默认的

src/main/java/com/hao/digitalsignature/controller/FileDealController.java

 package com.hao.digitalsignature.controller;
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.hao.digitalsignature.encryption.AES1;
+import com.hao.digitalsignature.encryption.AESmiyao;
+import com.hao.digitalsignature.encryption.RSAEncrypt;
 import com.hao.digitalsignature.entity.Files;
+import com.hao.digitalsignature.mapper.FileMapper;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -16,11 +22,16 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.net.SocketException;
 import java.net.URLEncoder;
-import java.util.UUID;
+import java.util.*;
 
 @RequestMapping("/file")
 @RestController
 public class FileDealController {
+
+
+    @Autowired
+    private FileMapper fileMapper;
+
     @RequestMapping(value = "upload")
     public String upload(@RequestParam("file") MultipartFile pic) throws SocketException, IOException {
         String newName = "";
@@ -54,20 +65,47 @@ public class FileDealController {
      * @return
      */
     @RequestMapping(value = "download")
-    public static void downFile(@RequestBody String fileName, HttpServletRequest request,
+    public void downFile(@RequestBody String fileName, HttpServletRequest request,
                                 HttpServletResponse response) {
         // 得到要下载的文件名
         fileName = fileName.substring(0,fileName.length()-1);
+        try {
+            //获取摘要
+            QueryWrapper<Files> wrapper = new QueryWrapper<>();
+            wrapper.eq("picture_realname", fileName.split("\\.")[0]);
+            Files files = fileMapper.selectOne(wrapper);
+            System.out.println("摘要："+files.getDig().split(";")[2]);
+
+            List<String> dig=new ArrayList<String>(Arrays.asList(files.getDig().split(";")));
+            dig.add(files.getCreatetime());
+            String[] dig1=new String[dig.size()];
+            dig.toArray(dig1);
+            for(int i=0;i<dig1.length;i++)
+            System.out.println("正确签名和时间戳"+dig1[i]);
+            //生成AES密钥
+            String aesPassword =AESmiyao.getKey();
+            //AES加密
+            String encryContent= AES1.encryptAES(files.getDig().split(";")[2],aesPassword);
+            //对称加密后的签名
+            dig1[2]=encryContent;
+            for(int i=0;i<dig1.length;i++)
+            System.out.println("加密摘要的签名和时间戳"+dig1[i]);
+            //发送RSA
+            System.out.println(Arrays.toString(dig1));
+            String rsaMsg=new String();
+            for(int i=0;i<dig1.length;i++){
+                rsaMsg+=dig1[i];
+                rsaMsg+=";";
+            }
+            byte[] rsaEn=RSAEncrypt.RSAen(rsaMsg.substring(0,rsaMsg.length()-1));
+            //RSA解密
+            String rsaDe=RSAEncrypt.RSAde(rsaEn);
 
 
 
-        try {
-            FilesController  filesController=new FilesController();
-//            String[] strs =fileName.split("\\.");
-//            Files files = filesController.search("fabbc4d4-d0d6-4ff8-9402-1bea422f4fcf");
-          System.out.println(filesController.search("fabbc4d4-d0d6-4ff8-9402-1bea422f4fcf"));
 
 
+            //下载图片
             File filep = new File("");
             String filePath = filep.getCanonicalPath();
             // 上传位置
@@ -89,7 +127,6 @@ public class FileDealController {
            // response.setContentType("image/png");
             response.setHeader("Content-Disposition", "attachment;filename="
                     + URLEncoder.encode(realname, "UTF-8"));
-
             // 读取要下载的文件，保存到文件输入流
             FileInputStream in = new FileInputStream(fileSaveRootPath + "\\" + fileName);
            // response.setHeader("Location",);
@@ -98,12 +135,10 @@ public class FileDealController {
             // 创建缓冲区
             byte buffer[] = new byte[1024];
             int len = 0;
-
             // 循环将输入流中的内容读取到缓冲区当中
             while ((len = in.read(buffer)) > 0) {
                 // 输出缓冲区的内容到浏览器，实现文件下载
                 out.write(buffer, 0, len);
-
             }
             // 关闭文件输入流
             in.close();

src/main/java/com/hao/digitalsignature/controller/FilesController.java

 package com.hao.digitalsignature.controller;
 
