Use EcdsaSig in PSBT partial signatures instead of Vec<u8>

Author: dr-orlovsky

src/util/psbt/map/input.rs

@@ -14,7 +14,7 @@
 
 use prelude::*;
 
-use io;
+use ::{EcdsaSig, io};
 
 use blockdata::script::Script;
 use blockdata::transaction::{EcdsaSigHashType, Transaction, TxOut};
@@ -87,9 +87,8 @@ pub struct Input {
     /// including P2SH embedded ones.
     pub witness_utxo: Option<TxOut>,
     /// A map from public keys to their corresponding signature as would be
-    /// pushed to the stack from a scriptSig or witness.
-    #[cfg_attr(feature = "serde", serde(with = "::serde_utils::btreemap_byte_values"))]
-    pub partial_sigs: BTreeMap<PublicKey, Vec<u8>>,
+    /// pushed to the stack from a scriptSig or witness for a non-taproot inputs.
+    pub partial_sigs: BTreeMap<PublicKey, EcdsaSig>,
     /// The sighash type to be used for this input. Signatures for this input
     /// must use the sighash type.
     pub sighash_type: Option<EcdsaSigHashType>,
@@ -163,7 +162,7 @@ impl Map for Input {
             }
             PSBT_IN_PARTIAL_SIG => {
                 impl_psbt_insert_pair! {
-                    self.partial_sigs <= <raw_key: PublicKey>|<raw_value: Vec<u8>>
+                    self.partial_sigs <= <raw_key: PublicKey>|<raw_value: EcdsaSig>
                 }
             }
             PSBT_IN_SIGHASH_TYPE => {
@@ -267,7 +266,7 @@ impl Map for Input {
         }
 
         impl_psbt_get_pair! {
-            rv.push(self.partial_sigs as <PSBT_IN_PARTIAL_SIG, PublicKey>|<Vec<u8>>)
+            rv.push(self.partial_sigs as <PSBT_IN_PARTIAL_SIG, PublicKey>|<EcdsaSig>)
         }
 
         impl_psbt_get_pair! {

src/util/psbt/mod.rs

@@ -477,7 +477,7 @@ mod tests {
                 witness_script: None,
                 partial_sigs: vec![(
                     "0339880dc92394b7355e3d0439fa283c31de7590812ea011c4245c0674a685e883".parse().unwrap(),
-                    vec![8, 5, 4],
+                    "304402204f67e2afb76142d44fae58a2495d33a3419daa26cd0db8d04f3452b63289ac0f022010762a9fb67e94cc5cad9026f6dc99ff7f070f4278d30fbc7d0c869dd38c7fe701".parse().unwrap(),
                 )].into_iter().collect(),
                 bip32_derivation: keypaths.clone(),
                 final_script_witness: Some(vec![vec![1, 3], vec![5]]),