开发者社区> 缤纷世界wb> 正文

RSA 非对称加密【转】

简介: 演示代码:https://pan.baidu.com/s/10rfSUUDEEHvCDEYH0oEVCw   Base64工具类,可以让rsa编码的乱码变成一串字符序列 1 package com.
+关注继续查看

演示代码:https://pan.baidu.com/s/10rfSUUDEEHvCDEYH0oEVCw

 

Base64工具类,可以让rsa编码的乱码变成一串字符序列

复制代码
  1 package com.utils;
  2 
  3 import java.io.ByteArrayInputStream;
  4 import java.io.ByteArrayOutputStream;
  5 import java.io.File;
  6 import java.io.FileInputStream;
  7 import java.io.FileOutputStream;
  8 import java.io.InputStream;
  9 import java.io.OutputStream;
 10 
 11 import it.sauronsoftware.base64.Base64;
 12 
 13 /** */
 14 /**
 15  * <p>
 16  * BASE64编码解码工具包
 17  * </p>
 18  * <p>
 19  * 依赖javabase64-1.3.1.jar
 20  * </p>
 21  * 
 22  * @author IceWee
 23  * @date 2012-5-19
 24  * @version 1.0
 25  */
 26 public class Base64Utils {
 27 
 28     /** */
 29     /**
 30      * 文件读取缓冲区大小
 31      */
 32     private static final int CACHE_SIZE = 1024;
 33 
 34     /** */
 35     /**
 36      * <p>
 37      * BASE64字符串解码为二进制数据
 38      * </p>
 39      * 
 40      * @param base64
 41      * @return
 42      * @throws Exception
 43      */
 44     public static byte[] decode(String base64) throws Exception {
 45         return Base64.decode(base64.getBytes());
 46     }
 47 
 48     /** */
 49     /**
 50      * <p>
 51      * 二进制数据编码为BASE64字符串
 52      * </p>
 53      * 
 54      * @param bytes
 55      * @return
 56      * @throws Exception
 57      */
 58     public static String encode(byte[] bytes) throws Exception {
 59         return new String(Base64.encode(bytes));
 60     }
 61 
 62     /** */
 63     /**
 64      * <p>
 65      * 将文件编码为BASE64字符串
 66      * </p>
 67      * <p>
 68      * 大文件慎用,可能会导致内存溢出
 69      * </p>
 70      * 
 71      * @param filePath
 72      *            文件绝对路径
 73      * @return
 74      * @throws Exception
 75      */
 76     public static String encodeFile(String filePath) throws Exception {
 77         byte[] bytes = fileToByte(filePath);
 78         return encode(bytes);
 79     }
 80 
 81     /** */
 82     /**
 83      * <p>
 84      * BASE64字符串转回文件
 85      * </p>
 86      * 
 87      * @param filePath
 88      *            文件绝对路径
 89      * @param base64
 90      *            编码字符串
 91      * @throws Exception
 92      */
 93     public static void decodeToFile(String filePath, String base64) throws Exception {
 94         byte[] bytes = decode(base64);
 95         byteArrayToFile(bytes, filePath);
 96     }
 97 
 98     /** */
 99     /**
100      * <p>
101      * 文件转换为二进制数组
102      * </p>
103      * 
104      * @param filePath
105      *            文件路径
106      * @return
107      * @throws Exception
108      */
109     public static byte[] fileToByte(String filePath) throws Exception {
110         byte[] data = new byte[0];
111         File file = new File(filePath);
112         if (file.exists()) {
113             FileInputStream in = new FileInputStream(file);
114             ByteArrayOutputStream out = new ByteArrayOutputStream(2048);
115             byte[] cache = new byte[CACHE_SIZE];
116             int nRead = 0;
117             while ((nRead = in.read(cache)) != -1) {
118                 out.write(cache, 0, nRead);
119                 out.flush();
120             }
121             out.close();
122             in.close();
123             data = out.toByteArray();
124         }
125         return data;
126     }
127 
128     /** */
129     /**
130      * <p>
131      * 二进制数据写文件
132      * </p>
133      * 
134      * @param bytes
135      *            二进制数据
136      * @param filePath
137      *            文件生成目录
138      */
139     public static void byteArrayToFile(byte[] bytes, String filePath) throws Exception {
140         InputStream in = new ByteArrayInputStream(bytes);
141         File destFile = new File(filePath);
142         if (!destFile.getParentFile().exists()) {
143             destFile.getParentFile().mkdirs();
144         }
145         destFile.createNewFile();
146         OutputStream out = new FileOutputStream(destFile);
147         byte[] cache = new byte[CACHE_SIZE];
148         int nRead = 0;
149         while ((nRead = in.read(cache)) != -1) {
