diff --git a/hutool-crypto/src/main/java/cn/hutool/crypto/SignUtil.java b/hutool-crypto/src/main/java/cn/hutool/crypto/SignUtil.java
index a7a3690ba..512ad4f76 100755
--- a/hutool-crypto/src/main/java/cn/hutool/crypto/SignUtil.java
+++ b/hutool-crypto/src/main/java/cn/hutool/crypto/SignUtil.java
@@ -14,7 +14,7 @@ import java.util.Map;
* 签名工具类
* 封装包括:
*