RSA AES 前端JS与后台JAVA的加密解密的是实现

AES CryptoJS
前提是编码方式,key,vi中设置一样,就可以进行跨语言加密解密

<link rel="stylesheet" href="<%=basePath %>/css/login.css">

<script src="<%=basePath %>jslib/jquery-1.8.3.js" type="text/javascript" ></script>

<script src="<%=basePath %>jslib/Common.js" type="text/javascript" ></script>

<script src="<%=basePath %>jslib/core-min.js" type="text/javascript" ></script>

<script src="<%=basePath %>jslib/aes.js" type="text/javascript" ></script>

</head>

<body>

<form action="<%=basePath %>login?action=goAES" id="login" name="form" method="post">

<h1>Log In</h1>

<fieldset id="inputs">

<input id="name" type="text" placeholder="Username" value="" autofocus required>

<input id="pwd" name="pwd" type="password" placeholder="Password" value="" required>

</fieldset>

<fieldset id="actions">

<input type="button" id="button" onclick="go()" value="登录">

<a href="#" id="msg"></a>

</fieldset>

<input type="hidden" name="key" id="key">

<input type="hidden" id="msg_source" value="0807060504030201">

</form>

<script type="text/javascript">

function go(){

if(isEmptyById(['name','pwd'])){

$('#msg').text('用户名或密码不能为空');

return;

}

//var pwd = $("#pwd").val();

//console.info("加密前： "+pwd);

//CryptoJS.AES.encrypt('明文','key');

//var ecodeRestult = CryptoJS.AES.encrypt($("#pwd").val(),$("#msg_source").val());

//console.info("加密后："+ecodeRestult);

//$("#pwd").val(ecodeRestult);

//CryptoJS.AES.decrypt('密文','key').toString(CryptoJS.enc.Utf8);

//var decodeResult = CryptoJS.AES.decrypt(ecodeRestult,$("#msg_source").val()).toString(CryptoJS.enc.Utf8);

//console.info("解密后："+decodeResult);

var pwd = $("#pwd").val();

var key = CryptoJS.enc.Utf8.parse($("#msg_source").val());

var iv = CryptoJS.enc.Utf8.parse($("#msg_source").val());

var srcs = CryptoJS.enc.Utf8.parse(pwd);

var encrypted = CryptoJS.AES.encrypt(srcs, key, { iv: iv,mode:CryptoJS.mode.CBC});

$("#pwd").val(encrypted);

$('#login').submit();

}

</script>

这里需要注意的是$("#msg_source").val(); 因为key是动态的，需要从服务器提前设置好，前端AES JS加密指定是CryptoJS.mode.CBC模式，那么Java解密的同时也必须用这个模式来解密，不然会报错Given final block not properly padded...异常
AES--Java

package org.common.kit;

import org.apache.log4j.Logger;

import javax.crypto.Cipher;

import javax.crypto.spec.IvParameterSpec;

import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;

public class AESKit {

/**

* Logger for this class

*/

private static final Logger logger = Logger.getLogger(AESKit.class);

public static final String IV = "0807060504030201";

/*******************************************************************

* AES加密算法

* @author moyun

* 加密用的Key 可以用26个字母和数字组成，最好不要用保留字符，虽然不会错，至于怎么裁决，个人看情况而定    此处使用AES-128-CBC加密模式，key需要为16位。

* */

//加密

public static String Encrypt(String sSrc, String sKey) throws Exception {

if (sKey == null) {

System.out.print("Key为空null");

return null;

}

// 判断Key是否为16位

if (sKey.length() != 16) {

System.out.print("Key长度不是16位");

return null;

}

byte[] raw = sKey.getBytes();

SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");

Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");//"算法/模式/补码方式"

IvParameterSpec iv = new IvParameterSpec(IV.getBytes());//使用CBC模式，需要一个向量iv，可增加加密算法的强度

cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);

byte[] encrypted = cipher.doFinal(sSrc.getBytes());

return Base64.encodeBase64String(encrypted);//此处使用BAES64做转码功能，同时能起到2次

}

//解密

public static String Decrypt(String sSrc, String sKey) throws Exception {

// 判断Key是否正确

if (sKey == null) {

System.out.print("Key为空null");

return null;

