diff --git a/src/main/java/com/craigraw/drongo/ExtendedPublicKey.java b/src/main/java/com/craigraw/drongo/ExtendedPublicKey.java
index 48888a8..cde44d1 100644
--- a/src/main/java/com/craigraw/drongo/ExtendedPublicKey.java
+++ b/src/main/java/com/craigraw/drongo/ExtendedPublicKey.java
@@ -15,7 +15,7 @@ public class ExtendedPublicKey {
     private static final int bip32HeaderP2WPKHZPub = 0x04B24746; // The 4 byte header that serializes in base58 to "zpub"
     private static final int bip32HeaderP2WHSHPub = 0x2AA7ED3; // The 4 byte header that serializes in base58 to "Zpub"
 
-    private int parentFingerprint;
+    private byte[] parentFingerprint;
     private String keyDerivationPath;
     private DeterministicKey pubKey;
     private String childDerivationPath;
@@ -23,7 +23,7 @@ public class ExtendedPublicKey {
 
     private DeterministicHierarchy hierarchy;
 
-    public ExtendedPublicKey(int parentFingerprint, String keyDerivationPath, DeterministicKey pubKey, String childDerivationPath, ChildNumber pubKeyChildNumber) {
+    public ExtendedPublicKey(byte[] parentFingerprint, String keyDerivationPath, DeterministicKey pubKey, String childDerivationPath, ChildNumber pubKeyChildNumber) {
         this.parentFingerprint = parentFingerprint;
         this.keyDerivationPath = keyDerivationPath;
         this.pubKey = pubKey;
@@ -33,10 +33,14 @@ public class ExtendedPublicKey {
         this.hierarchy = new DeterministicHierarchy(pubKey);
     }
 
-    public int getParentFingerprint() {
+    public byte[] getParentFingerprint() {
         return parentFingerprint;
     }
 
+    public byte[] getFingerprint() {
+        return pubKey.getFingerprint();
+    }
+
     public List<ChildNumber> getKeyDerivation() {
         return parsePath(keyDerivationPath);
     }
@@ -137,7 +141,7 @@ public class ExtendedPublicKey {
         int depth = 5 - childPath.size();
         buffer.put((byte)depth);
 
-        buffer.putInt(parentFingerprint);
+        buffer.put(parentFingerprint);
 
         buffer.putInt(pubKeyChildNumber.i());
 
@@ -156,7 +160,8 @@ public class ExtendedPublicKey {
         }
 
         int depth = buffer.get() & 0xFF; // convert signed byte to positive int since depth cannot be negative
-        final int parentFingerprint = buffer.getInt();
+        byte[] parentFingerprint = new byte[4];
+        buffer.get(parentFingerprint);
         final int i = buffer.getInt();
         ChildNumber childNumber;
         List<ChildNumber> path;
diff --git a/src/main/java/com/craigraw/drongo/crypto/DeterministicKey.java b/src/main/java/com/craigraw/drongo/crypto/DeterministicKey.java
index 88e8645..a4193d6 100644
--- a/src/main/java/com/craigraw/drongo/crypto/DeterministicKey.java
+++ b/src/main/java/com/craigraw/drongo/crypto/DeterministicKey.java
@@ -5,7 +5,6 @@ import com.craigraw.drongo.Utils;
 import com.craigraw.drongo.protocol.Base58;
 import com.craigraw.drongo.protocol.Sha256Hash;
 
-import java.nio.ByteBuffer;
 import java.util.Arrays;
 import java.util.List;
 
@@ -13,7 +12,7 @@ public class DeterministicKey extends ECKey {
     private final DeterministicKey parent;
     private final List<ChildNumber> childNumberPath;
     private final int depth;
-    private int parentFingerprint; // 0 if this key is root node of key hierarchy
+    private byte[] parentFingerprint; // 0 if this key is root node of key hierarchy
 
     /** 32 bytes */
     private final byte[] chainCode;
@@ -27,7 +26,7 @@ public class DeterministicKey extends ECKey {
                             byte[] chainCode,
                             LazyECPoint publicAsPoint,
                             int depth,
-                            int parentFingerprint) {
+                            byte[] parentFingerprint) {
         super(compressPoint(publicAsPoint));
         if(chainCode.length != 32) {
             throw new IllegalArgumentException("Chaincode not 32 bytes in length");
@@ -51,7 +50,7 @@ public class DeterministicKey extends ECKey {
         this.childNumberPath = childNumberPath;
         this.chainCode = Arrays.copyOf(chainCode, chainCode.length);
         this.depth = parent == null ? 0 : parent.depth + 1;
-        this.parentFingerprint = (parent != null) ? parent.getFingerprint() : 0;
+        this.parentFingerprint = (parent != null) ? parent.getFingerprint() : new byte[4];
     }
 
     /**
@@ -64,9 +63,8 @@ public class DeterministicKey extends ECKey {
     }
 
     /** Returns the first 32 bits of the result of {@link #getIdentifier()}. */
-    public int getFingerprint() {
-        // TODO: why is this different than armory's fingerprint? BIP 32: "The first 32 bits of the identifier are called the fingerprint."
-        return ByteBuffer.wrap(Arrays.copyOfRange(getIdentifier(), 0, 4)).getInt();
+    public byte[] getFingerprint() {
+        return Arrays.copyOfRange(getIdentifier(), 0, 4);
     }
 
     /**