diff --git a/.gitignore b/.gitignore
index 13a16a8..ba11f7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,9 @@
 config/
 output/
 out/
-aion.iml
+build/
+pack/
+*.iml
 META-INF
 build/
 pack/
diff --git a/src/org/aion/api/type/core/tx/AbstractTransaction.java b/src/org/aion/api/type/core/tx/AbstractTransaction.java
index 25b77e3..32d4d9a 100644
--- a/src/org/aion/api/type/core/tx/AbstractTransaction.java
+++ b/src/org/aion/api/type/core/tx/AbstractTransaction.java
@@ -115,6 +115,10 @@ public AbstractTransaction(byte[] nonce, Address receiveAddress, byte[] value, b
 //        }
 //    }
 
+    public void setSignature(final ISignature signature) {
+        this.signature = signature;
+    }
+
     public abstract byte[] getEncoded();
 
     public abstract Address getFrom();
diff --git a/src/org/aion/api/type/core/tx/AionTransaction.java b/src/org/aion/api/type/core/tx/AionTransaction.java
index 8011ee3..e602b06 100644
--- a/src/org/aion/api/type/core/tx/AionTransaction.java
+++ b/src/org/aion/api/type/core/tx/AionTransaction.java
@@ -25,11 +25,6 @@
 
 package org.aion.api.type.core.tx;
 
-import static org.aion.base.util.ByteUtil.ZERO_BYTE_ARRAY;
-
-import java.math.BigInteger;
-import java.util.Arrays;
-
 import org.aion.base.type.Address;
 import org.aion.base.util.ByteUtil;
 import org.aion.base.util.TimeInstant;
@@ -41,6 +36,11 @@
 import org.aion.rlp.RLP;
 import org.aion.rlp.RLPList;
 
+import java.math.BigInteger;
+import java.util.Arrays;
+
+import static org.aion.base.util.ByteUtil.ZERO_BYTE_ARRAY;
+
 /**
  * 
  * Aion transaction class.
@@ -178,7 +178,7 @@ public byte[] getHash() {
         return hash;
     }
 
-    private byte[] getRawHash() {
+    public byte[] getRawHash() {
         if (!parsed) {
             rlpParse();
         }
@@ -350,7 +350,7 @@ public String toString(int maxDataSize) {
      * For signatures you have to keep also RLP of the transaction without any
      * signature data
      */
-    private byte[] getEncodedRaw() {
+    public byte[] getEncodedRaw() {
 
         if (!parsed) {
             rlpParse();