}

// 判断Key是否为16位

if (sKey.length() != 16) {

System.out.print("Key长度不是16位");

return null;

}

byte[] raw = sKey.getBytes("ASCII");

SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");

Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");

IvParameterSpec iv = new IvParameterSpec(IV.getBytes());

cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);

byte[] encrypted1 = Base64.decodeBase64(sSrc);//先用bAES64解密

try {

byte[] original = cipher.doFinal(encrypted1);

String originalString = new String(original);

return originalString;

} catch (Exception e) {

logger.info(e.toString());

return null;

}

public static void main(String[] args) throws Exception {

String pwd = "世界你好";

String epwd = Encrypt(pwd, "abcdefghijkmlnsf");

System.out.println(epwd);

System.out.println(Decrypt(epwd, "abcdefghijkmlnsf"));

}

RSA RSAUtils js

 1 <link rel="stylesheet" href="<%=basePath %>/css/login.css">

 2 <script src="<%=basePath %>jslib/security.js" type="text/javascript"></script>

 3 <script src="<%=basePath %>jslib/jquery-1.8.3.js" type="text/javascript" ></script>

 4 <script src="<%=basePath %>jslib/Common.js" type="text/javascript" ></script>

 5 </head>

 6 <body>

 7

 8 <form action="<%=basePath %>login?action=go" id="login" name="form" method="post">

 9     <h1>Log In</h1>

10     <fieldset   id="inputs">

11         <input  id="name" type="text" placeholder="Username" value="" autofocus required>

12         <input  id="pwd"  type="password" placeholder="Password" value=""  required>

13     </fieldset>

14     <fieldset id="actions">

15         <input type="button" id="button" onclick="go()"  value="登 录">

16         <a href="#" id="msg"></a>

17     </fieldset>

18     <input type="hidden" name="modulus" id="hid_modulus" value="${modulus }">

19     <input type="hidden" name="exponent" id="hid_exponent" value="${exponent }">

20     <input type="hidden" name="key" id="key">

21 </form>

22

23 <script type="text/javascript">

24

25     function go(){

26

27         if(isEmptyById(['name','pwd'])){

28             $('#msg').text('用户名或密码不能为空');

29              return;

30         }

31         var modulus = $('#hid_modulus').val(), exponent = $('#hid_exponent').val();

32         var key = RSAUtils.getKeyPair(exponent, '', modulus);

33         var key2="name="+$('#name').val()+"&pwd="+$('#pwd').val();

34         $('#key').val(RSAUtils.encryptedString(key, key2));

35         $('#login').submit();

36     }

37 </script>

  1 package org.common.kit;

  2

  3 import java.io.File;

  4 import java.io.FileInputStream;

  5 import java.io.FileOutputStream;

  6 import java.io.ObjectInputStream;

  7 import java.io.ObjectOutputStream;

  8 import java.math.BigInteger;

  9 import java.security.InvalidParameterException;

 10 import java.security.KeyFactory;

 11 import java.security.KeyPair;

 12 import java.security.KeyPairGenerator;

 13 import java.security.NoSuchAlgorithmException;

 14 import java.security.PrivateKey;

 15 import java.security.Provider;

 16 import java.security.PublicKey;

 17 import java.security.SecureRandom;

 18 import java.security.interfaces.RSAPrivateKey;

 19 import java.security.interfaces.RSAPublicKey;

 20 import java.security.spec.InvalidKeySpecException;

 21 import java.security.spec.RSAPrivateKeySpec;

 22 import java.security.spec.RSAPublicKeySpec;

 23 import java.util.Date;

 24

 25 import javax.crypto.Cipher;

 26

 27 import org.apache.commons.codec.DecoderException;

 28 import org.apache.commons.codec.binary.Hex;

 29 import org.apache.commons.io.FileUtils;

 30 import org.apache.commons.io.IOUtils;

 31 import org.apache.commons.lang3.StringUtils;

 32 import org.apache.commons.lang3.time.DateFormatUtils;