 
-import com.baomidou.mybatisplus.core.conditions.Wrapper;
-import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
-import com.hao.digitalsignature.encryption.DSASign;
-import com.hao.digitalsignature.encryption.RSAEncrypt;
 import com.hao.digitalsignature.entity.User;
 import com.hao.digitalsignature.mapper.UserMapper;
-import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
@@ -17,7 +12,6 @@ import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import java.io.File;
 import java.io.IOException;
-import java.math.BigInteger;
 import java.util.List;
 
 @RestController
@@ -48,15 +42,6 @@ public class FilesController {
 //        File file = new File(path+photo.getOriginalFilename());
 //        photo.transferTo(file);
 //    }
-    @GetMapping("file/search")
-    public Files search(String name){
-        QueryWrapper<Files> wrapper = new QueryWrapper<>();
-        wrapper.eq("picture_realname", name);
-        Files files = fileMapper.selectOne(wrapper);
-        System.out.println(files);
-        return files;
-    }
-
     @PutMapping("/file/update")
     public String update(int id,String name){
         Files file = fileMapper.selectById(id);
@@ -71,19 +56,6 @@ public class FilesController {
     @PostMapping("/file/save")
     public String save(@RequestBody Files file){
         System.out.println(file);
-        BigInteger back[]=new BigInteger[2];
-        int j=0;
-        Base64 base64 = new Base64();
-        DSASign dsa = new DSASign();
-        dsa.initKeys();
-        //要签名的数据，传入AES加密后的内容
-        String message = file.getPicture_realname();
-        System.out.println("签名的数据："+message);
-        BigInteger sig[] = dsa.signature(message.getBytes());
-        String dig=sig[0]+";"+sig[1]+";"+dsa._hashInZq(message.getBytes());
-        file.setDig(dig);
-
-
         int i = fileMapper.insert(file);
         if (i>0)
             return "success";

src/main/java/com/hao/digitalsignature/encryption/AES1.java

@@ -21,14 +21,14 @@ public class AES1 {
 
     private static final Logger logger = LoggerFactory.getLogger(SecurityUtil.class);
     private static final String ENCODING = "UTF-8";
-    private static final String PASSWORD = "388f31778f8d7b227170f6ef67028e26"; // 加密秘钥
+//    private static final String PASSWORD = "388f31778f8d7b227170f6ef67028e26"; // 加密秘钥
 
     /**
      * AES加密
      * @param content 明文
      * @return 密文
      */
-    public static String encryptAES(String content) throws Exception {
+    public static String encryptAES(String content,String PASSWORD) throws Exception {
         if (StringUtils.isEmpty(content)) {
             throw new Exception("明文不能为空！");
         }
@@ -44,7 +44,7 @@ public class AES1 {
      * @param encryptResultStr 密文
      * @return 明文
      */
-    public static String decryptAES(String encryptResultStr) throws Exception {
+    public static String decryptAES(String encryptResultStr,String PASSWORD) throws Exception {
         if (StringUtils.isEmpty(encryptResultStr)) {
             throw new Exception("密文不能为空");
         }
@@ -191,10 +191,10 @@ public class AES1 {
         System.out.println("加密解密");
         String content = "7424862e-ec4b-455c-95f1-f7f4cdcf3588";
         System.out.println("原内容为：" + content);
-        String encryContent = encryptAES(content);
-        System.out.println("加密后的内容为：" + encryContent);
-        String decryContent = decryptAES(encryContent);
-        System.out.println("解密后的内容为：" + decryContent);
+//        String encryContent = encryptAES(content);
+//        System.out.println("加密后的内容为：" + encryContent);
+//        String decryContent = decryptAES(encryContent);
+       // System.out.println("解密后的内容为：" + decryContent);
     }
 
