Preemptively box encrypted signature to avoid size difference in enum

swap/src/database/alice.rs

@@ -76,7 +76,7 @@ impl From<&AliceState> for Alice {
                 encrypted_signature,
             } => Alice::EncSigLearned {
                 state3: state3.as_ref().clone(),
-                encrypted_signature: encrypted_signature.clone(),
+                encrypted_signature: *encrypted_signature.clone(),
             },
             AliceState::BtcRedeemed => Alice::Done(AliceEndState::BtcRedeemed),
             AliceState::BtcCancelled { state3, .. } => Alice::BtcCancelled(state3.as_ref().clone()),
@@ -135,7 +135,7 @@ impl From<Alice> for AliceState {
                 encrypted_signature,
             } => AliceState::EncSigLearned {
                 state3: Box::new(state),
-                encrypted_signature,
+                encrypted_signature: Box::new(encrypted_signature),
             },
             Alice::CancelTimelockExpired(state3) => AliceState::CancelTimelockExpired {
                 state3: Box::new(state3),

swap/src/protocol/alice/state.rs

@@ -41,7 +41,7 @@ pub enum AliceState {
         state3: Box<State3>,
     },
     EncSigLearned {
-        encrypted_signature: bitcoin::EncryptedSignature,
+        encrypted_signature: Box<bitcoin::EncryptedSignature>,
         state3: Box<State3>,
     },
     BtcRedeemed,

swap/src/protocol/alice/swap.rs

@@ -202,7 +202,7 @@ async fn run_until_internal(
                             Either::Left(_) => AliceState::CancelTimelockExpired { state3 },
                             Either::Right((enc_sig, _)) => AliceState::EncSigLearned {
                                 state3,
-                                encrypted_signature: enc_sig?,
+                                encrypted_signature: Box::new(enc_sig?),
                             },
                         }
                     }
@@ -231,7 +231,7 @@ async fn run_until_internal(
                 let state = match state3.expired_timelocks(bitcoin_wallet.as_ref()).await? {
                     ExpiredTimelocks::None => {
                         match build_bitcoin_redeem_transaction(
-                            encrypted_signature,
+                            *encrypted_signature,
                             &state3.tx_lock,
                             state3.a.clone(),
                             state3.s_a,