     SecretKey::from_slice(&SK_BYTES).expect("failed to create sk from slice")
 }
@@ -85,3 +122,23 @@ fn cbor() {
     // It also adds a 1-byte length prefix and a byte of metadata for the whole vector.
     assert_eq!(e.len(), 54);
 }
+
+#[test]
+fn musig() {
+    let public_nonce: musig::PublicNonce = bincode::deserialize(&MUSIG_PUBLIC_NONCE_BYTES).unwrap();
+    let ser = bincode::serialize(&public_nonce).unwrap();
+
+    assert_eq!(ser, MUSIG_PUBLIC_NONCE_BYTES);
+
+    let aggregated_nonce: musig::AggregatedNonce =
+        bincode::deserialize(&MUSIG_AGGREGATED_NONCE_BYTES).unwrap();
+    let ser = bincode::serialize(&aggregated_nonce).unwrap();
+
+    assert_eq!(ser, MUSIG_AGGREGATED_NONCE_BYTES);
+
+    let partial_sig: musig::PartialSignature =
+        bincode::deserialize(&MUSIG_PARTIAL_SIG_BYTES).unwrap();
+    let ser = bincode::serialize(&partial_sig).unwrap();
+
+    assert_eq!(ser, MUSIG_PARTIAL_SIG_BYTES);
+}