 33 import org.apache.log4j.Logger;

 34 import org.bouncycastle.jce.provider.BouncyCastleProvider;

 35

 36 public abstract class RSA

 37 {

 38

 39     private static final Logger LOGGER = Logger.getLogger(RSA.class);

 40

 41     private static final String ALGORITHOM = "RSA";

 42     private static final String RSA_PAIR_FILENAME = "/__RSA_PAIR.txt";

 43     private static final int KEY_SIZE = 1024;

 44     private static final Provider DEFAULT_PROVIDER = new BouncyCastleProvider();

 45

 46     private static KeyPairGenerator keyPairGen = null;

 47     private static KeyFactory keyFactory = null;

 48

 49     private static KeyPair oneKeyPair = null;

 50

 51     private static File rsaPairFile = null;

 52

 53     static

 54     {

 55         try

 56         {

 57             keyPairGen = KeyPairGenerator.getInstance("RSA", DEFAULT_PROVIDER);

 58             keyFactory = KeyFactory.getInstance("RSA", DEFAULT_PROVIDER);

 59         } catch (NoSuchAlgorithmException ex)

 60         {

 61             LOGGER.error(ex.getMessage());

 62         }

 63         rsaPairFile = new File(getRSAPairFilePath());

 64     }

 65

 66     /***

 67      *

 68      * 返回 解码后的 username pwd

 69      *

 70      * add by 12

 71      *

 72      * @param key

 73      * @return

 74      */

 75     public static String[] decryptUsernameAndPwd(String key)

 76     {

 77

 78         key = RSA.decryptStringByJs(key);

 79

 80         try

 81         {

 82             String username = key.substring(key.indexOf("=") + 1, key.indexOf("&"));

 83             String pwd = key.substring(key.lastIndexOf("=") + 1, key.length());

 84             return new String[] { username, pwd };

 85         } catch (Exception e)

 86         {

 87             return null;

 88         }

 89

 90     }

 91

 92     private static synchronized KeyPair generateKeyPair()

 93     {

 94         try

 95         {

 96             keyPairGen.initialize(1024, new SecureRandom(DateFormatUtils.format(new Date(), "yyyyMMdd").getBytes()));

 97             oneKeyPair = keyPairGen.generateKeyPair();

 98             saveKeyPair(oneKeyPair);

 99             return oneKeyPair;

100         } catch (InvalidParameterException ex)

101         {

102             LOGGER.error("KeyPairGenerator does not support a key length of 1024.", ex);

103         } catch (NullPointerException ex)

104         {

105             LOGGER.error("RSAUtils#KEY_PAIR_GEN is null, can not generate KeyPairGenerator instance.", ex);

106         }

107         return null;

108     }

109

110     private static String getRSAPairFilePath()

111     {

112         String urlPath = RSA.class.getResource("/").getPath();

113         String str = new File(urlPath).getParent() + "/__RSA_PAIR.txt";

114

115         urlPath = null;

116

117         return str;

118     }

119

120     private static boolean isCreateKeyPairFile()

121     {

122         boolean createNewKeyPair = false;

123         if ((!rsaPairFile.exists()) || (rsaPairFile.isDirectory()))

124         {

125             createNewKeyPair = true;

126         }

127         return createNewKeyPair;

128     }

129

130     private static void saveKeyPair(KeyPair keyPair)

131     {

132         FileOutputStream fos = null;

133         ObjectOutputStream oos = null;

134         try

135         {

136             fos = FileUtils.openOutputStream(rsaPairFile);

137             oos = new ObjectOutputStream(fos);

138             oos.writeObject(keyPair);

139         } catch (Exception ex)

140         {

141             ex.printStackTrace();

142         } finally

143         {

144             IOUtils.closeQuietly(oos);

145             IOUtils.closeQuietly(fos);

146         }

147

148         fos = null;

149         oos = null;

150     }

151

152     public static KeyPair getKeyPair()

153     {

154         if (isCreateKeyPairFile()) { return generateKeyPair(); }

155         if (oneKeyPair != null) { return oneKeyPair; }

156         return readKeyPair();