 }
\ No newline at end of file

src/main/java/com/hao/digitalsignature/encryption/AESmiyao.java

@@ -12,7 +12,7 @@ public class AESmiyao {
     /**
      * 随机生成秘钥
      */
-    public static void getKey() {
+    public static String getKey() {
         try {
             KeyGenerator kg = KeyGenerator.getInstance("AES");
             kg.init(128);
@@ -23,10 +23,12 @@ public class AESmiyao {
             System.out.println(s);
             System.out.println("十六进制密钥长度为"+s.length());
             System.out.println("二进制密钥的长度为"+s.length()*4);
+            return s;
         }
         catch (NoSuchAlgorithmException e) {
             e.printStackTrace();
             System.out.println("没有此算法。");
+            return "error";
         }
     }
     /**

src/main/java/com/hao/digitalsignature/encryption/DSASign.java

@@ -100,7 +100,7 @@ public class DSASign {
         //对消息摘要进行签名得到r和s,在使用RSA进行加密并发送
         for (int i =0;i< sig.length;i++){
         System.out.println("签名:"+sig[i].toString());
-         back[i]= new BigInteger(RSAEncrypt.RSA(sig[i].toString()));
+         back[i]= new BigInteger(RSAEncrypt.RSAen(sig[i].toString()));
         }
         System.out.println("\n需要解密的信息:"+back[0]);
         System.out.println("           "+back[1]);

src/main/java/com/hao/digitalsignature/encryption/RSAEncrypt.java

@@ -331,17 +331,10 @@ public class RSAEncrypt {
         }
         return stringBuilder.toString();
     }
-    public static String RSA(String key) throws Exception {
-        String publicPath = "C:\\Users\\10908"; //公匙存放位置
-        String privatePath = "C:\\Users\\10908"; //私匙存放位置
-
+    public static String RSAde(byte[] cipherData) throws Exception {
+        String publicPath = "C:\\Users\\w10"; //公匙存放位置
+        String privatePath = "C:\\Users\\w10"; //私匙存放位置
         Base64 base64 = new Base64();
-
-
-        String signKey = key;
-        // 公钥加密过程
-        byte[] cipherData = RSAEncrypt.encrypt(RSAEncrypt.loadPublicKeyByStr(RSAEncrypt.loadPublicKeyByFile(publicPath)),
-                signKey.getBytes());
         String cipher = new String(base64.encode(cipherData));
         // 私钥解密过程
         byte[] res = RSAEncrypt.decrypt(RSAEncrypt.loadPrivateKeyByStr(RSAEncrypt.loadPrivateKeyByFile(privatePath)),
@@ -353,15 +346,25 @@ public class RSAEncrypt {
 //        System.out.println();
         return restr;
     }
+    public static byte[] RSAen(String key) throws Exception {
+        String publicPath = "C:\\Users\\w10"; //公匙存放位置
+        String privatePath = "C:\\Users\\w10"; //私匙存放位置
+        Base64 base64 = new Base64();
+        String signKey = key;
+        // 公钥加密过程
+        byte[] cipherData = RSAEncrypt.encrypt(RSAEncrypt.loadPublicKeyByStr(RSAEncrypt.loadPublicKeyByFile(publicPath)),
+                signKey.getBytes());
+        return cipherData;
+    }
     public static void main(String[] args) throws Exception {
-        String publicPath = "C:\\Users\\10908"; //公匙存放位置
-        String privatePath = "C:\\Users\\10908"; //私匙存放位置
+        String publicPath = "C:\\Users\\w10"; //公匙存放位置
+        String privatePath = "C:\\Users\\w10"; //私匙存放位置
 
         Base64 base64 = new Base64();
 
         System.out.println("--------------公钥加密私钥解密过程-------------------");
 
-        String signKey = "469468403832192271371540108180328462414842553340";
+        String signKey = "92743764462052142627293439435630995500413457934;675096046721824647030786244037909370416702721699;NDY5QTI5NkIzOUYxQzU3NkJCREYzRjgyRUJCMEU1MDg5OTVEMEUxMUU4MDczRDk3QThGRDUxRkJCMzhBNDIyQTUyNjRDNzU2NDA3REI1N0UzNDlBQjlDM0M3NzFFMDQw;2023-04-22 12:16:23;\n";
         // 公钥加密过程
         byte[] cipherData = RSAEncrypt.encrypt(RSAEncrypt.loadPublicKeyByStr(RSAEncrypt.loadPublicKeyByFile(publicPath)),
                 signKey.getBytes());