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

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

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 AESimport base64PADDING = '\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 cryptedStrgenerator = 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。

跨语言加解密的要求是：AES/CBC/ZeroPadding 128位模式，key和iv一样，编码统一用utf-8。不支持ZeroPadding的就用NoPadding.