DES加密解密

src/main/java/com/kxs/adminap/config/Des.java

@@ -0,0 +1,7 @@
+package com.kxs.adminap.config;
+
+public class Des {
+
+	public static String key = "5617SIG4W1SAVDTSA6OV0VN1G04PS3N5";
+	public static String iv = "26584066";
+}

src/main/java/com/kxs/adminap/controller/TestController.java

@@ -55,8 +55,8 @@ public class TestController {
 
 		String json = "{\"MerchantId\":12}";
 		try {
-			json = DesUtil.encrypt(json, "frgt7890", "utf8");
-			json = DesUtil.decrypt("bYyEqmuNJyX5TAhNNjyL0A==", "*ga34|^7", "utf8");
+			json = DesUtil.encrypt(json);
+			json = DesUtil.decrypt(json);
 		} catch (Exception e) {
 			e.printStackTrace();
 		}

src/main/java/com/kxs/adminap/controller/UsersController.java

@@ -7,6 +7,7 @@ import com.kxs.adminap.enity.AppResultJson;
 import com.kxs.adminap.enity.RelationData;
 import com.kxs.adminap.model.Users;
 import com.kxs.adminap.service.main.UsersService;
+import com.kxs.adminap.util.DesUtil;
 import com.kxs.adminap.util.RedisUtils;
 import com.kxs.adminap.util.UsersUtil;
 import com.kxs.adminap.util.Util;
@@ -36,7 +37,7 @@ public class UsersController
     @PostMapping("/main/users/all")
     public @ResponseBody AppResultJson List(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer page = Integer.parseInt(data.getString("PageNum").toString());
         Integer limit = Integer.parseInt(data.getString("PageSize").toString());
@@ -151,7 +152,7 @@ public class UsersController
     @PostMapping("/main/users/parentlist")
     public @ResponseBody AppResultJson ParentList(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer page = Integer.parseInt(data.getString("PageNum").toString());
         Integer limit = Integer.parseInt(data.getString("PageSize").toString());
@@ -222,7 +223,7 @@ public class UsersController
     @RequestMapping("/main/users/childlist")
     public @ResponseBody AppResultJson ChildList(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer page = Integer.parseInt(data.getString("PageNum").toString());
         Integer limit = Integer.parseInt(data.getString("PageSize").toString());
@@ -308,7 +309,7 @@ public class UsersController
     @RequestMapping("/main/users/childamountrecordlist")
     public @ResponseBody AppResultJson ChildAmountRecordList(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer page = Integer.parseInt(data.getString("PageNum").toString());
         Integer limit = Integer.parseInt(data.getString("PageSize").toString());
@@ -500,7 +501,7 @@ public class UsersController
     @RequestMapping("/main/users/canclelist")
     public @ResponseBody AppResultJson CancleList(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer page = Integer.parseInt(data.getString("PageNum").toString());
         Integer limit = Integer.parseInt(data.getString("PageSize").toString());
@@ -622,7 +623,7 @@ public class UsersController
     @GetMapping("/main/users")
     public @ResponseBody AppResultJson Query(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer Id = Integer.parseInt(Util.CheckInt(data.get("Id").toString()));
         Users item = UsersService.Query(Id, "*");
@@ -642,7 +643,7 @@ public class UsersController
     @PostMapping("/main/users")
     public @ResponseBody AppResultJson Add(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         Users data = JSONObject.parseObject(JSONObject.toJSONString(value), Users.class);
         Map<String, Object> fields = new HashMap<>();
         fields.put("NickName", data.NickName); //昵称
@@ -728,7 +729,7 @@ public class UsersController
     @PutMapping("/main/users")
     public @ResponseBody AppResultJson Edit(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         Users data = JSONObject.parseObject(JSONObject.toJSONString(value), Users.class);
         Map<String, Object> fields = new HashMap<>();
         fields.put("NickName", data.NickName); //昵称
@@ -814,7 +815,7 @@ public class UsersController
     @DeleteMapping("/main/users/remove")