150             out.write(cache, 0, nRead);
151             out.flush();
152         }
153         out.close();
154         in.close();
155     }
156 
157 }
复制代码
RsaUtil工具类,可以调用里面的方法,产生公钥私钥对,和采用公钥加密,私钥加密等
复制代码
  1 package com.utils;
  2 
  3 import java.io.ByteArrayOutputStream;
  4 import java.security.Key;
  5 import java.security.KeyFactory;
  6 import java.security.KeyPair;
  7 import java.security.KeyPairGenerator;
  8 import java.security.PrivateKey;
  9 import java.security.PublicKey;
 10 import java.security.Signature;
 11 import java.security.interfaces.RSAPrivateKey;
 12 import java.security.interfaces.RSAPublicKey;
 13 import java.security.spec.PKCS8EncodedKeySpec;
 14 import java.security.spec.X509EncodedKeySpec;
 15 import java.util.HashMap;
 16 import java.util.Map;
 17 
 18 import javax.crypto.Cipher;
 19 
 20 /** */
 21 /**
 22  * <p>
 23  * RSA公钥/私钥/签名工具包
 24  * </p>
 25  * <p>
 26  * 罗纳德·李维斯特(Ron [R]ivest)、阿迪·萨莫尔(Adi [S]hamir)和伦纳德·阿德曼(Leonard [A]dleman)
 27  * </p>
 28  * <p>
 29  * 字符串格式的密钥在未在特殊说明情况下都为BASE64编码格式<br/>
 30  * 由于非对称加密速度极其缓慢,一般文件不使用它来加密而是使用对称加密,<br/>
 31  * 非对称加密算法可以用来对对称加密的密钥加密,这样保证密钥的安全也就保证了数据的安全
 32  * </p>
 33  * 
 34  * @author IceWee
 35  * @date 2012-4-26
 36  * @version 1.0
 37  */
 38 public class RSAUtils {
 39 
 40     /** */
 41     /**
 42      * 加密算法RSA
 43      */
 44     public static final String KEY_ALGORITHM = "RSA";
 45 
 46     /** */
 47     /**
 48      * 签名算法
 49      */
 50     public static final String SIGNATURE_ALGORITHM = "MD5withRSA";
 51 
 52     /** */
 53     /**
 54      * 获取公钥的key
 55      */
 56     private static final String PUBLIC_KEY = "RSAPublicKey";
 57 
 58     /** */
 59     /**
 60      * 获取私钥的key
 61      */
 62     private static final String PRIVATE_KEY = "RSAPrivateKey";
 63 
 64     /** */
 65     /**
 66      * RSA最大加密明文大小
 67      */
 68     private static final int MAX_ENCRYPT_BLOCK = 117;
 69 
 70     /** */
 71     /**
 72      * RSA最大解密密文大小
 73      */
 74     private static final int MAX_DECRYPT_BLOCK = 128;
 75 
 76     /** */
 77     /**
 78      * <p>
 79      * 生成密钥对(公钥和私钥)
 80      * </p>
 81      * 
 82      * @return
 83      * @throws Exception
 84      */
 85     public static Map<String, Object> genKeyPair() throws Exception {
 86         KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
 87         keyPairGen.initialize(1024);
 88         KeyPair keyPair = keyPairGen.generateKeyPair();
 89         RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
 90         RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
 91         Map<String, Object> keyMap = new HashMap<String, Object>(2);
 92         keyMap.put(PUBLIC_KEY, publicKey);
 93         keyMap.put(PRIVATE_KEY, privateKey);
 94         return keyMap;
 95     }
 96 
 97     /** */
 98     /**
 99      * <p>
100      * 用私钥对信息生成数字签名
101      * </p>
102      * 
103      * @param data
104      *            已加密数据
105      * @param privateKey
106      *            私钥(BASE64编码)
107      * 
108      * @return
109      * @throws Exception
110      */
111     public static String sign(byte[] data, String privateKey) throws Exception {
112         byte[] keyBytes = Base64Utils.decode(privateKey);
113         PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
114         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
115         PrivateKey privateK = keyFactory.generatePrivate(pkcs8KeySpec);
116         Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
117         signature.initSign(privateK);
118         signature.update(data);
119         return Base64Utils.encode(signature.sign());
120     }
121 
122     /** */
123     /**
124      * <p>
125      * 校验数字签名
126      * </p>
127      * 
128      * @param data
129      *            已加密数据
130      * @param publicKey
131      *            公钥(BASE64编码)
132      * @param sign
133      *            数字签名
134      * 
135      * @return
136      * @throws Exception
137      * 
138      */
139     public static boolean verify(byte[] data, String publicKey, String sign) throws Exception {
140         byte[] keyBytes = Base64Utils.decode(publicKey);
