diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/secure/SaSecureUtil.java b/sa-token-core/src/main/java/cn/dev33/satoken/secure/SaSecureUtil.java
index f1a27a66..25e15a98 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/secure/SaSecureUtil.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/secure/SaSecureUtil.java
@@ -33,6 +33,9 @@ import cn.dev33.satoken.exception.SaTokenException;
  */
 public class SaSecureUtil {
 
+	private SaSecureUtil() {
+	}
+	
 	/**
 	 * Base64编码
 	 */
diff --git a/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/BCryptTest.java b/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/BCryptTest.java
index 9e18d4f6..fa6c85db 100644
--- a/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/BCryptTest.java
+++ b/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/BCryptTest.java
@@ -14,7 +14,7 @@ import cn.dev33.satoken.secure.BCrypt;
 public class BCryptTest {
 
 	@Test
-	public void checkpwTest() {
+	public void testCheckpw() {
 		final String hashed = BCrypt.hashpw("12345");
 //		System.out.println(hashed);
 		Assertions.assertTrue(BCrypt.checkpw("12345", hashed));
diff --git a/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/SaSecureUtilTest.java b/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/SaSecureUtilTest.java
index 42d30942..9bf681fb 100644
--- a/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/SaSecureUtilTest.java
+++ b/sa-token-test/sa-token-springboot-test/src/test/java/cn/dev33/satoken/core/secure/SaSecureUtilTest.java
@@ -1,5 +1,7 @@
 package cn.dev33.satoken.core.secure;
 
+import java.util.HashMap;
+
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
@@ -63,4 +65,23 @@ public class SaSecureUtilTest {
     	Assertions.assertEquals(text2, "Sa-Token 一个轻量级java权限认证框架");
     }
 
+    @Test
+    public void rsaEncryptByPrivate() throws Exception {
+    	
+    	// 生成私钥和公钥 
+    	HashMap<String, String> map = SaSecureUtil.rsaGenerateKeyPair();
+    	String privateKey = map.get("private"); 
+    	String publicKey = map.get("public");
+
+    	// 文本
+    	String text = "Sa-Token 一个轻量级java权限认证框架";
+
+    	// 使用公钥加密
+    	String ciphertext = SaSecureUtil.rsaEncryptByPrivate(privateKey, text);
+    	
+    	// 使用私钥解密
+    	String text2 = SaSecureUtil.rsaDecryptByPublic(publicKey, ciphertext);
+    	Assertions.assertEquals(text2, "Sa-Token 一个轻量级java权限认证框架");
+    }
+
 }