     public @ResponseBody AppResultJson Remove(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject jsonObj = JSONObject.parseObject(value);
         String Id = jsonObj.get("Id").toString();
         String[] idlist = Id.split(",");
@@ -840,7 +841,7 @@ public class UsersController
     @DeleteMapping("/main/users")
     public @ResponseBody AppResultJson Delete(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject jsonObj = JSONObject.parseObject(value);
         String Id = jsonObj.get("Id").toString();
         String[] idlist = Id.split(",");
@@ -866,7 +867,7 @@ public class UsersController
     @PutMapping("/main/users/open")
     public @ResponseBody AppResultJson Open(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject jsonObj = JSONObject.parseObject(value);
         String Id = jsonObj.get("Id").toString();
         String[] idlist = Id.split(",");
@@ -894,7 +895,7 @@ public class UsersController
     @PutMapping("/main/users/close")
     public @ResponseBody AppResultJson Close(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject jsonObj = JSONObject.parseObject(value);
         String Id = jsonObj.get("Id").toString();
         String[] idlist = Id.split(",");
@@ -921,7 +922,7 @@ public class UsersController
     @PutMapping("/main/users/sort")
     public @ResponseBody AppResultJson Sort(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject jsonObj = JSONObject.parseObject(value);
         Integer Id = Integer.parseInt(jsonObj.get("Id").toString());
         Integer Sort = Integer.parseInt(jsonObj.get("Sort").toString());
@@ -941,7 +942,7 @@ public class UsersController
     @PostMapping("/main/users/import")
     public @ResponseBody AppResultJson Import(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject jsonObj = JSONObject.parseObject(value);
         String ExcelData = jsonObj.get("ExcelData").toString();
         UsersService.Import(ExcelData);
@@ -961,7 +962,7 @@ public class UsersController
     @PostMapping("/main/users/export")
     public @ResponseBody AppResultJson ExportExcel(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         Users data = JSONObject.parseObject(JSONObject.toJSONString(value), Users.class);
         String SqlString = "select * from Users order by Id desc limit 20";
         Dictionary<String, Object> dic = new Hashtable<>();
@@ -985,7 +986,7 @@ public class UsersController
     @PostMapping("/main/users/sycnposcount")
     public @ResponseBody AppResultJson SycnData(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         String UserId = data.getString("UserId").toString();
         // var BrandIds = KqProductsService.QueryBrandId();
@@ -1010,7 +1011,7 @@ public class UsersController
     @PostMapping("/main/users/resetpwd")
     public @ResponseBody AppResultJson ResetPwd(String value)
     {
-        // value = PublicFunction.DesDecrypt(value);
+        value = DesUtil.decrypt(value);
         JSONObject data = JSONObject.parseObject(value);
         Integer UserId = Integer.parseInt(data.getString("UserId").toString());
         var info = "";

src/main/java/com/kxs/adminap/util/DesUtil.java

@@ -1,104 +1,203 @@
 package com.kxs.adminap.util;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
 import java.security.Key;
-import java.security.SecureRandom;
-import java.util.Base64;
+
 import javax.crypto.Cipher;
-import javax.crypto.KeyGenerator;
 import javax.crypto.SecretKeyFactory;
 import javax.crypto.spec.DESedeKeySpec;
 import javax.crypto.spec.IvParameterSpec;
 
-public class DesUtil {
-    public static Key setKey(String strKey) {
-        Key key = null;
-        try {
-            KeyGenerator generator = KeyGenerator.getInstance("DES");
-            generator.init(new SecureRandom(strKey.getBytes())); // 根据参数生成key
-            key = generator.generateKey();
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return key;
-    }
+import com.kxs.adminap.config.Des;
 
