AES C#, Java, PHP, Python和Javascript几种语言的AES加密解密实现

c#里面的AES加密解密

在visual studio中写的c#代码

using System;  using System.Collections.Generic;  using System.Linq;  using System.Text;  using System.Security.Cryptography;    namespace test  {      class Class1      {          static void Main(string[] args)          {              Console.WriteLine("I am comming");              String source = "Test String";              String encryptData = Class1.Encrypt(source, "1234567812345678", "1234567812345678");              Console.WriteLine("=1==");              Console.WriteLine(encryptData);              Console.WriteLine("=2==");              String decryptData = Class1.Decrypt("2fbwW9+8vPId2/foafZq6Q==", "1234567812345678", "1234567812345678");              Console.WriteLine(decryptData);                Console.WriteLine("=3==");                Console.WriteLine("I will go out");          }            public static string Encrypt(string toEncrypt, string key, string iv)          {              byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);              byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);              byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);              RijndaelManaged rDel = new RijndaelManaged();              rDel.Key = keyArray;              rDel.IV = ivArray;              rDel.Mode = CipherMode.CBC;              rDel.Padding = PaddingMode.Zeros;              ICryptoTransform cTransform = rDel.CreateEncryptor();              byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);              return Convert.ToBase64String(resultArray, 0, resultArray.Length);          }            public static string Decrypt(string toDecrypt, string key, string iv)          {              byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);              byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);              byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);              RijndaelManaged rDel = new RijndaelManaged();              rDel.Key = keyArray;              rDel.IV = ivArray;              rDel.Mode = CipherMode.CBC;              rDel.Padding = PaddingMode.Zeros;              ICryptoTransform cTransform = rDel.CreateDecryptor();              byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);              return UTF8Encoding.UTF8.GetString(resultArray);          }      }  }

其中加密后以及解密后的字符串都能成功打印，但Console.WriteLine("=3==");之后的输出就没有了，最后输出个线程返回值0，然后就没有然后了。c#不懂，就不深究了，就已执行的部分，是符合要求了。

Java的AES加密解密：

java代码，测试也是可以的

import javax.crypto.Cipher;  import javax.crypto.spec.IvParameterSpec;  import javax.crypto.spec.SecretKeySpec;    import org.junit.Test;    ...        @Test      public void testCrossLanguageEncrypt() throws Exception{          System.out.println(encrypt());          System.out.println(desEncrypt());      }        public static String encrypt() throws Exception {          try {              String data = "Test String";              String key = "1234567812345678";              String iv = "1234567812345678";              Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");              int blockSize = cipher.getBlockSize();              byte[] dataBytes = data.getBytes();              int plaintextLength = dataBytes.length;              if (plaintextLength % blockSize != 0) {                  plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));              }              byte[] plaintext = new byte[plaintextLength];              System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);                SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");              IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());              cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);              byte[] encrypted = cipher.doFinal(plaintext);              return new sun.misc.BASE64Encoder().encode(encrypted);          } catch (Exception e) {              e.printStackTrace();              return null;          }      }      public static String desEncrypt() throws Exception {          try          {              String data = "2fbwW9+8vPId2/foafZq6Q==";              String key = "1234567812345678";              String iv = "1234567812345678";                byte[] encrypted1 = new sun.misc.BASE64Decoder().decodeBuffer(data);                Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");              SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");              IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());                cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);              byte[] original = cipher.doFinal(encrypted1);              String originalString = new String(original);              return originalString;          }          catch (Exception e) {              e.printStackTrace();              return null;          }      }

php的AES加密解密

php代码，php很多东西都是提供好的，直接用函数，但是php目前所知填充模式只有ZeroPadding，于是其他语言就只能跟着它来了：

<?php  $privateKey = "1234567812345678";  $iv     = "1234567812345678";  $data   = "Test String";    //加密  $encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $data, MCRYPT_MODE_CBC, $iv);  echo($encrypted);  echo '<br/>';  echo(base64_encode($encrypted));  echo '<br/>';    //解密  $encryptedData = base64_decode("2fbwW9+8vPId2/foafZq6Q==");  $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $privateKey, $encryptedData, MCRYPT_MODE_CBC, $iv);  echo($decrypted);  ?>

Javascript下aes加解密，试过也可以，需要在https://code.google.com/p/crypto-js/下载工具包

<script type="text/javascript" src="aes.js"></script>      <script type="text/javascript" src="pad-zeropadding.js"></script>

导入文件，aes.js需要导入crypto-js压缩包中rollups文件夹下的那个aes.js文件，如果引入的是components文件夹下的aes.js是会报错的

<script type="text/javascript">          var data = "Test String";          var key  = CryptoJS.enc.Latin1.parse('1234567812345678');          var iv   = CryptoJS.enc.Latin1.parse('1234567812345678');            //加密          var encrypted = CryptoJS.AES.encrypt(data,key,{iv:iv,mode:CryptoJS.mode.CBC,padding:CryptoJS.pad.ZeroPadding});            document.write(encrypted.ciphertext);          document.write('<br/>');          document.write(encrypted.key);          document.write('<br/>');          document.write(encrypted.iv);          document.write('<br/>');          document.write(encrypted.salt);          document.write('<br/>');          document.write(encrypted);          document.write('<br/>');            //解密          var decrypted = CryptoJS.AES.decrypt(encrypted,key,{iv:iv,padding:CryptoJS.pad.ZeroPadding});          console.log(decrypted.toString(CryptoJS.enc.Utf8));      </script>

成功加解密，最后解密的字符串串在浏览器的控制台里才能看到。

python的AES加密解密

最后加一个python下的aes，需要安装python Crypto：

#!/usr/bin/env python  # -*- coding: utf-8 -*-  from Crypto.Cipher import AES  import base64  PADDING = '\0'  #PADDING = ' '  pad_it = lambda s: s+(16 - len(s)%16)*PADDING    key = '1234567812345678'  iv = '1234567812345678'  source = 'Test String'  generator = AES.new(key, AES.MODE_CBC, iv)  crypt = generator.encrypt(pad_it(source))     cryptedStr = base64.b64encode(crypt)  print cryptedStr  generator = AES.new(key, AES.MODE_CBC, iv)  recovery = generator.decrypt(crypt)  print recovery.rstrip(PADDING)

注意python下需要用'\0'来填充，如果是空格来填充，python加密得到的字符串会跟其他语言不同。另外注意generator在加密的时候使用过，解密的时候需重新生成再解密，否则解密失败。最后得到的字符串，在python控制台看到尾部是多个NUL这样的东西，要这样recovery.rstrip(PADDING)去除掉才是原始字符串。

可以看到aes加密的中间结果是byte[]类型，直接new String(byte[])会看不到有意义的中间结果，这里用的是base64，是因为各个语言都有这样的支持。在同个语言内，也有bytesToHexString这样的方式。