diff --git a/src/main/java/packet/MINPacket.java b/src/main/java/packet/MINPacket.java
index 94825da..22a2b6c 100644
--- a/src/main/java/packet/MINPacket.java
+++ b/src/main/java/packet/MINPacket.java
@@ -3,19 +3,19 @@ package packet;
 import component.IdentifierField;
 import component.MutableField;
 import component.ReadOnlyField;
+import component.SignatureField;
 import encoding.*;
 
 /*
  * @Author: Wang Fengs
  * @Description: 表示一个MIN网络层包的通用结构
- * todo: 需要在signature完成之后取消signatureField的注释
  * @Version: 1.0.0
  * @Date: 22:07 2021/3/13
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
 public class MINPacket implements IEncodingAble {
     public IdentifierField identifierField; // 标识区
-//    private SignatureField signatureField;   // 签名区
+    private SignatureField signatureField;   // 签名区
     public ReadOnlyField readOnlyField;     // 只读区
     public MutableField mutableField;       // 可变区
     public VlInt packetType; // 包类型
@@ -58,11 +58,11 @@ public class MINPacket implements IEncodingAble {
         totalLength+=tmplen;
 
         // 签名区
-//        tmplen=this.signatureField.wireEncode(encoder);
-//        if(tmplen<=0){
-//            return 0;
-//        }
-//        totalLength+=tmplen;
+        tmplen=this.signatureField.wireEncode(encoder);
+        if(tmplen<=0){
+            return 0;
+        }
+        totalLength+=tmplen;
 
         // 标识区
         tmplen=this.identifierField.wireEncode(encoder);
@@ -134,9 +134,9 @@ public class MINPacket implements IEncodingAble {
                     existIdentifier=true;
                 case TLV.TlvSignatureField: // 签名区
                     // 解析签名区，保证如果存在签名，则签名均符合格式
-//                    if(!this.signatureField.wireDecode(cacheBlock)){
-//                        return false;
-//                    }
+                    if(!this.signatureField.wireDecode(cacheBlock)){
+                        return false;
+                    }
                 case TLV.TlvReadOnlyField: // 只读区
                     // 解析只读区
                     if(!this.readOnlyField.wireDecode(cacheBlock)){