diff --git a/src/main/java/minsecurity/crypto/HashAlgo.java b/src/main/java/minsecurity/crypto/HashAlgo.java
index a25408f..c88a5d9 100644
--- a/src/main/java/minsecurity/crypto/HashAlgo.java
+++ b/src/main/java/minsecurity/crypto/HashAlgo.java
@@ -19,6 +19,7 @@ import java.nio.charset.StandardCharsets;
  * @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 HashAlgo {
+
     ///////////////
     ///// SM3 /////
     ///////////////