141         X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
142         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
143         PublicKey publicK = keyFactory.generatePublic(keySpec);
144         Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
145         signature.initVerify(publicK);
146         signature.update(data);
147         return signature.verify(Base64Utils.decode(sign));
148     }
149 
150     /** */
151     /**
152      * <P>
153      * 私钥解密
154      * </p>
155      * 
156      * @param encryptedData
157      *            已加密数据
158      * @param privateKey
159      *            私钥(BASE64编码)
160      * @return
161      * @throws Exception
162      */
163     public static byte[] decryptByPrivateKey(byte[] encryptedData, String privateKey) throws Exception {
164         byte[] keyBytes = Base64Utils.decode(privateKey);
165         PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
166         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
167         Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
168         Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
169         cipher.init(Cipher.DECRYPT_MODE, privateK);
170         int inputLen = encryptedData.length;
171         ByteArrayOutputStream out = new ByteArrayOutputStream();
172         int offSet = 0;
173         byte[] cache;
174         int i = 0;
175         // 对数据分段解密
176         while (inputLen - offSet > 0) {
177             if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
178                 cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
179             } else {
180                 cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
181             }
182             out.write(cache, 0, cache.length);
183             i++;
184             offSet = i * MAX_DECRYPT_BLOCK;
185         }
186         byte[] decryptedData = out.toByteArray();
187         out.close();
188         return decryptedData;
189     }
190 
191     /** */
192     /**
193      * <p>
194      * 公钥解密
195      * </p>
196      * 
197      * @param encryptedData
198      *            已加密数据
199      * @param publicKey
200      *            公钥(BASE64编码)
201      * @return
202      * @throws Exception
203      */
204     public static byte[] decryptByPublicKey(byte[] encryptedData, String publicKey) throws Exception {
205         byte[] keyBytes = Base64Utils.decode(publicKey);
206         X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
207         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
208         Key publicK = keyFactory.generatePublic(x509KeySpec);
209         Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
210         cipher.init(Cipher.DECRYPT_MODE, publicK);
211         int inputLen = encryptedData.length;
212         ByteArrayOutputStream out = new ByteArrayOutputStream();
213         int offSet = 0;
214         byte[] cache;
215         int i = 0;
216         // 对数据分段解密
217         while (inputLen - offSet > 0) {
218             if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
219                 cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
220             } else {
221                 cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
222             }
223             out.write(cache, 0, cache.length);
224             i++;
225             offSet = i * MAX_DECRYPT_BLOCK;
226         }
227         byte[] decryptedData = out.toByteArray();
228         out.close();
229         return decryptedData;
230     }
231 
232     /** */
233     /**
234      * <p>
235      * 公钥加密
236      * </p>
237      * 
238      * @param data
239      *            源数据
240      * @param publicKey
241      *            公钥(BASE64编码)
242      * @return
243      * @throws Exception
244      */
245     public static byte[] encryptByPublicKey(byte[] data, String publicKey) throws Exception {
246         byte[] keyBytes = Base64Utils.decode(publicKey);
247         X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
248         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
249         Key publicK = keyFactory.generatePublic(x509KeySpec);
250         // 对数据加密