157     }

158

159     private static KeyPair readKeyPair()

160     {

161         FileInputStream fis = null;

162         ObjectInputStream ois = null;

163         try

164         {

165             fis = FileUtils.openInputStream(rsaPairFile);

166             ois = new ObjectInputStream(fis);

167             oneKeyPair = (KeyPair) ois.readObject();

168             return oneKeyPair;

169         } catch (Exception ex)

170         {

171             ex.printStackTrace();

172         } finally

173         {

174             IOUtils.closeQuietly(ois);

175             IOUtils.closeQuietly(fis);

176         }

177

178         fis = null;

179         ois = null;

180         return null;

181     }

182

183     public static RSAPublicKey generateRSAPublicKey(byte[] modulus, byte[] publicExponent)

184     {

185         RSAPublicKeySpec publicKeySpec = new RSAPublicKeySpec(new BigInteger(modulus), new BigInteger(publicExponent));

186         try

187         {

188             return (RSAPublicKey) keyFactory.generatePublic(publicKeySpec);

189         } catch (InvalidKeySpecException ex)

190         {

191             LOGGER.error("RSAPublicKeySpec is unavailable.", ex);

192         } catch (NullPointerException ex)

193         {

194             LOGGER.error("RSAUtils#KEY_FACTORY is null, can not generate KeyFactory instance.", ex);

195         }

196         publicKeySpec = null;

197         modulus = (byte[]) null;

198         publicExponent = (byte[]) null;

199         return null;

200     }

201

202     public static RSAPrivateKey generateRSAPrivateKey(byte[] modulus, byte[] privateExponent)

203     {

204         RSAPrivateKeySpec privateKeySpec = new RSAPrivateKeySpec(new BigInteger(modulus), new BigInteger(privateExponent));

205         try

206         {

207             return (RSAPrivateKey) keyFactory.generatePrivate(privateKeySpec);

208         } catch (InvalidKeySpecException ex)

209         {

210             LOGGER.error("RSAPrivateKeySpec is unavailable.", ex);

211         } catch (NullPointerException ex)

212         {

213             LOGGER.error("RSAUtils#KEY_FACTORY is null, can not generate KeyFactory instance.", ex);

214         }

215         privateKeySpec = null;

216         modulus = (byte[]) null;

217         privateExponent = (byte[]) null;

218         return null;

219     }

220

221     public static RSAPrivateKey getRSAPrivateKey(String hexModulus, String hexPrivateExponent)

222     {

223         if ((StringUtils.isBlank(hexModulus)) || (StringUtils.isBlank(hexPrivateExponent)))

224         {

225             if (LOGGER.isDebugEnabled())

226             {

227                 LOGGER.debug("hexModulus and hexPrivateExponent cannot be empty. RSAPrivateKey value is null to return.");

228             }

229             return null;

230         }

231         byte[] modulus = (byte[]) null;

232         byte[] privateExponent = (byte[]) null;

233         try

234         {

235             modulus = Hex.decodeHex(hexModulus.toCharArray());

236             privateExponent = Hex.decodeHex(hexPrivateExponent.toCharArray());

237         } catch (DecoderException ex)

238         {

239             LOGGER.error("hexModulus or hexPrivateExponent value is invalid. return null(RSAPrivateKey).");

240         }

241         if ((modulus != null) && (privateExponent != null)) { return generateRSAPrivateKey(modulus, privateExponent); }

242         return null;

243     }

244

245     public static RSAPublicKey getRSAPublidKey(String hexModulus, String hexPublicExponent)

246     {

247         if ((StringUtils.isBlank(hexModulus)) || (StringUtils.isBlank(hexPublicExponent)))

248         {

249             if (LOGGER.isDebugEnabled())

250             {

251                 LOGGER.debug("hexModulus and hexPublicExponent cannot be empty. return null(RSAPublicKey).");

252             }

253             return null;

254         }

255         byte[] modulus = (byte[]) null;

256         byte[] publicExponent = (byte[]) null;

257         try

258         {

259             modulus = Hex.decodeHex(hexModulus.toCharArray());

