diff --git a/njcn-common/src/main/java/com/njcn/common/utils/EncryptionUtil.java b/njcn-common/src/main/java/com/njcn/common/utils/EncryptionUtil.java
new file mode 100644
index 0000000..6b683e3
--- /dev/null
+++ b/njcn-common/src/main/java/com/njcn/common/utils/EncryptionUtil.java
@@ -0,0 +1,63 @@
+package com.njcn.common.utils;
+
+import com.njcn.common.utils.sm.Sm4Utils;
+import com.njcn.common.utils.sm.ThreeDesUtil;
+import org.apache.commons.codec.binary.Base64;
+
+/**
+ * pqs
+ *
+ * @author cdf
+ * @date 2022/1/6
+ */
+public class EncryptionUtil {
+
+
+    /**
+     * cd 系统配置的解密方式
+     * content 需要解密的内容
+     * 解密对应内容
+     *
+     * @author cdf
+     * @date 2021/10/12
+     */
+    public static String decoderString(Integer cd, String content) {
+        String seriesTmp = null;
+        if (cd == 0) {
+            seriesTmp = Base64.decodeBase64(content).toString();
+        } else if (cd == 1) {
+            seriesTmp = ThreeDesUtil.decryptThreeDes(content);
+        } else if (cd == 2) {
+            //SM4加密密码
+            String secretkey = Sm4Utils.globalSecretKey;
+            Sm4Utils sm4 = new Sm4Utils(secretkey);
+            seriesTmp = sm4.decryptData_ECB(content);
+        }
+        return seriesTmp;
+    }
+
+    /**
+     * cd 系统配置的加密方式
+     * content 需要加密的内容
+     * 加密对应内容
+     *
+     * @author cdf
+     * @date 2021/10/12
+     */
+    public static String encodeString(Integer cd, String content) {
+        String key = null;
+        if (cd == 0) {
+            key = Base64.encodeBase64String(content.getBytes());
+        } else if (cd == 1) {
+            key = ThreeDesUtil.encryptThreeDes(content);
+        } else if (cd == 2) {
+            //SM4加密密码
+//            String secretkey = Sm4Utils.globalSecretKey;
+//            Sm4Utils sm4 = new Sm4Utils(secretkey);
+//            key = sm4.encryptData_ECB(content);
+        }
+        return key;
+    }
+
+}
+