251         Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
252         cipher.init(Cipher.ENCRYPT_MODE, publicK);
253         int inputLen = data.length;
254         ByteArrayOutputStream out = new ByteArrayOutputStream();
255         int offSet = 0;
256         byte[] cache;
257         int i = 0;
258         // 对数据分段加密
259         while (inputLen - offSet > 0) {
260             if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
261                 cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
262             } else {
263                 cache = cipher.doFinal(data, offSet, inputLen - offSet);
264             }
265             out.write(cache, 0, cache.length);
266             i++;
267             offSet = i * MAX_ENCRYPT_BLOCK;
268         }
269         byte[] encryptedData = out.toByteArray();
270         out.close();
271         return encryptedData;
272     }
273 
274     /** */
275     /**
276      * <p>
277      * 私钥加密
278      * </p>
279      * 
280      * @param data
281      *            源数据
282      * @param privateKey
283      *            私钥(BASE64编码)
284      * @return
285      * @throws Exception
286      */
287     public static byte[] encryptByPrivateKey(byte[] data, String privateKey) throws Exception {
288         byte[] keyBytes = Base64Utils.decode(privateKey);
289         PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
290         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
291         Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
292         Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
293         cipher.init(Cipher.ENCRYPT_MODE, privateK);
294         int inputLen = data.length;
295         ByteArrayOutputStream out = new ByteArrayOutputStream();
296         int offSet = 0;
297         byte[] cache;
298         int i = 0;
299         // 对数据分段加密
300         while (inputLen - offSet > 0) {
301             if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
302                 cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
303             } else {
304                 cache = cipher.doFinal(data, offSet, inputLen - offSet);
305             }
306             out.write(cache, 0, cache.length);
307             i++;
308             offSet = i * MAX_ENCRYPT_BLOCK;
309         }
310         byte[] encryptedData = out.toByteArray();
311         out.close();
312         return encryptedData;
313     }
314 
315     /** */
316     /**
317      * <p>
318      * 获取私钥
319      * </p>
320      * 
321      * @param keyMap
322      *            密钥对
323      * @return
324      * @throws Exception
325      */
326     public static String getPrivateKey(Map<String, Object> keyMap) throws Exception {
327         Key key = (Key) keyMap.get(PRIVATE_KEY);
328         return Base64Utils.encode(key.getEncoded());
329     }
330 
331     /** */
332     /**
333      * <p>
334      * 获取公钥
335      * </p>
336      * 
337      * @param keyMap
338      *            密钥对
339      * @return
340      * @throws Exception
341      */
342     public static String getPublicKey(Map<String, Object> keyMap) throws Exception {
343         Key key = (Key) keyMap.get(PUBLIC_KEY);
344         return Base64Utils.encode(key.getEncoded());
345     }
346 
347     /**
348      * java端公钥加密
349      */
350     public static String encryptedDataOnJava(String data, String PUBLICKEY) {
351         try {
352             data = Base64Utils.encode(encryptByPublicKey(data.getBytes(), PUBLICKEY));
353         } catch (Exception e) {
354             // TODO Auto-generated catch block
355             e.printStackTrace();
356         }
357         return data;
358     }
359 
360     /**
361      * java端私钥解密
362      */
363     public static String decryptDataOnJava(String data, String PRIVATEKEY) {
364         String temp = "";
365         try {
366             byte[] rs = Base64Utils.decode(data);
367             temp = new String(RSAUtils.decryptByPrivateKey(rs, PRIVATEKEY),"UTF-8"); //以utf-8的方式生成字符串
368 
369         } catch (Exception e) {
370             e.printStackTrace();
371         }
372         return temp;
373     }
374 
375 }
复制代码

