diff --git a/Dkl-Vue-master/dkl-large/src/main/java/com/dkl/large/utli/EnciphermentUtil.java b/Dkl-Vue-master/dkl-large/src/main/java/com/dkl/large/utli/EnciphermentUtil.java
new file mode 100644
index 0000000..a757bbb
--- /dev/null
+++ b/Dkl-Vue-master/dkl-large/src/main/java/com/dkl/large/utli/EnciphermentUtil.java
@@ -0,0 +1,62 @@
+package com.dkl.large.utli;
+
+import com.koal.kms.sdk.ed.KmsSdkException;
+import com.koal.kms.sdk.ed.KmsUtil;
+import com.koal.kms.sdk.ed.Mode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Base64;
+
+import static org.springframework.util.SerializationUtils.serialize;
+
+public class EnciphermentUtil {
+    public static final Logger log = LoggerFactory.getLogger(EnciphermentUtil.class);
+
+    public static void main(String[] args) throws KmsSdkException {
+
+        String a =  kmsEncrypt("机密19985858585");
+
+    }
+    /**
+     * 数据加密
+     * originData 待加密数据
+     */
+    public static String kmsEncrypt(  String originData) throws KmsSdkException {
+        log.info("原始数据={}",originData);
+        byte[] encryptData = KmsUtil.encrypt(originData.getBytes(), Mode.CBC);
+        // 若要保存密文，使用Base64做编码处理
+        String saveEncryptData = Base64.getEncoder().encodeToString(encryptData);
+        log.info("加密数据={}",saveEncryptData);
+        return saveEncryptData;
+    }
+
+    /**
+     * 数据解密
+     * encryptData 加密后的数据
+     */
+
+    public static String kmsDencrypt(String encryptData) throws KmsSdkException {
+        log.info("加密数据={}",encryptData);
+        // 解密前使用Base64做解码处理
+        byte[] decryptData = Base64.getDecoder().decode(encryptData);
+        byte[] decryptResult = KmsUtil.decrypt(decryptData, Mode.CBC);
+        String result=new String(decryptResult);
+        log.info("解密后={}",result);
+        return result;
+    }
+
+    /**
+     *  一致性签名文档
+     * signatureData 需要获取验证的数据
+     */
+
+    public static String kmsSign(byte[] signatureData) throws KmsSdkException {
+        byte[] decryptResult = KmsUtil.hmacSM3Encrypt(signatureData);
+        String saveEncryptData = Base64.getEncoder().encodeToString(decryptResult);
+        log.info("签名码={}",saveEncryptData);
+        return saveEncryptData;
+    }
+
+
+}