260             publicExponent = Hex.decodeHex(hexPublicExponent.toCharArray());

261         } catch (DecoderException ex)

262         {

263             LOGGER.error("hexModulus or hexPublicExponent value is invalid. return null(RSAPublicKey).");

264         }

265         if ((modulus != null) && (publicExponent != null)) { return generateRSAPublicKey(modulus, publicExponent); }

266         return null;

267     }

268

269     public static byte[] encrypt(PublicKey publicKey, byte[] data) throws Exception

270     {

271         Cipher ci = Cipher.getInstance("RSA", DEFAULT_PROVIDER);

272         ci.init(1, publicKey);

273         return ci.doFinal(data);

274     }

275

276     public static byte[] decrypt(PrivateKey privateKey, byte[] data) throws Exception

277     {

278         Cipher ci = Cipher.getInstance("RSA", DEFAULT_PROVIDER);

279         ci.init(2, privateKey);

280         return ci.doFinal(data);

281     }

282

283     public static String encryptString(PublicKey publicKey, String plaintext)

284     {

285         if ((publicKey == null) || (plaintext == null)) { return null; }

286         byte[] data = plaintext.getBytes();

287         try

288         {

289             byte[] en_data = encrypt(publicKey, data);

290             return new String(Hex.encodeHex(en_data));

291         } catch (Exception ex)

292         {

293             LOGGER.error(ex.getCause().getMessage());

294         }

295         return null;

296     }

297

298     public static String encryptString(String plaintext)

299     {

300         if (plaintext == null) { return null; }

301         byte[] data = plaintext.getBytes();

302         KeyPair keyPair = getKeyPair();

303         try

304         {

305             byte[] en_data = encrypt((RSAPublicKey) keyPair.getPublic(), data);

306             return new String(Hex.encodeHex(en_data));

307         } catch (NullPointerException ex)

308         {

309             LOGGER.error("keyPair cannot be null.");

310         } catch (Exception ex)

311         {

312             LOGGER.error(ex.getCause().getMessage());

313         }

314         return null;

315     }

316

317     public static String decryptString(PrivateKey privateKey, String encrypttext)

318     {

319         if ((privateKey == null) || (StringUtils.isBlank(encrypttext))) return null;

320         try

321         {

322             byte[] en_data = Hex.decodeHex(encrypttext.toCharArray());

323             byte[] data = decrypt(privateKey, en_data);

324             return new String(data);

325         } catch (Exception ex)

326         {

327             LOGGER.error(String.format("\"%s\" Decryption failed. Cause: %s", new Object[] { encrypttext, ex.getCause().getMessage() }));

328         }

329         return null;

330     }

331

332     public static String decryptString(String encrypttext)

333     {

334         if (StringUtils.isBlank(encrypttext)) { return null; }

335         KeyPair keyPair = getKeyPair();

336         try

337         {

338             byte[] en_data = Hex.decodeHex(encrypttext.toCharArray());

339             byte[] data = decrypt((RSAPrivateKey) keyPair.getPrivate(), en_data);

340             return new String(data);

341         } catch (NullPointerException ex)

342         {

343             LOGGER.error("keyPair cannot be null.");

344         } catch (Exception ex)

345         {

346             LOGGER.error(String.format("\"%s\" Decryption failed. Cause: %s", new Object[] { encrypttext, ex.getMessage() }));

347         }

348         return null;

349     }

350

351     public static String decryptStringByJs(String encrypttext)

352     {

353         String text = decryptString(encrypttext);

354         if (text == null) { return null; }

355         return StringUtils.reverse(text);

356     }

357

358     public static RSAPublicKey getDefaultPublicKey()

359     {

360         KeyPair keyPair = getKeyPair();

361         if (keyPair != null) { return (RSAPublicKey) keyPair.getPublic(); }

362         return null;

363     }

364

365     public static RSAPrivateKey getDefaultPrivateKey()

366     {

367         KeyPair keyPair = getKeyPair();

368         if (keyPair != null) { return (RSAPrivateKey) keyPair.getPrivate(); }

369         return null;

370     }

371 }

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