+public class DesUtil {
     /**
-     * @param source
-     *                编码内容
-     * @param key
-     *                密钥
-     * @param charSet
-     *                编码格式
-     * @return
+     * @param str 需要加密的文字
+     * @return 加密后的文字
+     * @throws Exception 加密失败
      */
-    public static String encrypt(String source, String key, String charSet) {
-        String encrypt = null;
+    public static String encrypt(final String str, String key, String iv) throws Exception {
+
+        Key deskey = null;
+        DESedeKeySpec spec = new DESedeKeySpec(key.getBytes());
+        SecretKeyFactory keyfactory = SecretKeyFactory
+                .getInstance("desede");
+        deskey = keyfactory.generateSecret(spec);
+
+        Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");
+        IvParameterSpec ips = new IvParameterSpec(iv.getBytes());
+        cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
+        byte[] encryptData = cipher.doFinal(str.getBytes(StandardCharsets.UTF_8));
+        String result = encode(encryptData);
+
+        return result;
+    }
+    public static String encrypt(String str) throws Exception {
+        String result = "";
         try {
-            byte[] ret = encrypt(source.getBytes(charSet), key);
-            encrypt = new String(Base64.getEncoder().encode(ret));
+            result = encrypt(str, Des.key, Des.iv);
         } catch (Exception e) {
             e.printStackTrace();
-            encrypt = null;
         }
-        return encrypt;
+        return result;
     }
 
     /**
-     * @param encryptedData
-     *                      解码内容
-     * @param key
-     *                      密钥
-     * @param charSet
-     *                      编码格式
-     * @return
+     * 3DES解密
+     *
+     * @param encryptText 密文
+     * @param secretKey   加密时的key
+     * @param iv          加密时使用的向量
+     * @return 返回解密后的明文
+     * @throws Exception
      */
-    public static String decrypt(String encryptedData, String key, String charSet) {
-        // String descryptedData = null;
-        // try {
-        //     byte[] ret = descrypt(Base64.getDecoder().decode(encryptedData.getBytes(StandardCharsets.UTF_8)), key);
-        //     descryptedData = new String(ret, charSet);
-        // } catch (Exception e) {
-        //     e.printStackTrace();
-        //     descryptedData = null;
-        // }
-        // return descryptedData;
+    public static String decrypt(String encryptText, String secretKey, String iv) throws Exception {
+        Key deskey = null;
+        DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());
+        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
+        deskey = keyfactory.generateSecret(spec);
+        Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");
+        IvParameterSpec ips = new IvParameterSpec(iv.getBytes());
+        cipher.init(Cipher.DECRYPT_MODE, deskey, ips);
+
+        byte[] decryptData = cipher.doFinal(decode(encryptText));
+
+        String result = new String(decryptData, StandardCharsets.UTF_8);
+
+        return result;
+    }
+    public static String decrypt(String encryptText) {
         String result = "";
         try {
-            Key desKey = setKey(key);
-            Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
-            cipher.init(Cipher.DECRYPT_MODE, desKey);
-            byte[] base64Byte = Base64.getDecoder().decode(encryptedData);
-            byte[] decryptData = cipher.doFinal(base64Byte);
-            result = new String(decryptData, StandardCharsets.UTF_8);
+            result = decrypt(encryptText, Des.key, Des.iv);
         } catch (Exception e) {
             e.printStackTrace();
         }
-
         return result;
     }
 
