finish Component: Signature

src/main/java/component/Signature.java

@@ -0,0 +1,28 @@
+package component;
+
+import minsecurity.identity.Identity;
+
+/*
+ * @Author: Wang Feng
+ * @Description: 根据签名值类型创建一个 SignatureInfo
+ * @Version: 1.0.0
+ * @Date: 20:54 2021/3/15
+ * @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 Signature {
+    private SignatureInfo sigInfo;
+    private SignatureValue sigValue;
+
+    /**
+     * 根据网络身份创建一个 Signature
+     * @param identity
+     * @param value
+     */
+    public Signature(Identity identity,byte[] value){
+        // 往包中添加签名
+        KeyLocator keyLocator=new KeyLocator(identity.getName());
+        this.sigInfo=new SignatureInfo(
+                new SignatureAlgorithm(identity.getKeyParam().SignatureAlgorithm),keyLocator);
+        this.sigValue=new SignatureValue(value);
+    }
+}