From e298033cbbfccbda7a42ce9040a063be3d2c108a Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Fri, 3 May 2024 12:16:01 +0200
Subject: [PATCH] add further restriction for checking if keystores can sign a
 psbt input

---
 src/main/java/com/sparrowwallet/drongo/wallet/Keystore.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/sparrowwallet/drongo/wallet/Keystore.java b/src/main/java/com/sparrowwallet/drongo/wallet/Keystore.java
index 19e3fee..7c47553 100644
--- a/src/main/java/com/sparrowwallet/drongo/wallet/Keystore.java
+++ b/src/main/java/com/sparrowwallet/drongo/wallet/Keystore.java
@@ -13,6 +13,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 public class Keystore extends Persistable {
@@ -252,7 +253,7 @@ public class Keystore extends Persistable {
                 }
             }
 
-            if(derivation.size() == 2) {
+            if(derivation.size() == 2 && KeyPurpose.fromChildNumber(derivation.get(0)) != null) {
                 return getPubKey(new WalletNode(KeyDerivation.writePath(derivation)));
             }
         }