json工具类

复制代码
 1 package com.utils;
 2 
 3 import com.google.gson.Gson;
 4 import com.google.gson.GsonBuilder;
 5 import com.google.gson.JsonNull;
 6 
 7 public class JsonUtil {
 8 
 9     private static Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd").serializeNulls().create();
10 
11     /**
12      * @MethodName : toJson
13      * @Description : 将对象转为JSON串,此方法能够满足大部分需求
14      * @param src
15      *            :将要被转化的对象
16      * @return :转化后的JSON串
17      */
18     public static String toJson(Object src) {
19         if (src == null) {
20             return gson.toJson(JsonNull.INSTANCE);
21         }
22         return gson.toJson(src);
23     }
24 }
复制代码

 

 到这一步我们的工具类准备的差不多了,可以开始进入我们的主题了,java端Rsa测试类和web端交互的demo了

Rsa测试java测试类

复制代码
 1 package com.test;
 2 
 3 import java.util.Map;
 4 
 5 import org.junit.Test;
 6 
 7 import com.utils.Base64Utils;
 8 import com.utils.RSAUtils;
 9 
10 public class RSATester {
11 
12     static String publicKey;
13     static String privateKey;
14 
15     static {
16         try {
17             Map<String, Object> keyMap = RSAUtils.genKeyPair();
18             publicKey = RSAUtils.getPublicKey(keyMap);
19             privateKey = RSAUtils.getPrivateKey(keyMap);
20             System.err.println("公钥: \n\r" + publicKey);
21             System.err.println("私钥: \n\r" + privateKey);
22         } catch (Exception e) {
23             e.printStackTrace();
24         }
25     }
26 
27     public static void main(String[] args) throws Exception {
28         testJavaRsa();
29     }
30 
31     @Test
32     public void tests() throws Exception {
33         String data = "hNYdT0/8wxljGvLQVPYUDeoWS217rmB5msKOljb6OBsOhdL1Domxt6Sy3BqdGqS3StGJuZuQ9wEFzGdyoTQ7IRiC0gRrkLuxvCUq8FANt1JpJCBqvzLdQD/ygCjkJMWWkMU4EFUW3xYkAsidqM8Zynhpk+mdja3789Ng4s68xJI=";
34 
35         String privateKey = "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";
36         byte[] rs = Base64Utils.decode(data);
37 
38         String r1 = new String(RSAUtils.decryptByPrivateKey(rs, privateKey));
39 
40         System.out.println("\r\n\r\n" + r1 + "okb");
41 
42     }
43 
44     static void testSign() throws Exception {
45         System.err.println("私钥加密——公钥解密");
46         String source = "32232";
47         System.out.println("原文字:\r\n" + source);
48         byte[] data = source.getBytes();
49         byte[] encodedData = RSAUtils.encryptByPrivateKey(data, privateKey);
50         System.out.println("加密后:\r\n" + new String(encodedData));
51         byte[] decodedData = RSAUtils.decryptByPublicKey(encodedData, publicKey);
52         String target = new String(decodedData);
53         System.out.println("解密后: \r\n" + target);
54         System.err.println("私钥签名——公钥验证签名");
55         String sign = RSAUtils.sign(encodedData, privateKey);
56         System.err.println("签名:\r" + sign);
57         boolean status = RSAUtils.verify(encodedData, publicKey, sign);
58         System.err.println("验证结果:\r" + status);
59     }
60 
61     static void test() throws Exception {
62         System.err.println("公钥加密——私钥解密");
63         String source = "这是一行没有任何意义的文字,你看完了等于没看,不是吗?";
64         System.out.println("\r加密前文字:\r\n" + source);
65         byte[] data = source.getBytes();
66         byte[] encodedData = RSAUtils.encryptByPublicKey(data, publicKey);
67         System.out.println("加密后文字:\r\n" + new String(encodedData));
68         System.out.println("----------------:base64处理:" + Base64Utils.encode(encodedData));
69         byte[] decodedData = RSAUtils.decryptByPrivateKey(encodedData, privateKey);
70         String target = new String(decodedData);
71         System.out.println("解密后文字: \r\n" + target);
72     }
73 
74     /*
75      * 测试自己封装java端加密和解密的方法
76      */
77 
78     static void testJavaRsa() {
79         String PUBLICKEY = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCcd+0zTY9Gn94iqkQJTlxYnEnCeFsLkk0a7hoAvi2B74VzDVV3xH0ZO9RkXvo1SgCB+uzbEWdrgQkzTqyjfTtgOguu3OnkVxIMJF34ibchTY0LWHGxq1m2gLGuVVqrlu1LtdV0X7xo/5zc8Mr+46veWb86kSpqe6rOAm69WWo5GwIDAQAB";
80         String PRIVATEKEY = "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";
81         String data = "你好啊,冯老师!s 223 1@324234234sfsfsf";
82         data = RSAUtils.encryptedDataOnJava(data, PUBLICKEY);
83         System.out.println("加密数据:" + data);
84 
85         System.out.println("解密数据:" + RSAUtils.decryptDataOnJava(data, PRIVATEKEY));
86     }
87 
88     static void testFrontEncrptAndAfterDecrypt() {
89         String PRIVATEKEY = "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";
90         String data = "FBGU7sQfpSfCgB2hqFuIqkivEUHVRHD8JFdyxYeWqQHsTj9UEuVmvi28n1fOHRwW+3aZD3ttdzfUHWiXD2NErcX/CYs5BtSXT7RcJfWWcXvegq5BBDEAJCADWCRdYnblN+SLUC+ctDXcLw4xmjwAajowSzhCfY/lU3TdnJjO488=";
91         System.out.println("解密数据:" + RSAUtils.decryptDataOnJava(data, PRIVATEKEY));
92     }
93 
94 }
复制代码