-    private static byte[] encrypt(byte[] primaryData, String key) {
-        Key desKey = setKey(key);
-        try {
-            Cipher cipher = Cipher.getInstance("DES"); // Cipher对象实际完成加密操作
-            cipher.init(Cipher.ENCRYPT_MODE, desKey); // 用密钥初始化Cipher对象(加密)
-            return cipher.doFinal(primaryData);
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
+    private static char[] legalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
+            .toCharArray();
+
+    public static String encode(byte[] data) {
+        int start = 0;
+        int len = data.length;
+        StringBuffer buf = new StringBuffer(data.length * 3 / 2);
+
+        int end = len - 3;
+        int i = start;
+        int n = 0;
+
+        while (i <= end) {
+            int d = ((((int) data[i]) & 0x0ff) << 16) | ((((int) data[i + 1]) & 0x0ff) << 8)
+                    | (((int) data[i + 2]) & 0x0ff);
+
+            buf.append(legalChars[(d >> 18) & 63]);
+            buf.append(legalChars[(d >> 12) & 63]);
+            buf.append(legalChars[(d >> 6) & 63]);
+            buf.append(legalChars[d & 63]);
+
+            i += 3;
+
+            if (n++ >= 14) {
+                n = 0;
+                buf.append(" ");
+            }
+        }
+
+        if (i == start + len - 2) {
+            int d = ((((int) data[i]) & 0x0ff) << 16) | ((((int) data[i + 1]) & 255) << 8);
+
+            buf.append(legalChars[(d >> 18) & 63]);
+            buf.append(legalChars[(d >> 12) & 63]);
+            buf.append(legalChars[(d >> 6) & 63]);
+            buf.append("=");
+        } else if (i == start + len - 1) {
+            int d = (((int) data[i]) & 0x0ff) << 16;
+
+            buf.append(legalChars[(d >> 18) & 63]);
+            buf.append(legalChars[(d >> 12) & 63]);
+            buf.append("==");
+        }
+
+        return buf.toString();
+    }
+
+    private static int decode(char c) {
+        if (c >= 'A' && c <= 'Z') {
+            return ((int) c) - 65;
+        } else if (c >= 'a' && c <= 'z') {
+            return ((int) c) - 97 + 26;
+        } else if (c >= '0' && c <= '9') {
+            return ((int) c) - 48 + 26 + 26;
+        } else {
+            switch (c) {
+                case '+':
+                    return 62;
+                case '/':
+                    return 63;
+                case '=':
+                    return 0;
+                default:
+                    throw new RuntimeException("unexpected code: " + c);
+            }
         }
     }
 
-    private static byte[] descrypt(byte[] encryptedData, String key) {
-        Key desKey = setKey(key);
+    /**
+     * Decodes the given Base64 encoded String to a new byte array. The byte array
+     * holding the decoded data is returned.
+     */
+
+    public static byte[] decode(String s) {
+
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
         try {
-            Cipher cipher = Cipher.getInstance("DES"); // Cipher对象实际完成解密操作
-            cipher.init(Cipher.DECRYPT_MODE, desKey); // 用密钥初始化Cipher对象(解密)
-            return cipher.doFinal(encryptedData);
-        } catch (Exception e) {
-            e.printStackTrace();
-            return null;
+            decode(s, bos);
+        } catch (IOException e) {
+            throw new RuntimeException();
+        }
+        byte[] decodedBytes = bos.toByteArray();
+        try {
+            bos.close();
+            bos = null;
+        } catch (IOException ex) {
+            System.err.println("Error while decoding BASE64: " + ex.toString());
+        }
+        return decodedBytes;
+    }
+
+    private static void decode(String s, OutputStream os) throws IOException {
+        int i = 0;
+
+        int len = s.length();
+
+        while (true) {
+            while (i < len && s.charAt(i) <= ' ') {
+                i++;
+            }
+
+            if (i == len) {
+                break;
+            }
+
+            int tri = (decode(s.charAt(i)) << 18) + (decode(s.charAt(i + 1)) << 12) + (decode(s.charAt(i + 2)) << 6)
+                    + (decode(s.charAt(i + 3)));
+
+            os.write((tri >> 16) & 255);
+            if (s.charAt(i + 2) == '=') {
+                break;
+            }
+            os.write((tri >> 8) & 255);
+            if (s.charAt(i + 3) == '=') {
+                break;
+            }
+            os.write(tri & 255);
+
+            i += 4;
         }
     }
 }