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c#里面的AES加密解密
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。
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);
        }
    }
} 
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
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> 
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。
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.