 前端加密jsp页面

 

复制代码
 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 7 <title>Insert title here</title>
 8 <script src="js/jquery-2.1.3.js"></script>
 9 <script src="js/jsencrypt.min.js"></script>
10 </head>
11 <body>
12 
13     <script type="text/javascript">
14         $(function() {
15             $("#bt").click(
16                     function() {
17 
18                         var encrypt = new JSEncrypt();
19                         encrypt.setPublicKey($("#publickey").val());
20                         encrypt.setPrivateKey($("#privatekey").val());
21                         var password = $("#password").val();
22                         var uname = $("#uname").val();
23                         password = encrypt.encrypt(password);
24 
25                         uname = encrypt.encrypt(uname);
26                         $("#jmName").val(uname);
27                         $("#jmPasswrod").val(password);
28                         var jsonData = {
29                             "password" : password,
30                             "uname" : uname
31                         };
32 
33                         $.post("jiemi.do", jsonData, function(result) {
34                             alert("解密的用户名:" + result.uname + "\n" + "解密的密码:"
35                                     + result.password);
36 
37                         }, 'json');
38                     });
39         });
40     </script>
41     <h2>公钥:</h2>
42     <textarea id="publickey" rows="5" cols="45">MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJ9s1qlOyv9qpuaTqauW6fUftzE50rVk3yVPZwv1aO1Ch/XSEz76xCwkyvqpaqceRXrPpdBmO5+ruJ+I8osOHo7L5GWEOcMOO+8izp9hXKBBrmRMD4Egpn00k9DhVIEKp/vyddZPS/doxB8onhN6poTJDLdFLFVEicMf52caN9GQIDAQAB
43         </textarea>
44     <h2>私钥</h2>
45     <textarea rows="10" cols="45" id="privatekey">MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAIn2zWqU7K/2qm5pOpq5bp9R+3MTnStWTfJU9nC/Vo7UKH9dITPvrELCTK+qlqpx5Fes+l0GY7n6u4n4jyiw4ejsvkZYQ5ww477yLOn2FcoEGuZEwPgSCmfTST0OFUgQqn+/J11k9L92jEHyieE3qmhMkMt0UsVUSJwx/nZxo30ZAgMBAAECgYBD3YHigeuEC4R+14iaf8jo2j0kuGtB3Cxvnlez0otTqw1YyYkBsU49cLKkXvfKVEgM0Ow/QltgKvSBxCE31PrrDka5TygVMqqA/IM7NrDvjUcGLjyoeNmLA8660fWcDxUTlAGN5kxIvUATayVwKVflpWPWu0FPKsWrZustnEo+4QJBAMCmYsWqAKWYMVRXFP3/XGRfio8DV793TOckyBSN9eh8UhgoZyT3u7oeHmDJEwm4aNMHlg1Pcdc6tNsvi1FRCiUCQQC3VNzfF4xOtUgX7vWPL8YVljLuXmy12iVYmg6ofu9l31nwM9FLQ1TRFglvF5LWrIXTQb07PgGd5DJMAQWGsqLlAkAPE7Z9M73TN+L8b8hDzJ1leZi1cpSGdoa9PEKwYR/SrxAZtefEm+LEQSEtf+8OfrEtetWCeyo0pvKKiOEFXytFAkEAgynL/DC0yXsZYUYtmYvshHU5ayFTVagFICbYZeSrEo+BoUDxdI9vl0fU6A5NmBlGhaZ65G+waG5jLc1tTrlvoQJAXBEoPcBNAosiZHQfYBwHqU6mJ9/ZacJh3MtJzGGebfEwJgtln5b154iANqNWXpySBLvkK+Boq7FYRiD83pqmUg==</textarea>
46     <hr />
47     <form>
48         用户名:<input type="text" name="uname" id="uname" /> 密码:<input
49             type="text" name="password" id="password" />
50         <hr />
51         用户密文
52         <textarea id="jmName">
53     </textarea>
54         密码密文
55         <textarea id="jmPasswrod">
56     </textarea>
57         <input type="button" id="bt" value="提交" />
58     </form>
59 
60 </body>
61 </html>
复制代码

