diff --git a/src/main/java/component/SignatureType.java b/src/main/java/component/SignatureType.java
new file mode 100644
index 0000000..db2ac24
--- /dev/null
+++ b/src/main/java/component/SignatureType.java
@@ -0,0 +1,44 @@
+package component;
+
+import encoding.Block;
+import encoding.Encoder;
+import encoding.IEncodingAble;
+
+/*
+ * @Author: Wang Feng
+ * @Description: 表示一个签名的类型
+//	1. 格式如下：
+//		SignatureType = SIGNATURE-TYPE-TYPE TLV-LENGTH <NonNegativeInteger>
+//	2. 详情参见：http://gitea.qjm253.cn/PKUSZ-future-network-lab/minlib/src/branch/master/docs/PacketFormat.md#4-signature
+ * @Version: 1.0.0
+ * @Date: 21:38 2021/3/12
+ * @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
+ */
+
+class SignatureTypeValue{
+    public long getSignatureTypeValue() {
+        return signatureTypeValue;
+    }
+
+    public void setSignatureTypeValue(long signatureTypeValue) {
+        this.signatureTypeValue = signatureTypeValue;
+    }
+
+    private long signatureTypeValue;
+    public SignatureTypeValue(long signatureTypeValue){
+        this.signatureTypeValue=signatureTypeValue;
+    }
+}
+public class SignatureType implements TlvComponentBase, IEncodingAble {
+//    private SignatureAlgorithm value;
+
+    @Override
+    public int wireEncode(Encoder encoder) {
+        return 0;
+    }
+
+    @Override
+    public boolean wireDecode(Block block) {
+        return false;
+    }
+}
diff --git a/src/main/java/component/SignatureValue.java b/src/main/java/component/SignatureValue.java
new file mode 100644
index 0000000..8bddf3e
--- /dev/null
+++ b/src/main/java/component/SignatureValue.java
@@ -0,0 +1,111 @@
+package component;
+
+import encoding.*;
+
+/*
+ * @Author: Wang Feng
+ * @Description: 表示一个签名值 TLV
+//	1. 格式如下：
+//		SignatureValue = 200 TLV-LENGTH *OCTET
+//	2. 详情参见：http://gitea.qjm253.cn/PKUSZ-future-network-lab/minlib/src/branch/master/docs/PacketFormat.md#4-signature
+ * @Version: 1.0.0
+ * @Date: 21:45 2021/3/12
+ * @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 SignatureValue implements TlvComponentBase, IEncodingAble {
+    private byte[] value;
+
+    /**
+     * 根据签名值字节数组创建一个 SignatureValue
+     * @param value
+     */
+    public SignatureValue(byte[] value){
+        this.buildSignatureValueByByteArray(value);
+    }
+
+    /**
+     * 根据 TLV Block 创建一个 SignatureValue
+     * @param block
+     */
+    public SignatureValue(Block block){
+        this.buildSignatureValueByBlock(block);
+    }
+
+    /**
+     * 根据签名值字节数组初始化一个 SignatureValue
+     * @param value
+     * @return
+     */
+    public boolean buildSignatureValueByByteArray(byte[] value){
+        this.value=new byte[value.length];
+        System.arraycopy(value,0,this.value,0,value.length);
+        return true;
+    }
+
+    /**
+     * 根据 TLV Block 初始化一个 SignatureValue
+     * @param block
+     * @return
+     */
+    public boolean buildSignatureValueByBlock(Block block){
+        return this.wireDecode(block);
+    }
+
+    /**
+     * 得到签名值的字节数组
+     * @return
+     */
+    public byte[] getValue(){
+        return this.value;
+    }
+
+    /**
+     * 对 SignatureValue 进行线速编码为TLV
+     * @param encoder
+     * @return
+     */
+    @Override
+    public int wireEncode(Encoder encoder) {
+        int totalLength=0;
+        // 编码 TLV-VALUE
+        int tmplen=encoder.prependByteArray(this.value,new SizeT(this.value.length));
+        if(tmplen<=0){
+            return 0;
+        }
+        totalLength+=tmplen;
+
+        // 编码 TLV-LENGTH
+        tmplen=encoder.prependVarNumber(new VlInt(totalLength));
+        if(tmplen<=0){
+            return 0;
+        }
+        totalLength+=tmplen;
+
+        // 编码 TLV-TYPE
+        tmplen=encoder.prependVarNumber(new VlInt(TLV.TlvSignatureValue));
+        if(tmplen<=0){
+            return 0;
+        }
+        totalLength+=tmplen;
+
+        return totalLength;
+    }
+
+    /**
+     * 从 TLV Block 中解码出一个 SignatureValue
+     * @param block
+     * @return
+     */
+    @Override
+    public boolean wireDecode(Block block) {
+        // 检查 Type 是否正确
+        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvSignatureValue))){
+            return false;
+        }
+
+        int len=block.getLength().getVlIntValue2Int();
+        this.value=new byte[len];
+        System.arraycopy(block.getValue(),0,this.value,0,len);
+        return true;
+    }
+}