 后端servlet解密

复制代码
 1 package com;
 2 
 3 import java.io.IOException;
 4 import java.util.HashMap;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.http.HttpServlet;
 8 import javax.servlet.http.HttpServletRequest;
 9 import javax.servlet.http.HttpServletResponse;
10 
11 import com.utils.JsonUtil;
12 import com.utils.RSAUtils;
13 
14 /**
15  * Servlet implementation class JieMiServlet
16  */
17 public class JieMiServlet extends HttpServlet {
18     private static final long serialVersionUID = 1L;
19 
20     protected void doGet(HttpServletRequest request, HttpServletResponse response)
21             throws ServletException, IOException {
22         doPost(request, response);
23     }
24 
25     protected void doPost(HttpServletRequest request, HttpServletResponse response)
26             throws ServletException, IOException {
27         // 获取数据
28         String uname = request.getParameter("uname");
29         String password = request.getParameter("password");
30         String PRIVATEKEY = "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";
31         // 解密
32         uname = RSAUtils.decryptDataOnJava(uname, PRIVATEKEY);
33         password = RSAUtils.decryptDataOnJava(password, PRIVATEKEY);
34         // 用map封装返回的数据
35         HashMap<String, Object> result = new HashMap<String, Object>();
36         result.put("uname", uname);
37         result.put("password", password);
38 
39         response.getWriter().print(JsonUtil.toJson(result));
40 
41     }
42 
43 }
复制代码

 

转自【https://www.cnblogs.com/nanyangke-cjz/p/5898361.html】

版权声明:本文内容由阿里云实名注册用户自发贡献,版权归原作者所有,阿里云开发者社区不拥有其著作权,亦不承担相应法律责任。具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容,填写侵权投诉表单进行举报,一经查实,本社区将立刻删除涉嫌侵权内容。

相关文章
❤️Android 从源码解读 Apk 的安装过程 ❤️(中)
PackageManagerService installStage() mHandler() HandlerParams.startCopy() InstallParams FileInstallArgs.copyApk() PackageManagerServiceUtils.copyPackage()
7 0
建议收藏丨sql行转列的一千种写法!!
建议收藏丨sql行转列的一千种写法!!
6 0
我绘制文章插图的三个神级工具
今天来给大家介绍三个我在制作文章插图时经常使用的堪称神级的工具,每一个工具都可以绘制非常精美图片,对于经常输出文章的朋友来说,绝对不容错过~
5 0
万字长文丨7个经典问题,助你拿下Java面试(建议收藏)
万字长文丨7个经典问题,助你拿下Java面试(建议收藏)
6 0
Java项目:CRM客户关系管理系统(Spring+SpringMVC+MyBatis + maven)(二)
Java项目:CRM客户关系管理系统(Spring+SpringMVC+MyBatis + maven)(二)
7 0
Hive小文件问题:如何产生、造成影响、解放办法
Hive小文件问题:如何产生、造成影响、解放办法
6 0
10行Python代码能做出哪些有趣的事情?
Python 凭借语法的易学性,代码的简洁性以及类库的丰富性,赢得了众多开发者的喜爱。下面我们来看看,用不超过10行代码能实现些什么有趣的功能
8 0
Java JVM知识汇总
1、JVM 是什么? Java虚拟机(Java virtual machine,JVM)是 Java 程序运行基础,Java虚拟机有自己完善的硬件架构,如处理器、堆栈等,还具有相应的指令系统。 Java虚拟机本质上就是一个程序,当它在命令行上启动的时候,就开始执行保存在某字节码文件中的指令。Java语言的可移植性正是建立在Java虚拟机的基础上。任何平台只要装有针对于该平台的Java虚拟机,字节码文件(.class)就可以在该平台上运行。这就是“一次编译,多次运行”。
5 0
Java项目:CRM客户关系管理系统(Spring+SpringMVC+MyBatis + maven)(三)
Java项目:CRM客户关系管理系统(Spring+SpringMVC+MyBatis + maven)(三)
6 0
+关注
缤纷世界wb
什么都会一点儿,但只是会一点儿
214
文章
0
问答
文章排行榜
最热
最新
相关电子书
更多
OceanBase 入门到实战教程
立即下载
阿里云图数据库GDB,加速开启“图智”未来.ppt
立即下载
实时数仓Hologres技术实战一本通2.0版(下)
立即下载